diff --git a/IMPLEMENTATION.md b/IMPLEMENTATION.md
index a29b1a5..d9aa6da 100644
--- a/IMPLEMENTATION.md
+++ b/IMPLEMENTATION.md
@@ -10,8 +10,9 @@
 - `frontend`：Vue3 + TypeScript 前端。
 - `infra`：PostGIS、Redis、Kafka、MinIO、Prometheus、各服务 Docker Compose 编排。
 - `docs/IMPLEMENTATION_COMPLIANCE.md`：设计说明书到实现的映射关系。
+- `docs/full-chain-visualization-design.md`：全链路示例可视化展示设计方案。
 
-当前 AI 服务保留确定性推理适配器，接口、模型组、返回结构均按真实模型接入方式设计。后续接入 YOLO、Mask R-CNN、SAM、ONNX Runtime、TensorRT、Open3D/PCL、GDAL 等模型或算法时，替换对应 FastAPI 服务内的推理适配逻辑即可。
+当前 AI 服务保留确定性推理适配器，接口、模型组、返回结构均按真实模型接入方式设计。全链路示例已实现运行实例、阶段事件、SSE 实时推送和前端运行看板。后续接入 YOLO、Mask R-CNN、SAM、ONNX Runtime、TensorRT、Open3D/PCL、GDAL 等模型或算法时，替换对应 FastAPI 服务内的推理适配逻辑即可。
 
 ## 2. 目录结构
 
@@ -53,6 +54,11 @@ POST /api/v1/exemptions
 GET  /api/v1/models
 GET  /api/v1/stats/overview
 POST /api/v1/demo/run-full-chain
+POST /api/v1/demo/runs
+GET  /api/v1/demo/runs/{run_id}
+GET  /api/v1/demo/runs/{run_id}/events
+GET  /api/v1/demo/runs/{run_id}/events/history
+POST /api/v1/demo/runs/{run_id}/cancel
 ```
 
 ## 5. 验证
@@ -61,7 +67,7 @@ POST /api/v1/demo/run-full-chain
 .\scripts\smoke_test.ps1
 ```
 
-冒烟脚本默认通过前端 Nginx 反向代理访问 API，即 `http://localhost:8088`。如需直连后端，可设置 `RAIL_API_BASE_URL=http://localhost:8080`。
+冒烟脚本默认通过前端 Nginx 反向代理访问 API，即 `http://localhost:8088`。脚本会启动新的可视化全链路运行实例，轮询运行快照直到完成，并校验工单接口与前端入口。如需直连后端，可设置 `RAIL_API_BASE_URL=http://localhost:8080`。
 
 离线静态校验：
 
@@ -105,5 +111,6 @@ python -m pytest
 1. 启动完整技术栈。
 2. 打开 Web 前端。
 3. 点击“运行全链路示例”。
-4. 查看任务、AI 结果、告警、工单、模型版本。
-5. 执行 `scripts/smoke_test.ps1` 验证 API 返回。
+4. 查看全链路运行看板中的阶段时间轴、GIS态势、阶段详情、事件流和完成汇总。
+5. 查看任务、AI 结果、告警、工单、模型版本。
+6. 执行 `scripts/smoke_test.ps1` 验证 API 返回。
diff --git a/docs/IMPLEMENTATION_COMPLIANCE.md b/docs/IMPLEMENTATION_COMPLIANCE.md
index 630fc0a..c908621 100644
--- a/docs/IMPLEMENTATION_COMPLIANCE.md
+++ b/docs/IMPLEMENTATION_COMPLIANCE.md
@@ -30,6 +30,7 @@
 | 工单闭环 | `/api/v1/workorders/callbacks/status` |
 | 基线库与豁免区 | `baseline_objects`、`exemption_areas` 表结构和豁免接口 |
 | 数据标注与模型迭代 | `model_versions` 表和模型版本接口，样本库可继续接 MinIO 路径 |
+| 全链路可视化 | `demo_runs`、`demo_run_events`、SSE 事件流、前端运行看板 |
 | 系统运维 | Actuator、Prometheus、Docker Compose |
 
 ## 3. 接口落实情况
@@ -46,6 +47,11 @@
 | 工单回调 | `POST /api/v1/workorders/callbacks/status` |
 | 豁免区配置 | `POST /api/v1/exemptions` |
 | 模型版本 | `GET /api/v1/models` |
+| 全链路运行实例 | `POST /api/v1/demo/runs` |
+| 全链路运行快照 | `GET /api/v1/demo/runs/{run_id}` |
+| 全链路事件流 | `GET /api/v1/demo/runs/{run_id}/events` |
+| 全链路历史事件 | `GET /api/v1/demo/runs/{run_id}/events/history` |
+| 取消全链路运行 | `POST /api/v1/demo/runs/{run_id}/cancel` |
 
 ## 4. 部署方式
 
@@ -71,8 +77,10 @@
 验证内容：
 
 - 后端健康检查
-- 全链路示例
+- 全链路可视化运行实例
+- 阶段事件与运行快照
 - 统计接口
+- 工单接口
 - 前端页面
 
 离线环境下，如果无法访问 Docker Hub 或 Maven/npm/PyPI 仓库，可先执行静态校验：
@@ -87,7 +95,26 @@
 - 前端 JSON 配置
 - Docker Compose 配置合法性
 
-## 5.1 离线镜像要求
+## 5.1 全链路可视化实现
+
+运行“全链路示例”时，前端不再等待同步接口结束后一次性刷新，而是创建运行实例并订阅 SSE 事件流。后端按阶段发布事件，前端实时更新阶段时间轴、GIS 态势、当前阶段详情、事件流和完成汇总。
+
+已实现阶段包括：
+
+- 运行初始化
+- 巡检任务创建
+- 航线任务下发
+- 多源数据接入
+- 数据预处理
+- AI 推理分析
+- GIS 规则判定
+- 告警生成
+- 工单派发
+- 工单闭环
+- 样本回流
+- 完成汇总
+
+## 5.2 离线镜像要求
 
 完整部署默认使用已验证可用的华为云 SWR Docker Hub 代理 `swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io`，并配置了阿里 PyPI、Maven 多源兜底、npmmirror npm 源。需要以下基础镜像可用：
 
diff --git a/docs/full-chain-visualization-design.md b/docs/full-chain-visualization-design.md
new file mode 100644
index 0000000..ce4c145
--- /dev/null
+++ b/docs/full-chain-visualization-design.md
@@ -0,0 +1,826 @@
+# 全链路示例可视化展示设计方案
+
+## 1. 设计目标
+
+运行全链路示例时，系统需要把“任务创建、无人机巡检、数据接入、预处理、AI 推理、GIS 规则判定、告警生成、工单派发、闭环处置、样本回流”完整展示为可观察、可追踪、可复盘的过程。展示方式不应只在执行结束后刷新统计数据，而应在执行过程中持续呈现每个阶段的状态、输入、输出、耗时、异常和业务结果。
+
+核心目标如下：
+
+- 每个环节都有明确的可视化承载区域，不出现空白占位。
+- 每个环节都有状态：未开始、执行中、成功、失败、跳过、重试中。
+- 每个环节都有业务实体关联：任务、资源、分析任务、AI 结果、告警、工单、样本。
+- 每个环节都有可理解的过程反馈：进度、关键指标、事件日志、空间位置、数据流向。
+- 全链路示例执行完成后，可保留本次运行记录，支持回看与问题定位。
+
+## 2. 当前问题与改造方向
+
+当前 `POST /api/v1/demo/run-full-chain` 为同步接口，后端一次性完成任务创建、资源接入、分析、告警和工单生成，前端只在接口返回后刷新列表与统计。因此用户无法看到中间过程，也无法判断耗时发生在哪个环节。
+
+改造方向：
+
+- 将“全链路示例”从同步动作升级为“示例运行实例”。
+- 后端按阶段执行，并在每个阶段发布事件。
+- 前端打开“全链路运行看板”，通过 SSE 或 WebSocket 实时订阅阶段事件。
+- 每个阶段事件携带可视化负载，前端按事件类型更新进度条、地图、卡片、表格、日志和工单流。
+- 执行结束后，保留运行快照，支持回放。
+
+## 3. 展示总览
+
+全链路运行看板采用一屏式工作台布局：
+
+```text
+┌────────────────────────────────────────────────────────────────────┐
+│ 顶部：运行控制区                                                   │
+│ 运行编号 / 当前阶段 / 总进度 / 开始时间 / 耗时 / 重新运行 / 取消     │
+├────────────────────────────────────────────────────────────────────┤
+│ 阶段时间轴                                                         │
+│ 任务创建 → 航线下发 → 数据接入 → 预处理 → AI推理 → GIS规则 → 告警 → 工单 → 样本闭环 │
+├───────────────────────────────┬────────────────────────────────────┤
+│ 左侧：GIS空间态势             │ 右侧：当前阶段详情                  │
+│ 线路、航线、资源点、告警点     │ 阶段说明、输入输出、指标、结果       │
+│ 防护区、防洪区、工单位置       │                                    │
+├───────────────────────────────┴────────────────────────────────────┤
+│ 底部：多标签详情区                                                  │
+│ 事件流 / 数据资源 / AI结果 / 规则命中 / 告警工单 / 样本回流          │
+└────────────────────────────────────────────────────────────────────┘
+```
+
+页面行为：
+
+- 点击“运行全链路示例”后，按钮进入运行态，并打开运行看板。
+- 阶段时间轴从左到右推进，当前阶段高亮并展示进度。
+- GIS 区域持续叠加航线、数据采集点、隐患点、规则区域和工单点位。
+- 右侧详情区根据当前阶段动态切换展示内容。
+- 底部事件流持续追加结构化事件，支持按阶段筛选。
+- 执行完成后，顶部显示总耗时、生成结果和闭环状态。
+
+## 4. 全链路阶段设计
+
+| 阶段 | 阶段编码 | 主要动作 | 可视化展示 | 阶段输出 |
+| --- | --- | --- | --- | --- |
+| 运行初始化 | `run.initializing` | 创建运行实例、锁定场景参数、初始化进度 | 运行编号、场景清单、线路范围、阶段时间轴置灰 | `run_id`、场景集、线路信息 |
+| 巡检任务创建 | `task.created` | 创建巡检任务，写入任务表，发布任务事件 | 任务卡片、线路里程范围、优先级、任务状态 | `task_id` |
+| 航线任务下发 | `uav.dispatching` | 模拟航线下发、任务状态回调 | GIS 航线动画、起降点、航线里程、无人机状态 | 航线状态、任务回调记录 |
+| 多源数据接入 | `resource.ingesting` | 接入可见光、红外、TIF/点云等资源 | 资源上传卡片、文件类型图标、接入进度、采集点 | `resource_ids` |
+| 数据预处理 | `preprocess.running` | 格式解析、时间同步、坐标归一、影像/点云预处理 | 处理队列、预处理步骤勾选、质量检查指标 | 标准化资源、质量报告 |
+| AI 推理分析 | `ai.inferencing` | 调用视觉推理和点云分析服务 | 模型矩阵、推理进度、识别结果缩略卡、置信度分布 | `ai_result_ids` |
+| GIS 规则判定 | `rule.evaluating` | 空间规则、业务阈值、豁免区、基线库匹配 | 地图规则区域、高亮命中点、规则命中列表 | 规则决策、抑制结果 |
+| 告警生成 | `alarm.generating` | 生成有效告警、分类分级、证据关联 | 告警级别分布、告警卡片、证据链、空间定位 | `alarm_ids` |
+| 工单派发 | `workorder.dispatching` | 自动创建工单、派发复核人员 | 工单流转泳道、派发状态、负责人、截止时间 | `workorder_ids` |
+| 工单闭环 | `workorder.closing` | 模拟处置反馈、关闭告警、更新工单 | 闭环进度、已处置/待处置数量、操作记录 | 工单状态、告警状态 |
+| 样本回流 | `sample.feedback` | 生成样本回流记录、模型迭代候选 | 样本队列、标注状态、模型版本影响指标 | 样本记录、模型迭代待办 |
+| 完成汇总 | `run.completed` | 汇总运行结果、耗时、数量、异常 | 总览指标、阶段耗时条、最终地图、结果摘要 | 运行快照 |
+
+## 5. 阶段可视化细节
+
+### 5.1 运行初始化
+
+展示内容：
+
+- 运行编号：`run_id`
+- 示例场景：违法开挖、塔吊、人员入侵、防洪点精密监测、接触网异物、杆上设备发热
+- 线路范围：`line-demo K123+000 - K130+000`
+- 预计阶段数：12
+
+界面元素：
+
+- 顶部运行状态条
+- 阶段时间轴
+- 全链路参数摘要
+
+### 5.2 巡检任务创建
+
+展示内容：
+
+- 任务 ID、线路、里程范围、优先级、任务状态
+- 任务创建事件：`inspection.task.created`
+- 任务写库结果
+
+界面元素：
+
+- 任务卡片从“待创建”切换为“已创建”
+- 时间轴第一个节点点亮
+- 事件流追加任务创建日志
+
+### 5.3 航线任务下发
+
+展示内容：
+
+- 航线 ID、起降点、里程范围、预计飞行时间
+- 无人机任务状态：已下发、执行中、返航、完成
+- 与巡检管理平台的状态回调
+
+界面元素：
+
+- GIS 地图绘制航线轨迹
+- 航线进度沿线路移动
+- 状态徽标显示“任务下发中 / 飞行中 / 已完成”
+
+### 5.4 多源数据接入
+
+展示内容：
+
+- 可见光图片、红外 TIF、防洪 TIF/点云资源
+- 每类资源的接入状态、大小、采集时间、空间位置
+- 存储路径：MinIO/S3 URL
+
+界面元素：
+
+- 资源卡片网格
+- 上传/接入进度条
+- 地图上出现采集点
+- 底部数据资源表追加行
+
+### 5.5 数据预处理
+
+展示内容：
+
+- 图像解码、抽帧、尺寸归一、去噪、质量检查
+- 红外温度矩阵解析、温度阈值提取
+- TIF/点云坐标解析、坐标系统一、体积变化指标提取
+
+界面元素：
+
+- 预处理步骤清单逐项打勾
+- 质量指标：清晰度、坐标有效性、时间同步状态、资源可读性
+- 异常时展示失败原因和可重试入口
+
+### 5.6 AI 推理分析
+
+展示内容：
+
+- 视觉模型：目标检测、分割、变化检测
+- 红外模型：设备发热识别
+- 点云/TIF 模型：防洪点体积变化分析
+- 每个模型的状态、耗时、结果数量、平均置信度
+
+界面元素：
+
+- 模型推理矩阵：
+
+```text
+┌────────────────────┬──────────┬──────────┬────────────┐
+│ 模型组             │ 状态     │ 结果数   │ 平均置信度 │
+├────────────────────┼──────────┼──────────┼────────────┤
+│ vision-detector    │ 已完成   │ 12       │ 0.90       │
+│ thermal-analyzer   │ 已完成   │ 3        │ 0.90       │
+│ pointcloud-analyzer│ 已完成   │ 3        │ 0.93       │
+└────────────────────┴──────────┴──────────┴────────────┘
+```
+
+- 识别结果卡片：场景、类别、置信度、模型版本、资源证据
+- 置信度分布条形图
+
+### 5.7 GIS 规则判定
+
+展示内容：
+
+- 线路 100 米范围内识别
+- 防护网内人员入侵
+- 接触网/线缆 ROI 命中
+- 防洪点体积变化阈值命中
+- 设备温度阈值命中
+- 豁免区与基线库过滤情况
+
+界面元素：
+
+- GIS 区域叠加规则缓冲区
+- 命中点位高亮闪烁
+- 规则命中列表展示每条规则的输入、阈值、结果
+
+规则命中展示示例：
+
+```text
+塔吊 / 高风险
+- 距线路：72.5m
+- 阈值：<= 100m
+- 置信度：0.91
+- 规则：线路100米范围内 + 置信度达标
+```
+
+### 5.8 告警生成
+
+展示内容：
+
+- 告警 ID、场景、类别、等级、置信度、状态
+- 告警证据：资源路径、AI 结果、规则命中
+- 告警分级统计：严重、高、中、低
+
+界面元素：
+
+- 告警卡片从 AI 结果区流入告警中心
+- GIS 告警点位按等级着色
+- 告警中心表格实时追加行
+
+### 5.9 工单派发
+
+展示内容：
+
+- 工单 ID、关联告警、处置人、派发状态、更新时间
+- 自动派发结果
+- 工单与告警的关联关系
+
+界面元素：
+
+- 工单流转泳道：
+
+```text
+告警生成 → 工单创建 → 派发复核 → 现场处置 → 复核关闭
+```
+
+- 工单列表实时增加
+- 待处置数量增加
+- 地图点位从“告警点”增加“工单状态标识”
+
+### 5.10 工单闭环
+
+展示内容：
+
+- 工单状态从 `created/processing` 变更为 `closed`
+- 告警状态同步关闭
+- 处置结果、处置说明、操作人、更新时间
+
+界面元素：
+
+- 工单卡片状态变更为“已闭环”
+- 统计卡片从待处置转入已闭环
+- 事件流追加 `workorder.closed`
+- 地图点位状态颜色变化
+
+### 5.11 样本回流
+
+展示内容：
+
+- 高价值样本数量
+- 待标注样本数量
+- 低置信度/误报/复核关闭样本归档
+- 模型版本影响范围
+
+界面元素：
+
+- 样本队列卡片
+- 模型版本旁展示“新增样本数”
+- 完成汇总中展示样本闭环指标
+
+### 5.12 完成汇总
+
+展示内容：
+
+- 总耗时
+- 任务、资源、分析任务、AI 结果、告警、工单、样本数量
+- 各阶段耗时
+- 成功/失败/重试次数
+
+界面元素：
+
+- 总览指标卡
+- 阶段耗时条
+- 最终 GIS 态势
+- 运行结果摘要
+
+## 6. 事件模型设计
+
+全链路可视化应以事件驱动。后端每完成一个阶段动作或子动作，就发布一条事件。前端只关心事件流和运行快照，不直接推断后端执行过程。
+
+### 6.1 运行实例
+
+建议新增 `demo_runs` 表：
+
+```sql
+create table demo_runs (
+    id varchar(64) primary key,
+    status varchar(32) not null,
+    current_step varchar(64),
+    progress int not null default 0,
+    task_id varchar(64),
+    summary jsonb not null default '{}'::jsonb,
+    started_at timestamptz not null,
+    completed_at timestamptz,
+    error_message text
+);
+```
+
+### 6.2 阶段事件
+
+建议新增 `demo_run_events` 表：
+
+```sql
+create table demo_run_events (
+    id varchar(64) primary key,
+    run_id varchar(64) not null references demo_runs(id),
+    step_key varchar(64) not null,
+    step_name varchar(128) not null,
+    status varchar(32) not null,
+    progress int not null,
+    title varchar(256) not null,
+    message text,
+    entity_type varchar(64),
+    entity_id varchar(64),
+    metrics jsonb not null default '{}'::jsonb,
+    visual_payload jsonb not null default '{}'::jsonb,
+    created_at timestamptz not null
+);
+```
+
+### 6.3 事件结构
+
+```json
+{
+  "event_id": "event-001",
+  "run_id": "run-001",
+  "step_key": "ai.inferencing",
+  "step_name": "AI推理分析",
+  "status": "running",
+  "progress": 58,
+  "title": "视觉模型推理完成",
+  "message": "vision-detector 生成 12 条识别结果",
+  "entity_type": "analysis_job",
+  "entity_id": "job-001",
+  "metrics": {
+    "result_count": 12,
+    "avg_confidence": 0.9,
+    "elapsed_ms": 1260
+  },
+  "visual_payload": {
+    "type": "inference_matrix",
+    "model_group": "vision-detector",
+    "status": "completed",
+    "items": [
+      {
+        "scene": "塔吊",
+        "category": "塔吊",
+        "confidence": 0.91,
+        "mileage": "K123+456"
+      }
+    ]
+  },
+  "created_at": "2026-07-21T16:20:00+08:00"
+}
+```
+
+## 7. 接口设计
+
+### 7.1 创建运行实例
+
+```http
+POST /api/v1/demo/runs
+```
+
+响应：
+
+```json
+{
+  "run_id": "run-xxx",
+  "status": "running",
+  "event_stream_url": "/api/v1/demo/runs/run-xxx/events"
+}
+```
+
+### 7.2 查询运行快照
+
+```http
+GET /api/v1/demo/runs/{run_id}
+```
+
+返回当前运行状态、阶段列表、最新统计、关联业务实体。
+
+### 7.3 订阅运行事件
+
+```http
+GET /api/v1/demo/runs/{run_id}/events
+Accept: text/event-stream
+```
+
+采用 SSE 的理由：
+
+- 当前场景主要是服务端向前端推送事件，SSE 足够稳定。
+- 浏览器原生支持 `EventSource`。
+- 相比 WebSocket，实现成本更低，便于后续通过 Nginx 代理。
+- 断线后可通过 `Last-Event-ID` 或快照接口恢复。
+
+### 7.4 查询历史事件
+
+```http
+GET /api/v1/demo/runs/{run_id}/events/history
+```
+
+用于页面刷新后的恢复和运行记录回放。
+
+### 7.5 取消运行
+
+```http
+POST /api/v1/demo/runs/{run_id}/cancel
+```
+
+用于长耗时阶段或异常情况下终止示例运行。
+
+## 8. 后端实现设计
+
+### 8.1 新增服务
+
+建议新增以下后端模块：
+
+```text
+platform/backend/src/main/java/com/ai/trackwalker/demo/
+  DemoRunController.java
+  DemoRunService.java
+  DemoRunEventPublisher.java
+  DemoRunEvent.java
+  DemoStep.java
+```
+
+职责：
+
+- `DemoRunController`：提供运行创建、查询、事件订阅、取消接口。
+- `DemoRunService`：负责编排全链路阶段执行。
+- `DemoRunEventPublisher`：负责事件入库、Kafka 发布、SSE 推送。
+- `DemoStep`：定义阶段编码、名称、权重、默认进度。
+
+### 8.2 编排逻辑
+
+运行实例创建后，后端按顺序执行阶段：
+
+```text
+createRun
+  -> emit initializing
+  -> createTask
+  -> dispatchUav
+  -> ingestResources
+  -> preprocessResources
+  -> createAnalysisJob
+  -> runAiInference
+  -> evaluateRules
+  -> generateAlarms
+  -> dispatchWorkorders
+  -> closeWorkorders
+  -> feedbackSamples
+  -> completeRun
+```
+
+每个阶段遵循统一模板：
+
+```text
+emit step.started
+执行业务动作
+emit step.progress
+写入阶段产物
+emit step.completed
+```
+
+异常处理：
+
+- 阶段失败时，写入 `step.failed` 事件。
+- `demo_runs.status` 更新为 `failed`。
+- 前端展示失败阶段、错误详情和重试入口。
+- 可恢复阶段支持从最近成功阶段继续执行。
+
+### 8.3 与现有服务的关系
+
+现有 `PlatformService.runDemo()` 可以保留为兼容接口，但新的可视化运行应调用 `DemoRunService`。
+
+建议逐步将现有同步逻辑拆分为可复用方法：
+
+- `createTask`
+- `completeResources`
+- `createAnalysisJob`
+- `runAnalysis`
+- `listAlarms`
+- `listWorkOrders`
+- `workOrderCallback`
+
+可视化运行编排只负责阶段组织和事件发布，不重复实现业务逻辑。
+
+## 9. 前端实现设计
+
+### 9.1 页面结构
+
+建议新增全链路运行组件：
+
+```text
+frontend/src/components/demo-run/
+  FullChainRunConsole.vue
+  RunHeader.vue
+  RunStageTimeline.vue
+  RunGisPanel.vue
+  RunCurrentStagePanel.vue
+  RunEventStream.vue
+  RunResourcePanel.vue
+  RunInferencePanel.vue
+  RunRulePanel.vue
+  RunAlarmPanel.vue
+  RunWorkorderPanel.vue
+  RunSummaryPanel.vue
+```
+
+### 9.2 状态管理
+
+建议新增组合式逻辑：
+
+```text
+frontend/src/composables/useDemoRun.ts
+```
+
+职责：
+
+- 创建运行实例。
+- 建立 SSE 连接。
+- 维护运行状态、阶段状态、事件列表。
+- 将事件转换为 GIS marker、资源卡片、AI 结果、工单列表。
+- 断线后通过快照接口恢复。
+
+### 9.3 阶段时间轴
+
+阶段状态样式：
+
+| 状态 | 样式 |
+| --- | --- |
+| 未开始 | 灰色节点 |
+| 执行中 | 蓝色节点 + 动态进度环 |
+| 成功 | 绿色节点 + 对勾 |
+| 失败 | 红色节点 + 错误标记 |
+| 跳过 | 浅灰节点 + 跳过标识 |
+| 重试中 | 黄色节点 + 旋转状态 |
+
+### 9.4 GIS 面板
+
+GIS 面板需要从事件中持续更新以下图层：
+
+- 线路中心线
+- 无人机航线
+- 防护区
+- 重点防洪点
+- 资源采集点
+- AI 识别点
+- 规则命中点
+- 告警点
+- 工单点
+
+图层状态：
+
+- 数据接入阶段：显示资源采集点。
+- AI 推理阶段：显示 AI 识别点。
+- GIS 规则阶段：显示规则缓冲区和命中点。
+- 告警阶段：按告警等级着色。
+- 工单阶段：点位增加工单状态标识。
+- 闭环阶段：已闭环点位颜色变为绿色或打勾。
+
+### 9.5 当前阶段详情
+
+右侧详情面板根据当前阶段动态展示：
+
+- 任务阶段：任务 ID、线路、里程、优先级。
+- 数据阶段：资源类型、数量、采集时间、存储路径。
+- 预处理阶段：步骤清单、质量指标。
+- AI 阶段：模型组、版本、结果数、置信度。
+- 规则阶段：规则命中原因、阈值、输入值。
+- 告警阶段：告警等级、证据链。
+- 工单阶段：派发人、状态、处置结果。
+- 样本阶段：样本数量、标注状态、模型版本。
+
+### 9.6 事件流
+
+事件流用于保留完整操作记录：
+
+```text
+[16:20:01] 运行初始化完成
+[16:20:02] 巡检任务 task-xxx 创建成功
+[16:20:04] 航线任务已下发
+[16:20:06] 接入可见光资源 visible-001.jpg
+[16:20:08] vision-detector 生成 12 条结果
+[16:20:09] 塔吊命中线路100米范围规则
+[16:20:10] 生成高风险告警 alarm-xxx
+[16:20:11] 工单 wo-xxx 已派发
+[16:20:14] 工单 wo-xxx 已闭环
+```
+
+支持筛选：
+
+- 全部
+- 当前阶段
+- 异常
+- 告警
+- 工单
+- 模型
+
+## 10. 前后端交互流程
+
+```mermaid
+sequenceDiagram
+    participant UI as 前端运行看板
+    participant API as Spring Boot API
+    participant Demo as DemoRunService
+    participant DB as PostgreSQL/PostGIS
+    participant AI as FastAPI AI服务
+    participant Kafka as Kafka事件总线
+
+    UI->>API: POST /api/v1/demo/runs
+    API->>DB: 创建 demo_runs
+    API-->>UI: 返回 run_id 和事件流地址
+    UI->>API: GET /api/v1/demo/runs/{run_id}/events
+    API->>Demo: 异步执行全链路阶段
+    Demo->>DB: 创建巡检任务
+    Demo->>Kafka: 发布 task.created
+    API-->>UI: SSE 推送 task.created
+    Demo->>DB: 写入资源
+    API-->>UI: SSE 推送 resource.ingesting
+    Demo->>AI: 调用视觉/点云推理
+    AI-->>Demo: 返回 AI 结果
+    Demo->>DB: 写入 AI 结果、告警、工单
+    API-->>UI: SSE 推送 AI、规则、告警、工单事件
+    Demo->>DB: 更新 demo_runs completed
+    API-->>UI: SSE 推送 run.completed
+```
+
+## 11. 运行快照结构
+
+前端刷新或断线恢复时，使用运行快照重建页面。
+
+```json
+{
+  "run_id": "run-xxx",
+  "status": "running",
+  "progress": 68,
+  "current_step": "rule.evaluating",
+  "started_at": "2026-07-21T16:20:00+08:00",
+  "steps": [
+    {
+      "key": "task.created",
+      "name": "巡检任务创建",
+      "status": "completed",
+      "progress": 100,
+      "elapsed_ms": 320
+    }
+  ],
+  "entities": {
+    "task_id": "task-xxx",
+    "resource_ids": ["res-001", "res-002"],
+    "analysis_job_id": "job-xxx",
+    "alarm_ids": ["alarm-001"],
+    "workorder_ids": ["wo-001"]
+  },
+  "metrics": {
+    "tasks": 1,
+    "resources": 3,
+    "ai_results": 18,
+    "alarms": 18,
+    "workorders": 18,
+    "closed_workorders": 0
+  }
+}
+```
+
+## 12. 视觉设计规范
+
+页面应保持巡检平台的业务工作台气质，避免营销式大图和装饰性内容。视觉重点放在信息密度、状态可读性和空间关系上。
+
+设计要求：
+
+- 颜色含义固定：蓝色表示执行中，绿色表示完成，橙色表示待处理，红色表示严重/失败，灰色表示未开始。
+- 同一业务实体在不同区域保持同一 ID 和同一颜色标识。
+- 地图点位数量较多时自动聚合，悬浮展示详情。
+- 阶段详情区域不滚动整页，内部列表独立滚动。
+- 重要事件进入事件流顶部，并短暂高亮。
+- 失败事件必须显式显示失败原因和所在阶段。
+- 全链路完成后，顶部运行态切换为完成态，不再显示加载动画。
+
+## 13. 测试方案
+
+### 13.1 后端测试
+
+单元测试：
+
+- 阶段定义完整性测试。
+- 事件发布顺序测试。
+- 事件 payload schema 测试。
+- 失败阶段状态更新测试。
+
+集成测试：
+
+- `POST /api/v1/demo/runs` 能创建运行实例。
+- SSE 能收到 `run.initializing` 到 `run.completed` 的完整事件。
+- 运行完成后任务、资源、AI 结果、告警、工单数量正确。
+- 断线后通过快照接口能恢复运行状态。
+
+### 13.2 前端测试
+
+组件测试：
+
+- 阶段时间轴状态渲染。
+- GIS marker 渲染。
+- 事件流追加和筛选。
+- 当前阶段详情切换。
+- 工单闭环状态更新。
+
+浏览器验证：
+
+- 点击“运行全链路示例”后，运行看板打开。
+- 每个阶段至少出现一次可视化变化。
+- 运行过程中按钮禁用并显示运行状态。
+- 运行完成后统计值与后端返回一致。
+- 失败事件能显示错误态。
+
+### 13.3 冒烟测试
+
+现有 `scripts/smoke_test.ps1` 需要扩展：
+
+- 创建 demo run。
+- 等待 SSE 或轮询快照直到 completed。
+- 校验阶段数量。
+- 校验关键阶段均有事件。
+- 校验最终任务、资源、AI 结果、告警、工单数据。
+
+## 14. 分阶段实施计划
+
+### 第一阶段：事件与运行实例
+
+- 新增 `demo_runs`、`demo_run_events` 表。
+- 新增 `DemoRunService` 和事件发布器。
+- 新增运行创建、快照查询、历史事件接口。
+- 保留原同步接口兼容现有调用。
+
+交付结果：
+
+- 后端能创建运行实例并记录阶段事件。
+- 不要求前端实时展示，先可通过接口查看事件。
+
+### 第二阶段：SSE 实时推送
+
+- 新增 `/api/v1/demo/runs/{run_id}/events`。
+- 后端阶段执行时实时推送事件。
+- 支持运行结束、失败、取消事件。
+- 支持断线恢复。
+
+交付结果：
+
+- 前端可实时收到阶段事件。
+- 事件流不依赖手动刷新。
+
+### 第三阶段：前端运行看板
+
+- 新增全链路运行看板组件。
+- 接入运行创建和 SSE。
+- 实现阶段时间轴、运行状态、事件流。
+- 原“运行全链路示例”按钮改为打开运行看板并启动运行。
+
+交付结果：
+
+- 每个阶段有可见状态。
+- 能看到事件逐步推进。
+
+### 第四阶段：阶段专属可视化
+
+- GIS 图层动态更新。
+- 数据资源卡片动态追加。
+- AI 推理矩阵动态更新。
+- 规则命中面板动态展示。
+- 告警与工单流转动态展示。
+- 样本回流和完成汇总展示。
+
+交付结果：
+
+- 每个业务环节都有独立可视化表现。
+- 执行过程具备演进感和可解释性。
+
+### 第五阶段：测试与稳定性
+
+- 扩展后端测试和冒烟脚本。
+- 增加前端浏览器验证。
+- 增加失败、重试、取消、断线恢复测试。
+- 优化大数据量下的事件裁剪和地图点聚合。
+
+交付结果：
+
+- 全链路可视化稳定可用。
+- 页面刷新和异常场景可恢复。
+
+## 15. 验收标准
+
+功能验收：
+
+- 点击“运行全链路示例”后，能看到运行实例编号和总进度。
+- 12 个阶段全部在时间轴中展示。
+- 每个阶段执行时，页面都有对应的可视化变化。
+- 执行过程中事件流持续追加事件。
+- GIS 区域能展示航线、资源点、AI 识别点、告警点和工单状态。
+- AI 推理阶段能展示模型组、结果数量、置信度。
+- GIS 规则阶段能展示规则命中原因。
+- 告警阶段能展示告警等级和证据。
+- 工单阶段能展示派发、处置、闭环状态。
+- 运行完成后展示汇总指标和阶段耗时。
+
+稳定性验收：
+
+- 后端异常时前端显示失败阶段和失败原因。
+- 页面刷新后能恢复当前运行状态。
+- SSE 断开后能自动重连或通过快照恢复。
+- 重复点击运行不会产生不可控的并发状态。
+- 运行历史可查询，便于复盘。
+
+## 16. 后续扩展
+
+- 接入真实无人机航迹点，替换当前示意航线。
+- 接入真实影像缩略图、红外热力图、点云剖面图。
+- 接入 MapLibre 地图底图，实现真实地理坐标渲染。
+- 接入 WebSocket，用于双向控制无人机任务、暂停和重试阶段。
+- 接入 Grafana 或 Prometheus 指标，展示阶段耗时和服务延迟。
+- 接入模型评估指标，展示样本回流对模型版本的影响。
diff --git a/frontend/nginx.conf b/frontend/nginx.conf
index d50c2db..5f03205 100644
--- a/frontend/nginx.conf
+++ b/frontend/nginx.conf
@@ -13,6 +13,9 @@ server {
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_buffering off;
+    proxy_cache off;
+    proxy_read_timeout 3600s;
   }
 
   location /actuator/ {
diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index b219f20..5e45da9 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -5,8 +5,12 @@
         <h1>铁路无人机智能巡检平台</h1>
         <p>任务接入、AI识别、GIS规则、告警工单、样本闭环</p>
       </div>
-      <el-button type="primary" :loading="running" @click="handleRunDemo">运行全链路示例</el-button>
+      <div class="header-actions">
+        <el-button v-if="running && activeRunId" plain @click="handleCancelRun">取消运行</el-button>
+        <el-button type="primary" :loading="running" @click="handleRunDemo">运行全链路示例</el-button>
+      </div>
     </el-header>
+
     <el-main>
       <section class="stats">
         <el-card v-for="item in statCards" :key="item.label" shadow="never">
@@ -15,6 +19,152 @@
         </el-card>
       </section>
 
+      <section v-if="runConsoleVisible" class="run-console">
+        <el-card shadow="never">
+          <template #header>
+            <div class="card-title">
+              <span>全链路运行看板</span>
+              <small>{{ activeRunId || "等待运行" }} · {{ currentRunTitle }}</small>
+            </div>
+          </template>
+
+          <div class="run-header">
+            <div>
+              <strong>{{ runStatusLabel }}</strong>
+              <span>{{ currentRunMessage }}</span>
+            </div>
+            <el-progress :percentage="runProgress" :stroke-width="12" :status="runProgressStatus" />
+          </div>
+
+          <div class="run-timeline">
+            <div
+              v-for="stage in demoStages"
+              :key="stage.key"
+              class="run-stage"
+              :class="`stage-${stageStatus(stage.key)}`"
+            >
+              <i>{{ stageIndex(stage.key) }}</i>
+              <span>{{ stage.name }}</span>
+            </div>
+          </div>
+
+          <div class="run-board">
+            <div class="run-map">
+              <svg class="track-layer" viewBox="0 0 1000 420" role="img" aria-label="全链路运行空间态势">
+                <path class="corridor corridor-outer" d="M80 305 C245 225 375 245 515 180 C665 112 785 126 925 68" />
+                <path class="corridor corridor-inner" d="M110 328 C275 248 395 268 535 203 C685 135 805 149 945 91" />
+                <path class="rail-shadow" d="M78 278 C250 198 380 218 520 153 C670 85 795 96 934 42" />
+                <path class="rail-line" d="M78 278 C250 198 380 218 520 153 C670 85 795 96 934 42" />
+                <path class="wire-line" d="M88 235 C258 165 395 186 536 122 C682 57 808 68 938 18" />
+                <polygon class="flood-zone" points="590,176 690,128 794,143 820,232 700,268 616,238" />
+                <polygon class="protected-zone" points="205,250 390,214 434,284 253,326" />
+                <line class="grid-line" x1="92" y1="340" x2="930" y2="74" />
+                <text class="mileage-label" x="76" y="366">K123+000</text>
+                <text class="mileage-label" x="850" y="108">K130+000</text>
+              </svg>
+
+              <div v-if="routeProgress > 0" class="uav-marker" :style="{ left: `${uavPosition.x}%`, top: `${uavPosition.y}%` }">
+                <span>{{ routeProgress }}%</span>
+              </div>
+
+              <div
+                v-for="marker in runMarkers"
+                :key="marker.id"
+                class="run-marker"
+                :class="`severity-${marker.severity}`"
+                :style="{ left: `${marker.x}%`, top: `${marker.y}%` }"
+              >
+                <span>{{ marker.index }}</span>
+                <div class="marker-card">
+                  <strong>{{ marker.scene }}</strong>
+                  <em>{{ marker.mileage }} / {{ marker.distance || "线路邻近" }}</em>
+                  <small>{{ severityLabel(marker.severity) }} {{ statusLabel(marker.status) }}</small>
+                </div>
+              </div>
+
+              <div class="map-legend">
+                <span><i class="legend-rail"></i>线路中心线</span>
+                <span><i class="legend-protected"></i>防护区</span>
+                <span><i class="legend-flood"></i>重点防洪点</span>
+                <span><i class="legend-alarm"></i>阶段点位</span>
+              </div>
+            </div>
+
+            <aside class="stage-detail">
+              <div class="stage-title">
+                <strong>{{ currentStageName }}</strong>
+                <el-tag :type="stageTag(currentEvent?.status)" effect="plain">{{ eventStatusLabel(currentEvent?.status) }}</el-tag>
+              </div>
+
+              <div class="metric-grid">
+                <div v-for="metric in currentMetrics" :key="metric.label">
+                  <strong>{{ metric.value }}</strong>
+                  <span>{{ metric.label }}</span>
+                </div>
+              </div>
+
+              <div v-if="currentVisual.models?.length" class="visual-block">
+                <h3>模型推理矩阵</h3>
+                <div v-for="model in currentVisual.models" :key="model.model_group" class="visual-row">
+                  <span>{{ model.model_group }}</span>
+                  <em>{{ model.status }} · {{ model.result_count }} 条 · {{ model.avg_confidence }}</em>
+                </div>
+              </div>
+
+              <div v-if="currentVisual.checks?.length" class="visual-block">
+                <h3>预处理检查</h3>
+                <div v-for="check in currentVisual.checks" :key="check.name" class="visual-row">
+                  <span>{{ check.name }}</span>
+                  <em>{{ check.status }} · {{ check.quality }}</em>
+                </div>
+              </div>
+
+              <div v-if="currentVisual.rule_hits?.length" class="visual-block">
+                <h3>规则命中</h3>
+                <div v-for="hit in currentVisual.rule_hits" :key="hit.alarm_id" class="visual-row">
+                  <span>{{ hit.scene }}</span>
+                  <em>{{ formatList(hit.rule_hits) }}</em>
+                </div>
+              </div>
+
+              <div v-if="currentVisual.workorders?.length" class="visual-block">
+                <h3>工单流转</h3>
+                <div v-for="wo in currentVisual.workorders" :key="wo.workorder_id" class="visual-row">
+                  <span>{{ wo.workorder_id }}</span>
+                  <em>{{ wo.scene }} · {{ statusLabel(wo.status) }}</em>
+                </div>
+              </div>
+
+              <div v-if="currentVisual.summary" class="visual-block">
+                <h3>完成汇总</h3>
+                <div v-for="item in objectEntries(currentVisual.summary)" :key="item.label" class="visual-row">
+                  <span>{{ item.label }}</span>
+                  <em>{{ item.value }}</em>
+                </div>
+              </div>
+            </aside>
+          </div>
+
+          <div class="run-bottom">
+            <div class="event-stream">
+              <div class="stream-title">事件流</div>
+              <div v-for="event in recentRunEvents" :key="event.event_id" class="event-line" :class="`event-${event.status}`">
+                <time>{{ formatTime(event.created_at) }}</time>
+                <strong>{{ event.step_name }}</strong>
+                <span>{{ event.title }}</span>
+              </div>
+            </div>
+
+            <div class="run-summary">
+              <div v-for="item in runSummaryItems" :key="item.label">
+                <strong>{{ item.value }}</strong>
+                <span>{{ item.label }}</span>
+              </div>
+            </div>
+          </div>
+        </el-card>
+      </section>
+
       <section class="grid">
         <el-card shadow="never">
           <template #header>巡检任务</template>
@@ -155,9 +305,20 @@
 </template>
 
 <script setup lang="ts">
-import { computed, onMounted, ref } from "vue";
+import { computed, onBeforeUnmount, onMounted, ref } from "vue";
 import { ElMessage } from "element-plus";
-import { alarms, closeWorkorder, models, overview, runDemo, tasks, workorders } from "./services/api";
+import {
+  alarms,
+  cancelDemoRun,
+  closeWorkorder,
+  demoEventsUrl,
+  demoRunSnapshot,
+  models,
+  overview,
+  startDemoRun,
+  tasks,
+  workorders
+} from "./services/api";
 
 type Row = Record<string, any>;
 
@@ -179,6 +340,12 @@ const alarmRows = ref<Row[]>([]);
 const workorderRows = ref<Row[]>([]);
 const modelRows = ref<Row[]>([]);
 const running = ref(false);
+const runConsoleVisible = ref(false);
+const activeRunId = ref("");
+const demoEvents = ref<Row[]>([]);
+const demoRun = ref<Row | null>(null);
+
+let demoEventSource: EventSource | null = null;
 
 const labels: Record<string, string> = {
   tasks: "巡检任务",
@@ -192,9 +359,103 @@ const labels: Record<string, string> = {
   exemptions: "豁免区"
 };
 
+const demoStages = [
+  { key: "run.initializing", name: "运行初始化" },
+  { key: "task.created", name: "巡检任务创建" },
+  { key: "uav.dispatching", name: "航线任务下发" },
+  { key: "resource.ingesting", name: "多源数据接入" },
+  { key: "preprocess.running", name: "数据预处理" },
+  { key: "ai.inferencing", name: "AI推理分析" },
+  { key: "rule.evaluating", name: "GIS规则判定" },
+  { key: "alarm.generating", name: "告警生成" },
+  { key: "workorder.dispatching", name: "工单派发" },
+  { key: "workorder.closing", name: "工单闭环" },
+  { key: "sample.feedback", name: "样本回流" },
+  { key: "run.completed", name: "完成汇总" }
+];
+
 const statCards = computed(() => Object.entries(labels).map(([key, label]) => ({ label, value: stats.value[key] ?? 0 })));
 
 const recentWorkorders = computed(() => workorderRows.value.slice(0, 8));
+const currentEvent = computed(() => demoEvents.value[demoEvents.value.length - 1] ?? null);
+const currentVisual = computed<Row>(() => safeObject(currentEvent.value?.visual_payload));
+const recentRunEvents = computed(() => [...demoEvents.value].reverse().slice(0, 14));
+const runProgress = computed(() => Number(currentEvent.value?.progress ?? demoRun.value?.progress ?? 0));
+const currentRunTitle = computed(() => currentEvent.value?.title ?? "等待启动");
+const currentRunMessage = computed(() => currentEvent.value?.message ?? "点击运行后将实时展示任务、数据、AI、规则、告警和工单闭环过程");
+const currentStageName = computed(() => currentEvent.value?.step_name ?? "全链路阶段详情");
+
+const runStatusLabel = computed(() => {
+  const status = currentEvent.value?.status ?? demoRun.value?.status ?? "pending";
+  if (currentEvent.value?.step_key === "run.completed") {
+    return "运行完成";
+  }
+  return eventStatusLabel(status);
+});
+
+const runProgressStatus = computed<"" | "success" | "exception" | "warning">(() => {
+  const status = currentEvent.value?.status;
+  if (status === "failed") {
+    return "exception";
+  }
+  if (status === "cancelled") {
+    return "warning";
+  }
+  if (currentEvent.value?.step_key === "run.completed") {
+    return "success";
+  }
+  return "";
+});
+
+const currentMetrics = computed(() => objectEntries(safeObject(currentEvent.value?.metrics)).slice(0, 8));
+
+const runSummaryItems = computed(() => {
+  const summary = safeObject(currentVisual.value.summary ?? demoRun.value?.summary);
+  const entries = objectEntries(summary);
+  if (entries.length > 0) {
+    return entries.slice(0, 8);
+  }
+  return [
+    { label: "阶段事件", value: demoEvents.value.length },
+    { label: "总进度", value: `${runProgress.value}%` },
+    { label: "当前阶段", value: currentStageName.value }
+  ];
+});
+
+const routeProgress = computed(() => {
+  const payload = latestPayloadWith("route_progress");
+  return Number(payload?.route_progress ?? 0);
+});
+
+const uavPosition = computed(() => {
+  const progress = routeProgress.value / 100;
+  return {
+    x: clamp(8 + progress * 84, 5, 94),
+    y: clamp(70 - progress * 54, 8, 88)
+  };
+});
+
+const runMarkers = computed<GisMarker[]>(() => {
+  const markerPayload = latestPayloadWith("markers");
+  if (Array.isArray(markerPayload?.markers) && markerPayload.markers.length > 0) {
+    return markerPayload.markers.slice(0, 18).map((marker: Row, index: number) => normalizeMarker(marker, index));
+  }
+  const resourcePayload = latestPayloadWith("resources");
+  if (Array.isArray(resourcePayload?.resources) && resourcePayload.resources.length > 0) {
+    return resourcePayload.resources.map((resource: Row, index: number) => ({
+      id: String(resource.resource_id || `${resource.resource_type}-${index}`),
+      index: index + 1,
+      scene: resourceLabel(resource.resource_type),
+      mileage: "采集点",
+      distance: resource.status,
+      severity: "resource",
+      status: resource.status,
+      x: Number(resource.x ?? 20 + index * 20),
+      y: Number(resource.y ?? 60 - index * 8)
+    }));
+  }
+  return gisMarkers.value;
+});
 
 const activeLineLabel = computed(() => {
   const firstTask = taskRows.value[0];
@@ -262,22 +523,131 @@ async function refresh() {
 }
 
 async function handleRunDemo() {
+  closeDemoEventSource();
   running.value = true;
+  runConsoleVisible.value = true;
+  demoEvents.value = [];
+  demoRun.value = null;
   try {
-    await runDemo();
-    await refresh();
-    ElMessage.success("全链路示例已完成");
-  } finally {
+    const run = await startDemoRun();
+    activeRunId.value = run.run_id;
+    demoRun.value = run;
+    connectDemoEvents(run.run_id);
+    ElMessage.success("全链路示例已启动");
+  } catch (error) {
     running.value = false;
+    ElMessage.error("全链路示例启动失败");
   }
 }
 
+async function handleCancelRun() {
+  if (!activeRunId.value) {
+    return;
+  }
+  await cancelDemoRun(activeRunId.value);
+  ElMessage.warning("已提交取消请求");
+}
+
 async function handleCloseWorkOrder(row: Row) {
   await closeWorkorder(String(row.alarm_id));
   await refresh();
   ElMessage.success("工单已闭环");
 }
 
+function connectDemoEvents(runId: string) {
+  demoEventSource = new EventSource(demoEventsUrl(runId));
+  demoEventSource.addEventListener("demo-run-event", async (event: Event) => {
+    const message = event as MessageEvent;
+    const data = safeObject(message.data);
+    upsertEvent(data);
+    const terminal = ["run.completed", "run.failed", "run.cancelled"].includes(String(data.step_key));
+    if (terminal) {
+      running.value = false;
+      closeDemoEventSource();
+      demoRun.value = await demoRunSnapshot(runId);
+      await refresh();
+      if (data.step_key === "run.completed") {
+        ElMessage.success("全链路运行完成");
+      }
+      if (data.step_key === "run.failed") {
+        ElMessage.error("全链路运行失败");
+      }
+    }
+  });
+  demoEventSource.onerror = async () => {
+    if (!activeRunId.value || !running.value) {
+      return;
+    }
+    try {
+      const snapshot = await demoRunSnapshot(activeRunId.value);
+      demoRun.value = snapshot;
+      const status = String(snapshot.status);
+      if (["completed", "failed", "cancelled"].includes(status)) {
+        running.value = false;
+        closeDemoEventSource();
+        await refresh();
+      }
+    } catch {
+      // EventSource will retry automatically.
+    }
+  };
+}
+
+function closeDemoEventSource() {
+  if (demoEventSource) {
+    demoEventSource.close();
+    demoEventSource = null;
+  }
+}
+
+function upsertEvent(event: Row) {
+  if (!event.event_id) {
+    return;
+  }
+  const index = demoEvents.value.findIndex((item) => item.event_id === event.event_id);
+  if (index >= 0) {
+    demoEvents.value[index] = event;
+  } else {
+    demoEvents.value.push(event);
+  }
+}
+
+function latestPayloadWith(field: string) {
+  for (let i = demoEvents.value.length - 1; i >= 0; i--) {
+    const payload = safeObject(demoEvents.value[i].visual_payload);
+    if (payload[field] !== undefined) {
+      return payload;
+    }
+  }
+  return {};
+}
+
+function stageStatus(key: string) {
+  const events = demoEvents.value.filter((event) => event.step_key === key);
+  if (events.length === 0) {
+    return "pending";
+  }
+  return String(events[events.length - 1].status);
+}
+
+function stageIndex(key: string) {
+  return demoStages.findIndex((stage) => stage.key === key) + 1;
+}
+
+function normalizeMarker(marker: Row, index: number): GisMarker {
+  return {
+    id: String(marker.id ?? marker.alarm_id ?? index),
+    index: index + 1,
+    scene: String(marker.scene ?? "-"),
+    mileage: String(marker.mileage ?? "K123+456"),
+    distance: String(marker.distance ?? marker.distance_to_track_m ?? ""),
+    severity: String(marker.severity ?? "medium"),
+    status: String(marker.status ?? "pending"),
+    x: Number(marker.x ?? 20 + index * 5),
+    y: Number(marker.y ?? 60 - index * 4)
+  };
+}
+
 function safeObject(value: unknown): Row {
   if (!value) {
     return {};
@@ -292,6 +662,42 @@ function safeObject(value: unknown): Row {
   }
 }
 
+function objectEntries(value: unknown) {
+  const objectValue = safeObject(value);
+  return Object.entries(objectValue).map(([label, rawValue]) => ({
+    label,
+    value: formatValue(rawValue)
+  }));
+}
+
+function formatValue(value: unknown) {
+  if (Array.isArray(value)) {
+    return `${value.length} 项`;
+  }
+  if (value && typeof value === "object") {
+    return Object.entries(value as Row).map(([key, item]) => `${key}:${item}`).join(" ");
+  }
+  return String(value ?? "-");
+}
+
+function formatList(value: unknown) {
+  if (Array.isArray(value)) {
+    return value.join(" / ");
+  }
+  return String(value ?? "-");
+}
+
+function formatTime(value: unknown) {
+  if (!value) {
+    return "--:--:--";
+  }
+  const date = new Date(String(value));
+  if (Number.isNaN(date.getTime())) {
+    return String(value).slice(11, 19);
+  }
+  return date.toLocaleTimeString("zh-CN", { hour12: false });
+}
+
 function clamp(value: number, min: number, max: number) {
   return Math.min(Math.max(value, min), max);
 }
@@ -301,7 +707,8 @@ function severityLabel(value: unknown) {
     critical: "严重",
     high: "高",
     medium: "中",
-    low: "低"
+    low: "低",
+    resource: "资源"
   };
   return labelsBySeverity[String(value)] ?? String(value ?? "-");
 }
@@ -311,7 +718,8 @@ function severityTag(value: unknown) {
     critical: "danger",
     high: "warning",
     medium: "info",
-    low: "success"
+    low: "success",
+    resource: "success"
   };
   return tags[String(value)] ?? "info";
 }
@@ -322,21 +730,61 @@ function statusLabel(value: unknown) {
     created: "已派发",
     processing: "处置中",
     closed: "已闭环",
-    suppressed: "已抑制"
+    suppressed: "已抑制",
+    completed: "已完成",
+    running: "执行中",
+    ingesting: "接入中",
+    failed: "失败",
+    cancelled: "已取消"
   };
   return labelsByStatus[String(value)] ?? String(value ?? "-");
 }
 
+function eventStatusLabel(value: unknown) {
+  const labelsByStatus: Record<string, string> = {
+    pending: "未开始",
+    running: "执行中",
+    completed: "已完成",
+    failed: "失败",
+    cancelled: "已取消"
+  };
+  return labelsByStatus[String(value)] ?? String(value ?? "未开始");
+}
+
 function statusTag(value: unknown) {
   const tags: Record<string, "danger" | "warning" | "info" | "success"> = {
     created: "warning",
     processing: "info",
     pending: "warning",
+    running: "info",
+    completed: "success",
     closed: "success",
+    failed: "danger",
+    cancelled: "warning",
     suppressed: "info"
   };
   return tags[String(value)] ?? "info";
 }
 
+function stageTag(value: unknown) {
+  const tags: Record<string, "danger" | "warning" | "info" | "success"> = {
+    running: "info",
+    completed: "success",
+    failed: "danger",
+    cancelled: "warning"
+  };
+  return tags[String(value)] ?? "info";
+}
+
+function resourceLabel(value: unknown) {
+  const labelsByType: Record<string, string> = {
+    image: "可见光资源",
+    thermal: "红外资源",
+    tif: "防洪TIF资源"
+  };
+  return labelsByType[String(value)] ?? String(value ?? "资源");
+}
+
 onMounted(refresh);
+onBeforeUnmount(closeDemoEventSource);
 </script>
diff --git a/frontend/src/services/api.ts b/frontend/src/services/api.ts
index 0885a79..7242c12 100644
--- a/frontend/src/services/api.ts
+++ b/frontend/src/services/api.ts
@@ -45,3 +45,22 @@ export async function runDemo() {
   const { data } = await client.post("/demo/run-full-chain", {});
   return data.data;
 }
+
+export async function startDemoRun() {
+  const { data } = await client.post("/demo/runs", {});
+  return data.data;
+}
+
+export async function demoRunSnapshot(runId: string) {
+  const { data } = await client.get(`/demo/runs/${runId}`);
+  return data.data;
+}
+
+export async function cancelDemoRun(runId: string) {
+  const { data } = await client.post(`/demo/runs/${runId}/cancel`, {});
+  return data.data;
+}
+
+export function demoEventsUrl(runId: string) {
+  return `/api/v1/demo/runs/${runId}/events`;
+}
diff --git a/frontend/src/styles.css b/frontend/src/styles.css
index b1ae79f..34a681c 100644
--- a/frontend/src/styles.css
+++ b/frontend/src/styles.css
@@ -30,6 +30,13 @@ body {
   color: #dce8f5;
 }
 
+.header-actions {
+  display: inline-flex;
+  align-items: center;
+  gap: 10px;
+  flex-wrap: wrap;
+}
+
 .stats {
   display: grid;
   grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
@@ -55,6 +62,330 @@ body {
   margin-bottom: 18px;
 }
 
+.run-console {
+  margin-bottom: 18px;
+}
+
+.run-header {
+  display: grid;
+  grid-template-columns: minmax(260px, .55fr) minmax(320px, 1fr);
+  gap: 18px;
+  align-items: center;
+  padding-bottom: 16px;
+  border-bottom: 1px solid #e5edf5;
+}
+
+.run-header strong,
+.run-header span {
+  display: block;
+}
+
+.run-header strong {
+  color: #17365d;
+  font-size: 22px;
+}
+
+.run-header span {
+  margin-top: 6px;
+  color: #64748b;
+  font-size: 13px;
+}
+
+.run-timeline {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
+  gap: 10px;
+  margin: 16px 0;
+}
+
+.run-stage {
+  min-height: 68px;
+  padding: 10px;
+  border: 1px solid #d8e3ee;
+  border-radius: 8px;
+  background: #f8fafc;
+  color: #64748b;
+  display: grid;
+  grid-template-columns: 30px minmax(0, 1fr);
+  gap: 8px;
+  align-items: center;
+}
+
+.run-stage i {
+  width: 28px;
+  height: 28px;
+  border-radius: 999px;
+  display: grid;
+  place-items: center;
+  background: #e2e8f0;
+  color: #475569;
+  font-size: 12px;
+  font-style: normal;
+  font-weight: 800;
+}
+
+.run-stage span {
+  min-width: 0;
+  font-size: 13px;
+  font-weight: 700;
+  line-height: 1.25;
+}
+
+.stage-running {
+  border-color: rgba(37, 99, 235, .5);
+  background: #eff6ff;
+  color: #1d4ed8;
+}
+
+.stage-running i {
+  background: #2563eb;
+  color: #fff;
+}
+
+.stage-completed {
+  border-color: rgba(22, 163, 74, .42);
+  background: #f0fdf4;
+  color: #166534;
+}
+
+.stage-completed i {
+  background: #16a34a;
+  color: #fff;
+}
+
+.stage-failed {
+  border-color: rgba(220, 38, 38, .45);
+  background: #fef2f2;
+  color: #b91c1c;
+}
+
+.stage-failed i {
+  background: #dc2626;
+  color: #fff;
+}
+
+.stage-cancelled {
+  border-color: rgba(245, 158, 11, .45);
+  background: #fffbeb;
+  color: #92400e;
+}
+
+.stage-cancelled i {
+  background: #f59e0b;
+  color: #fff;
+}
+
+.run-board {
+  display: grid;
+  grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr);
+  gap: 18px;
+  align-items: stretch;
+}
+
+.run-map {
+  position: relative;
+  min-height: 430px;
+  overflow: hidden;
+  border: 1px solid #d8e3ee;
+  border-radius: 8px;
+  background:
+    radial-gradient(circle at 18% 72%, rgba(34, 197, 94, .12), transparent 24%),
+    radial-gradient(circle at 78% 32%, rgba(14, 165, 233, .14), transparent 22%),
+    linear-gradient(90deg, rgba(203, 213, 225, .22) 1px, transparent 1px),
+    linear-gradient(0deg, rgba(203, 213, 225, .22) 1px, transparent 1px),
+    linear-gradient(135deg, #f8fbff 0%, #edf7f1 100%);
+  background-size: 100% 100%, 100% 100%, 64px 64px, 64px 64px, 100% 100%;
+}
+
+.stage-detail {
+  min-width: 0;
+  border: 1px solid #d8e3ee;
+  border-radius: 8px;
+  background: #fff;
+  padding: 14px;
+  overflow: hidden;
+}
+
+.stage-title {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  gap: 12px;
+  margin-bottom: 12px;
+}
+
+.stage-title strong {
+  color: #17365d;
+  font-size: 18px;
+}
+
+.metric-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
+  gap: 10px;
+  margin-bottom: 14px;
+}
+
+.metric-grid div {
+  min-height: 64px;
+  padding: 10px;
+  border: 1px solid #e2e8f0;
+  border-radius: 8px;
+  background: #f8fafc;
+}
+
+.metric-grid strong,
+.metric-grid span {
+  display: block;
+}
+
+.metric-grid strong {
+  color: #17365d;
+  font-size: 18px;
+  word-break: break-word;
+}
+
+.metric-grid span {
+  margin-top: 6px;
+  color: #64748b;
+  font-size: 12px;
+}
+
+.visual-block {
+  margin-top: 12px;
+}
+
+.visual-block h3 {
+  margin: 0 0 8px;
+  color: #334155;
+  font-size: 14px;
+}
+
+.visual-row {
+  display: grid;
+  grid-template-columns: minmax(110px, .7fr) minmax(0, 1fr);
+  gap: 10px;
+  min-height: 34px;
+  padding: 8px 0;
+  border-bottom: 1px solid #eef2f7;
+}
+
+.visual-row span,
+.visual-row em {
+  min-width: 0;
+}
+
+.visual-row span {
+  color: #17365d;
+  font-weight: 700;
+}
+
+.visual-row em {
+  color: #64748b;
+  font-style: normal;
+  word-break: break-word;
+}
+
+.run-bottom {
+  display: grid;
+  grid-template-columns: minmax(0, 1.1fr) minmax(340px, .9fr);
+  gap: 18px;
+  margin-top: 18px;
+}
+
+.event-stream,
+.run-summary {
+  border: 1px solid #d8e3ee;
+  border-radius: 8px;
+  background: #fff;
+}
+
+.event-stream {
+  max-height: 300px;
+  overflow: auto;
+}
+
+.stream-title {
+  position: sticky;
+  top: 0;
+  z-index: 1;
+  padding: 12px 14px;
+  border-bottom: 1px solid #e5edf5;
+  background: #fff;
+  color: #17365d;
+  font-weight: 800;
+}
+
+.event-line {
+  display: grid;
+  grid-template-columns: 80px minmax(110px, .45fr) minmax(0, 1fr);
+  gap: 12px;
+  align-items: center;
+  padding: 10px 14px;
+  border-bottom: 1px solid #eef2f7;
+  color: #334155;
+}
+
+.event-line time {
+  color: #64748b;
+  font-size: 12px;
+}
+
+.event-line strong {
+  color: #17365d;
+  font-size: 13px;
+}
+
+.event-line span {
+  min-width: 0;
+  color: #475569;
+  font-size: 13px;
+}
+
+.event-running {
+  background: #eff6ff;
+}
+
+.event-completed {
+  background: #f7fef9;
+}
+
+.event-failed {
+  background: #fef2f2;
+}
+
+.run-summary {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
+  gap: 0;
+  align-content: start;
+  overflow: hidden;
+}
+
+.run-summary div {
+  min-height: 78px;
+  padding: 14px;
+  border-right: 1px solid #eef2f7;
+  border-bottom: 1px solid #eef2f7;
+}
+
+.run-summary strong,
+.run-summary span {
+  display: block;
+}
+
+.run-summary strong {
+  color: #17365d;
+  font-size: 20px;
+  word-break: break-word;
+}
+
+.run-summary span {
+  margin-top: 7px;
+  color: #64748b;
+  font-size: 12px;
+}
+
 .gis-grid {
   grid-template-columns: minmax(0, 1.35fr) minmax(min(100%, 420px), .65fr);
 }
@@ -162,7 +493,8 @@ body {
   font-weight: 600;
 }
 
-.alarm-marker {
+.alarm-marker,
+.run-marker {
   position: absolute;
   z-index: 3;
   transform: translate(-50%, -50%);
@@ -179,7 +511,8 @@ body {
   cursor: default;
 }
 
-.alarm-marker::after {
+.alarm-marker::after,
+.run-marker::after {
   content: "";
   position: absolute;
   inset: -7px;
@@ -188,6 +521,27 @@ body {
   opacity: .25;
 }
 
+.run-marker {
+  z-index: 5;
+}
+
+.uav-marker {
+  position: absolute;
+  z-index: 6;
+  width: 58px;
+  height: 30px;
+  transform: translate(-50%, -50%);
+  border: 2px solid #fff;
+  border-radius: 999px;
+  background: #2563eb;
+  color: #fff;
+  display: grid;
+  place-items: center;
+  font-size: 12px;
+  font-weight: 800;
+  box-shadow: 0 12px 30px rgba(37, 99, 235, .3);
+}
+
 .severity-critical {
   background: #dc2626;
 }
@@ -204,6 +558,10 @@ body {
   background: #16a34a;
 }
 
+.severity-resource {
+  background: #0f766e;
+}
+
 .marker-card {
   position: absolute;
   left: 34px;
@@ -221,7 +579,8 @@ body {
   transition: opacity .16s ease, transform .16s ease;
 }
 
-.alarm-marker:hover .marker-card {
+.alarm-marker:hover .marker-card,
+.run-marker:hover .marker-card {
   opacity: 1;
   transform: translate(4px, -50%);
 }
@@ -376,6 +735,9 @@ body {
     gap: 14px;
   }
 
+  .run-header,
+  .run-board,
+  .run-bottom,
   .gis-grid,
   .gis-workbench {
     grid-template-columns: 1fr;
@@ -396,4 +758,9 @@ body {
     align-items: flex-start;
     flex-direction: column;
   }
+
+  .event-line,
+  .visual-row {
+    grid-template-columns: 1fr;
+  }
 }
diff --git a/platform/backend/src/main/java/com/ai/trackwalker/demo/DemoRunController.java b/platform/backend/src/main/java/com/ai/trackwalker/demo/DemoRunController.java
new file mode 100644
index 0000000..81ec7e7
--- /dev/null
+++ b/platform/backend/src/main/java/com/ai/trackwalker/demo/DemoRunController.java
@@ -0,0 +1,42 @@
+package com.ai.trackwalker.demo;
+
+import com.ai.trackwalker.api.ApiResponse;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
+
+import java.util.Map;
+
+@RestController
+@RequestMapping("/api/v1/demo/runs")
+public class DemoRunController {
+    private final DemoRunService service;
+
+    public DemoRunController(DemoRunService service) {
+        this.service = service;
+    }
+
+    @PostMapping
+    public ApiResponse<?> startRun() {
+        return ApiResponse.ok(service.startRun());
+    }
+
+    @GetMapping("/{runId}")
+    public ApiResponse<?> snapshot(@PathVariable String runId) {
+        return ApiResponse.ok(service.snapshot(runId));
+    }
+
+    @GetMapping("/{runId}/events")
+    public SseEmitter events(@PathVariable String runId) {
+        return service.subscribe(runId);
+    }
+
+    @GetMapping("/{runId}/events/history")
+    public ApiResponse<?> history(@PathVariable String runId) {
+        return ApiResponse.ok(Map.of("events", service.history(runId)));
+    }
+
+    @PostMapping("/{runId}/cancel")
+    public ApiResponse<?> cancel(@PathVariable String runId) {
+        return ApiResponse.ok(service.cancel(runId));
+    }
+}
diff --git a/platform/backend/src/main/java/com/ai/trackwalker/demo/DemoRunEventPublisher.java b/platform/backend/src/main/java/com/ai/trackwalker/demo/DemoRunEventPublisher.java
new file mode 100644
index 0000000..32dff20
--- /dev/null
+++ b/platform/backend/src/main/java/com/ai/trackwalker/demo/DemoRunEventPublisher.java
@@ -0,0 +1,179 @@
+package com.ai.trackwalker.demo;
+
+import com.ai.trackwalker.common.Ids;
+import com.ai.trackwalker.common.Jsonb;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Component;
+import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
+
+import java.io.IOException;
+import java.sql.Timestamp;
+import java.time.Instant;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+@Component
+public class DemoRunEventPublisher {
+    private static final long SSE_TIMEOUT_MS = 30 * 60 * 1000L;
+
+    private final JdbcTemplate jdbc;
+    private final Map<String, CopyOnWriteArrayList<SseEmitter>> emitters = new ConcurrentHashMap<>();
+
+    public DemoRunEventPublisher(JdbcTemplate jdbc) {
+        this.jdbc = jdbc;
+    }
+
+    public SseEmitter subscribe(String runId) {
+        SseEmitter emitter = new SseEmitter(SSE_TIMEOUT_MS);
+        emitters.computeIfAbsent(runId, ignored -> new CopyOnWriteArrayList<>()).add(emitter);
+        emitter.onCompletion(() -> removeEmitter(runId, emitter));
+        emitter.onTimeout(() -> removeEmitter(runId, emitter));
+        emitter.onError(error -> removeEmitter(runId, emitter));
+
+        for (Map<String, Object> event : history(runId)) {
+            send(emitter, event);
+        }
+        return emitter;
+    }
+
+    public Map<String, Object> emit(
+            String runId,
+            DemoStep step,
+            String status,
+            int progress,
+            String title,
+            String message,
+            String entityType,
+            String entityId,
+            Map<String, Object> metrics,
+            Map<String, Object> visualPayload
+    ) {
+        String eventId = Ids.next("dre");
+        Instant now = Instant.now();
+        Map<String, Object> safeMetrics = metrics == null ? Map.of() : metrics;
+        Map<String, Object> safeVisualPayload = visualPayload == null ? Map.of() : visualPayload;
+
+        jdbc.update(
+                "insert into demo_run_events(id, run_id, step_key, step_name, status, progress, title, message, entity_type, entity_id, metrics, visual_payload, created_at) values (?,?,?,?,?,?,?,?,?,?,?::jsonb,?::jsonb,?)",
+                eventId,
+                runId,
+                step.key(),
+                step.label(),
+                status,
+                progress,
+                title,
+                message,
+                entityType,
+                entityId,
+                Jsonb.write(safeMetrics),
+                Jsonb.write(safeVisualPayload),
+                Timestamp.from(now)
+        );
+
+        String runStatus = runStatus(step, status);
+        if ("failed".equals(runStatus)) {
+            jdbc.update("update demo_runs set status=?, current_step=?, progress=?, completed_at=?, error_message=? where id=?",
+                    runStatus, step.key(), progress, Timestamp.from(now), message, runId);
+        } else if ("completed".equals(runStatus) || "cancelled".equals(runStatus)) {
+            jdbc.update("update demo_runs set status=?, current_step=?, progress=?, completed_at=? where id=?",
+                    runStatus, step.key(), progress, Timestamp.from(now), runId);
+        } else {
+            jdbc.update("update demo_runs set status=?, current_step=?, progress=? where id=?", runStatus, step.key(), progress, runId);
+        }
+
+        Map<String, Object> event = Map.ofEntries(
+                Map.entry("event_id", eventId),
+                Map.entry("run_id", runId),
+                Map.entry("step_key", step.key()),
+                Map.entry("step_name", step.label()),
+                Map.entry("status", status),
+                Map.entry("progress", progress),
+                Map.entry("title", title),
+                Map.entry("message", message == null ? "" : message),
+                Map.entry("entity_type", entityType == null ? "" : entityType),
+                Map.entry("entity_id", entityId == null ? "" : entityId),
+                Map.entry("metrics", safeMetrics),
+                Map.entry("visual_payload", safeVisualPayload),
+                Map.entry("created_at", now.toString())
+        );
+        broadcast(runId, event);
+        return event;
+    }
+
+    public List<Map<String, Object>> history(String runId) {
+        return jdbc.query("""
+                        select id as event_id,
+                               run_id,
+                               step_key,
+                               step_name,
+                               status,
+                               progress,
+                               title,
+                               message,
+                               entity_type,
+                               entity_id,
+                               metrics::text as metrics,
+                               visual_payload::text as visual_payload,
+                               created_at
+                        from demo_run_events
+                        where run_id=?
+                        order by created_at
+                        """,
+                (rs, rowNum) -> Map.ofEntries(
+                        Map.entry("event_id", rs.getString("event_id")),
+                        Map.entry("run_id", rs.getString("run_id")),
+                        Map.entry("step_key", rs.getString("step_key")),
+                        Map.entry("step_name", rs.getString("step_name")),
+                        Map.entry("status", rs.getString("status")),
+                        Map.entry("progress", rs.getInt("progress")),
+                        Map.entry("title", rs.getString("title")),
+                        Map.entry("message", rs.getString("message") == null ? "" : rs.getString("message")),
+                        Map.entry("entity_type", rs.getString("entity_type") == null ? "" : rs.getString("entity_type")),
+                        Map.entry("entity_id", rs.getString("entity_id") == null ? "" : rs.getString("entity_id")),
+                        Map.entry("metrics", Jsonb.map(rs.getString("metrics"))),
+                        Map.entry("visual_payload", Jsonb.map(rs.getString("visual_payload"))),
+                        Map.entry("created_at", rs.getTimestamp("created_at").toInstant().toString())
+                ),
+                runId
+        );
+    }
+
+    private void broadcast(String runId, Map<String, Object> event) {
+        for (SseEmitter emitter : emitters.getOrDefault(runId, new CopyOnWriteArrayList<>())) {
+            send(emitter, event);
+        }
+    }
+
+    private void send(SseEmitter emitter, Map<String, Object> event) {
+        try {
+            emitter.send(SseEmitter.event()
+                    .id(String.valueOf(event.get("event_id")))
+                    .name("demo-run-event")
+                    .data(event));
+        } catch (IOException | IllegalStateException ignored) {
+            emitters.values().forEach(list -> list.remove(emitter));
+        }
+    }
+
+    private void removeEmitter(String runId, SseEmitter emitter) {
+        CopyOnWriteArrayList<SseEmitter> runEmitters = emitters.get(runId);
+        if (runEmitters != null) {
+            runEmitters.remove(emitter);
+        }
+    }
+
+    private static String runStatus(DemoStep step, String eventStatus) {
+        if (step == DemoStep.RUN_COMPLETED) {
+            return "completed";
+        }
+        if (step == DemoStep.RUN_FAILED || "failed".equals(eventStatus)) {
+            return "failed";
+        }
+        if (step == DemoStep.RUN_CANCELLED || "cancelled".equals(eventStatus)) {
+            return "cancelled";
+        }
+        return "running";
+    }
+}
diff --git a/platform/backend/src/main/java/com/ai/trackwalker/demo/DemoRunService.java b/platform/backend/src/main/java/com/ai/trackwalker/demo/DemoRunService.java
new file mode 100644
index 0000000..29b26c7
--- /dev/null
+++ b/platform/backend/src/main/java/com/ai/trackwalker/demo/DemoRunService.java
@@ -0,0 +1,459 @@
+package com.ai.trackwalker.demo;
+
+import com.ai.trackwalker.api.dto.Requests;
+import com.ai.trackwalker.common.Ids;
+import com.ai.trackwalker.common.Jsonb;
+import com.ai.trackwalker.service.PlatformService;
+import jakarta.annotation.PreDestroy;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Service;
+import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
+
+import java.sql.Timestamp;
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+@Service
+public class DemoRunService {
+    private final PlatformService platformService;
+    private final JdbcTemplate jdbc;
+    private final DemoRunEventPublisher eventPublisher;
+    private final ExecutorService executor = Executors.newCachedThreadPool();
+
+    public DemoRunService(PlatformService platformService, JdbcTemplate jdbc, DemoRunEventPublisher eventPublisher) {
+        this.platformService = platformService;
+        this.jdbc = jdbc;
+        this.eventPublisher = eventPublisher;
+    }
+
+    public Map<String, Object> startRun() {
+        String runId = Ids.next("run");
+        Instant now = Instant.now();
+        jdbc.update("insert into demo_runs(id, status, current_step, progress, summary, started_at) values (?,?,?,?,?::jsonb,?)",
+                runId, "running", DemoStep.INITIALIZING.key(), 0, "{}", Timestamp.from(now));
+        eventPublisher.emit(runId, DemoStep.INITIALIZING, "running", 2, "全链路运行实例已创建",
+                "正在初始化线路、场景与阶段时间轴", "demo_run", runId,
+                Map.of("stage_count", DemoStep.timeline().size()),
+                Map.of("line_id", "line-demo", "mileage_start", "K123+000", "mileage_end", "K130+000", "scenes", demoScenes()));
+        executor.submit(() -> executeRun(runId));
+        return Map.of(
+                "run_id", runId,
+                "status", "running",
+                "event_stream_url", "/api/v1/demo/runs/" + runId + "/events",
+                "snapshot_url", "/api/v1/demo/runs/" + runId
+        );
+    }
+
+    public Map<String, Object> snapshot(String runId) {
+        Map<String, Object> run = jdbc.queryForMap("select *, summary::text as summary_text from demo_runs where id=?", runId);
+        List<Map<String, Object>> events = eventPublisher.history(runId);
+        Map<String, Map<String, Object>> latestByStep = events.stream()
+                .collect(java.util.stream.Collectors.toMap(
+                        event -> String.valueOf(event.get("step_key")),
+                        event -> event,
+                        (left, right) -> right
+                ));
+        List<Map<String, Object>> steps = DemoStep.timeline().stream()
+                .map(step -> {
+                    Map<String, Object> latest = latestByStep.get(String.valueOf(step.get("key")));
+                    return Map.<String, Object>of(
+                            "key", step.get("key"),
+                            "name", step.get("name"),
+                            "progress", latest == null ? 0 : latest.get("progress"),
+                            "status", latest == null ? "pending" : latest.get("status")
+                    );
+                })
+                .toList();
+
+        return Map.ofEntries(
+                Map.entry("run_id", run.get("id")),
+                Map.entry("status", run.get("status")),
+                Map.entry("current_step", run.get("current_step") == null ? "" : run.get("current_step")),
+                Map.entry("progress", run.get("progress")),
+                Map.entry("task_id", run.get("task_id") == null ? "" : run.get("task_id")),
+                Map.entry("summary", Jsonb.map(String.valueOf(run.get("summary_text")))),
+                Map.entry("started_at", ((Timestamp) run.get("started_at")).toInstant().toString()),
+                Map.entry("completed_at", run.get("completed_at") == null ? "" : ((Timestamp) run.get("completed_at")).toInstant().toString()),
+                Map.entry("error_message", run.get("error_message") == null ? "" : run.get("error_message")),
+                Map.entry("steps", steps),
+                Map.entry("events", events)
+        );
+    }
+
+    public List<Map<String, Object>> history(String runId) {
+        return eventPublisher.history(runId);
+    }
+
+    public SseEmitter subscribe(String runId) {
+        return eventPublisher.subscribe(runId);
+    }
+
+    public Map<String, Object> cancel(String runId) {
+        jdbc.update("update demo_runs set cancel_requested=true where id=? and status='running'", runId);
+        return Map.of("run_id", runId, "cancel_requested", true);
+    }
+
+    @PreDestroy
+    public void shutdown() {
+        executor.shutdownNow();
+    }
+
+    private void executeRun(String runId) {
+        try {
+            pause();
+            ensureActive(runId);
+            eventPublisher.emit(runId, DemoStep.INITIALIZING, "completed", DemoStep.INITIALIZING.progress(), "运行初始化完成",
+                    "线路、场景、阶段时间轴和事件通道已准备就绪", "demo_run", runId,
+                    Map.of("stage_count", DemoStep.timeline().size()),
+                    Map.of("line_id", "line-demo", "mileage_start", "K123+000", "mileage_end", "K130+000", "scenes", demoScenes()));
+
+            eventPublisher.emit(runId, DemoStep.TASK_CREATED, "running", 6, "正在创建巡检任务",
+                    "写入巡检任务、线路里程和场景清单", "inspection_task", "",
+                    Map.of("scene_count", demoScenes().size()),
+                    Map.of("line_id", "line-demo", "mileage_start", "K123+000", "mileage_end", "K130+000"));
+            Map<String, Object> task = platformService.createTask(new Requests.CreateTaskRequest(
+                    "DEMO-" + runId.substring(Math.max(0, runId.length() - 6)),
+                    "line-demo",
+                    "K123+000",
+                    "K130+000",
+                    "route-demo",
+                    demoScenes(),
+                    "high",
+                    null
+            ));
+            String taskId = String.valueOf(task.get("task_id"));
+            jdbc.update("update demo_runs set task_id=? where id=?", taskId, runId);
+            eventPublisher.emit(runId, DemoStep.TASK_CREATED, "completed", DemoStep.TASK_CREATED.progress(), "巡检任务创建完成",
+                    "任务已进入数据接入与分析流程", "inspection_task", taskId,
+                    Map.of("task_count", 1),
+                    Map.of("task_id", taskId, "line_id", "line-demo", "mileage_start", "K123+000", "mileage_end", "K130+000", "priority", "high"));
+
+            ensureActive(runId);
+            emitUavDispatch(runId, taskId);
+
+            ensureActive(runId);
+            List<Requests.ResourceItem> resources = demoResources();
+            eventPublisher.emit(runId, DemoStep.RESOURCE_INGESTING, "running", 22, "正在接入多源巡检数据",
+                    "接入可见光、红外与防洪 TIF 资源", "inspection_task", taskId,
+                    Map.of("resource_count", resources.size()),
+                    Map.of("resources", resourceVisuals(resources, List.of())));
+            List<String> resourceIds = platformService.ingestResources(new Requests.ResourceCompleteRequest(taskId, resources));
+            eventPublisher.emit(runId, DemoStep.RESOURCE_INGESTING, "completed", DemoStep.RESOURCE_INGESTING.progress(), "多源数据接入完成",
+                    "资源已写入数据链路并完成空间位置登记", "inspection_task", taskId,
+                    Map.of("resource_count", resourceIds.size()),
+                    Map.of("resources", resourceVisuals(resources, resourceIds)));
+
+            ensureActive(runId);
+            emitPreprocess(runId, taskId, resourceIds);
+
+            ensureActive(runId);
+            eventPublisher.emit(runId, DemoStep.AI_INFERENCING, "running", 45, "正在创建分析任务并调用模型",
+                    "视觉、红外、点云/TIF 模型开始推理", "inspection_task", taskId,
+                    Map.of("resource_count", resourceIds.size(), "model_count", 3),
+                    Map.of("models", modelVisuals("running", 0), "resources", resourceVisuals(resources, resourceIds)));
+            Map<String, Object> job = platformService.createAnalysisJob(new Requests.CreateAnalysisJobRequest(taskId, resourceIds, demoScenes(), "offline", "high"));
+            String jobId = String.valueOf(job.get("analysis_job_id"));
+            Map<String, Object> analysis = platformService.runAnalysis(jobId);
+            int aiResultCount = count("ai_results where task_id=?", taskId);
+            eventPublisher.emit(runId, DemoStep.AI_INFERENCING, "completed", DemoStep.AI_INFERENCING.progress(), "AI推理分析完成",
+                    "模型已生成识别、温度和形变分析结果", "analysis_job", jobId,
+                    Map.of("ai_results", aiResultCount, "avg_confidence", avgConfidence(taskId)),
+                    Map.of("models", modelVisuals("completed", aiResultCount), "summary", analysis.get("summary")));
+
+            ensureActive(runId);
+            List<Map<String, Object>> alarms = alarmsByTask(taskId);
+            eventPublisher.emit(runId, DemoStep.RULE_EVALUATING, "completed", DemoStep.RULE_EVALUATING.progress(), "GIS规则判定完成",
+                    "已完成线路范围、防护区、接触网 ROI、温度和防洪阈值判定", "inspection_task", taskId,
+                    Map.of("rule_hits", ruleHitCount(alarms), "suppressed", count("alarms where task_id=? and suppressed=true", taskId)),
+                    Map.of("rule_hits", ruleVisuals(alarms), "markers", alarmMarkers(alarms)));
+
+            eventPublisher.emit(runId, DemoStep.ALARM_GENERATING, "completed", DemoStep.ALARM_GENERATING.progress(), "告警生成完成",
+                    "有效告警已完成分级、证据关联和空间定位", "inspection_task", taskId,
+                    Map.of("alarms", alarms.size(), "severity", severityCounts(taskId)),
+                    Map.of("alarms", alarms.stream().limit(8).toList(), "markers", alarmMarkers(alarms)));
+
+            ensureActive(runId);
+            List<Map<String, Object>> workorders = workordersByTask(taskId);
+            eventPublisher.emit(runId, DemoStep.WORKORDER_DISPATCHING, "completed", DemoStep.WORKORDER_DISPATCHING.progress(), "工单派发完成",
+                    "告警已自动生成处置工单并派发专业复核人员", "inspection_task", taskId,
+                    Map.of("workorders", workorders.size(), "pending", pendingCount(workorders)),
+                    Map.of("workorders", workorders.stream().limit(8).toList(), "flow", workorderFlow(workorders)));
+
+            ensureActive(runId);
+            int closed = closeSampleWorkorders(workorders);
+            workorders = workordersByTask(taskId);
+            eventPublisher.emit(runId, DemoStep.WORKORDER_CLOSING, "completed", DemoStep.WORKORDER_CLOSING.progress(), "工单闭环状态已更新",
+                    "部分工单已模拟完成现场处置和复核关闭", "inspection_task", taskId,
+                    Map.of("closed", closedCount(workorders), "pending", pendingCount(workorders)),
+                    Map.of("workorders", workorders.stream().limit(8).toList(), "closed_this_run", closed, "flow", workorderFlow(workorders)));
+
+            ensureActive(runId);
+            Map<String, Object> samples = Map.of(
+                    "candidate_samples", aiResultCount,
+                    "closed_verified_samples", closedCount(workorders),
+                    "labeling_queue", Math.max(alarms.size() - closedCount(workorders), 0)
+            );
+            eventPublisher.emit(runId, DemoStep.SAMPLE_FEEDBACK, "completed", DemoStep.SAMPLE_FEEDBACK.progress(), "样本回流已生成",
+                    "告警证据、复核结果与模型版本已形成样本回流队列", "inspection_task", taskId,
+                    samples,
+                    Map.of("samples", samples, "model_groups", List.of("vision-detector", "thermal-analyzer", "pointcloud-analyzer")));
+
+            Map<String, Object> summary = summaryForTask(taskId);
+            jdbc.update("update demo_runs set summary=?::jsonb where id=?", Jsonb.write(summary), runId);
+            eventPublisher.emit(runId, DemoStep.RUN_COMPLETED, "completed", DemoStep.RUN_COMPLETED.progress(), "全链路运行完成",
+                    "巡检任务、数据接入、AI识别、规则告警、工单闭环和样本回流已完成", "inspection_task", taskId,
+                    summary,
+                    Map.of("summary", summary, "markers", alarmMarkers(alarms), "workorders", workorders.stream().limit(8).toList()));
+        } catch (CancelledRunException ignored) {
+            // The cancellation event has already been emitted.
+        } catch (Exception e) {
+            eventPublisher.emit(runId, DemoStep.RUN_FAILED, "failed", 100, "全链路运行失败",
+                    e.getMessage() == null ? e.getClass().getSimpleName() : e.getMessage(), "demo_run", runId,
+                    Map.of(), Map.of("error", e.getClass().getName()));
+        }
+    }
+
+    private void emitUavDispatch(String runId, String taskId) {
+        eventPublisher.emit(runId, DemoStep.UAV_DISPATCHING, "running", 12, "航线任务已下发",
+                "无人机平台已接收线路巡检航线", "inspection_task", taskId,
+                Map.of("route_progress", 20),
+                Map.of("route_progress", 20, "uav_status", "已下发", "line_id", "line-demo"));
+        pause();
+        eventPublisher.emit(runId, DemoStep.UAV_DISPATCHING, "running", 16, "无人机巡检执行中",
+                "正在沿 K123+000 至 K130+000 执行采集", "inspection_task", taskId,
+                Map.of("route_progress", 68),
+                Map.of("route_progress", 68, "uav_status", "飞行中", "position", Map.of("mileage", "K126+800")));
+        pause();
+        eventPublisher.emit(runId, DemoStep.UAV_DISPATCHING, "completed", DemoStep.UAV_DISPATCHING.progress(), "航线任务完成",
+                "无人机任务状态回调已确认完成", "inspection_task", taskId,
+                Map.of("route_progress", 100),
+                Map.of("route_progress", 100, "uav_status", "已完成", "position", Map.of("mileage", "K130+000")));
+    }
+
+    private void emitPreprocess(String runId, String taskId, List<String> resourceIds) {
+        List<Map<String, Object>> checks = new ArrayList<>();
+        checks.add(Map.of("name", "图像/视频解码", "status", "completed", "quality", "清晰度达标"));
+        eventPublisher.emit(runId, DemoStep.PREPROCESS_RUNNING, "running", 32, "图像资源预处理完成",
+                "可见光与红外资源已完成解码和质量检查", "inspection_task", taskId,
+                Map.of("finished_checks", checks.size(), "resource_count", resourceIds.size()),
+                Map.of("checks", checks));
+        pause();
+        checks.add(Map.of("name", "坐标与时间同步", "status", "completed", "quality", "WGS84 坐标有效"));
+        eventPublisher.emit(runId, DemoStep.PREPROCESS_RUNNING, "running", 35, "空间坐标归一完成",
+                "采集点、航线和线路里程已建立关联", "inspection_task", taskId,
+                Map.of("finished_checks", checks.size(), "resource_count", resourceIds.size()),
+                Map.of("checks", checks));
+        pause();
+        checks.add(Map.of("name", "TIF/点云指标解析", "status", "completed", "quality", "体积变化指标有效"));
+        eventPublisher.emit(runId, DemoStep.PREPROCESS_RUNNING, "completed", DemoStep.PREPROCESS_RUNNING.progress(), "数据预处理完成",
+                "标准化资源已进入 AI 分析队列", "inspection_task", taskId,
+                Map.of("finished_checks", checks.size(), "resource_count", resourceIds.size()),
+                Map.of("checks", checks));
+    }
+
+    private int closeSampleWorkorders(List<Map<String, Object>> workorders) {
+        int limit = Math.min(2, workorders.size());
+        for (int i = 0; i < limit; i++) {
+            Map<String, Object> row = workorders.get(i);
+            platformService.workOrderCallback(new Requests.WorkOrderCallbackRequest(
+                    String.valueOf(row.get("alarm_id")),
+                    String.valueOf(row.get("workorder_id")),
+                    "closed",
+                    "现场处置完成",
+                    "全链路可视化示例自动闭环",
+                    "巡检平台",
+                    null
+            ));
+        }
+        return limit;
+    }
+
+    private void ensureActive(String runId) {
+        Boolean cancelled = jdbc.queryForObject("select cancel_requested from demo_runs where id=?", Boolean.class, runId);
+        if (Boolean.TRUE.equals(cancelled)) {
+            eventPublisher.emit(runId, DemoStep.RUN_CANCELLED, "cancelled", 100, "全链路运行已取消",
+                    "用户取消了当前全链路示例运行", "demo_run", runId, Map.of(), Map.of());
+            throw new CancelledRunException();
+        }
+    }
+
+    private void pause() {
+        try {
+            Thread.sleep(550);
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+        }
+    }
+
+    private List<String> demoScenes() {
+        return List.of("违法开挖", "塔吊", "人员入侵", "防洪点精密监测", "接触网异物（高危）", "杆上设备发热");
+    }
+
+    private List<Requests.ResourceItem> demoResources() {
+        return List.of(
+                new Requests.ResourceItem(null, "image", "s3://rail-inspection/demo/visible-001.jpg", null, Map.of("longitude", 116.1, "latitude", 39.1, "distance_to_track_m", 72.5)),
+                new Requests.ResourceItem(null, "thermal", "s3://rail-inspection/demo/thermal-001.tiff", null, Map.of("temperature_c", 86.3, "longitude", 116.101, "latitude", 39.101)),
+                new Requests.ResourceItem(null, "tif", "s3://rail-inspection/demo/flood-001.tif", null, Map.of("volume_change_m3", 1.8, "longitude", 116.102, "latitude", 39.102))
+        );
+    }
+
+    private List<Map<String, Object>> resourceVisuals(List<Requests.ResourceItem> resources, List<String> ids) {
+        List<Map<String, Object>> visuals = new ArrayList<>();
+        for (int i = 0; i < resources.size(); i++) {
+            Requests.ResourceItem item = resources.get(i);
+            visuals.add(Map.of(
+                    "resource_id", ids.size() > i ? ids.get(i) : "",
+                    "resource_type", item.resourceType(),
+                    "storage_url", item.storageUrl(),
+                    "status", ids.size() > i ? "completed" : "ingesting",
+                    "x", 22 + i * 24,
+                    "y", 62 - i * 12
+            ));
+        }
+        return visuals;
+    }
+
+    private List<Map<String, Object>> modelVisuals(String status, int resultCount) {
+        return List.of(
+                Map.of("model_group", "vision-detector", "status", status, "result_count", resultCount == 0 ? 0 : 12, "avg_confidence", 0.90),
+                Map.of("model_group", "thermal-analyzer", "status", status, "result_count", resultCount == 0 ? 0 : 3, "avg_confidence", 0.90),
+                Map.of("model_group", "pointcloud-analyzer", "status", status, "result_count", resultCount == 0 ? 0 : 3, "avg_confidence", 0.93)
+        );
+    }
+
+    private List<Map<String, Object>> alarmsByTask(String taskId) {
+        return jdbc.queryForList("""
+                select id as alarm_id,
+                       task_id,
+                       scene,
+                       category,
+                       severity,
+                       confidence,
+                       location::text as location,
+                       rule_hits::text as rule_hits,
+                       status,
+                       created_at,
+                       updated_at
+                from alarms
+                where task_id=?
+                order by created_at desc
+                """, taskId);
+    }
+
+    private List<Map<String, Object>> workordersByTask(String taskId) {
+        return jdbc.queryForList("""
+                select wo.id as workorder_id,
+                       wo.alarm_id,
+                       wo.status,
+                       wo.assignee,
+                       wo.close_result,
+                       wo.comment,
+                       wo.created_at,
+                       wo.updated_at,
+                       a.task_id,
+                       a.scene,
+                       a.category,
+                       a.severity,
+                       a.location::text as location
+                from work_orders wo
+                join alarms a on a.id=wo.alarm_id
+                where a.task_id=?
+                order by wo.updated_at desc
+                """, taskId);
+    }
+
+    private List<Map<String, Object>> alarmMarkers(List<Map<String, Object>> alarms) {
+        List<Map<String, Object>> markers = new ArrayList<>();
+        int total = Math.max(alarms.size() - 1, 1);
+        for (int i = 0; i < Math.min(alarms.size(), 18); i++) {
+            Map<String, Object> alarm = alarms.get(i);
+            double progress = alarms.size() == 1 ? 0.5 : (double) i / total;
+            Map<String, Object> location = Jsonb.map(String.valueOf(alarm.get("location")));
+            markers.add(Map.of(
+                    "id", alarm.get("alarm_id"),
+                    "scene", alarm.get("scene"),
+                    "severity", alarm.get("severity"),
+                    "status", alarm.get("status"),
+                    "mileage", location.getOrDefault("mileage", "K123+456"),
+                    "distance", location.getOrDefault("distance_to_track_m", ""),
+                    "x", Math.max(5, Math.min(94, 8 + progress * 84 + (i % 3 - 1) * 2.4)),
+                    "y", Math.max(8, Math.min(88, 70 - progress * 54 + (i % 2 == 0 ? -9 : 10)))
+            ));
+        }
+        return markers;
+    }
+
+    private List<Map<String, Object>> ruleVisuals(List<Map<String, Object>> alarms) {
+        return alarms.stream()
+                .limit(8)
+                .map(alarm -> Map.<String, Object>of(
+                        "alarm_id", alarm.get("alarm_id"),
+                        "scene", alarm.get("scene"),
+                        "severity", alarm.get("severity"),
+                        "rule_hits", Jsonb.stringList(String.valueOf(alarm.get("rule_hits")))
+                ))
+                .toList();
+    }
+
+    private Map<String, Object> workorderFlow(List<Map<String, Object>> workorders) {
+        return Map.of(
+                "alarm_generated", workorders.size(),
+                "workorder_dispatched", workorders.size(),
+                "processing", pendingCount(workorders),
+                "closed", closedCount(workorders)
+        );
+    }
+
+    private int count(String sqlSuffix, String taskId) {
+        return jdbc.queryForObject("select count(*) from " + sqlSuffix, Integer.class, taskId);
+    }
+
+    private double avgConfidence(String taskId) {
+        Number value = jdbc.queryForObject("select coalesce(avg(confidence),0) from ai_results where task_id=?", Number.class, taskId);
+        return value == null ? 0 : Math.round(value.doubleValue() * 100.0) / 100.0;
+    }
+
+    private int ruleHitCount(List<Map<String, Object>> alarms) {
+        return alarms.stream().mapToInt(alarm -> Jsonb.stringList(String.valueOf(alarm.get("rule_hits"))).size()).sum();
+    }
+
+    private Map<String, Object> severityCounts(String taskId) {
+        return jdbc.queryForList("select severity, count(*) as count from alarms where task_id=? group by severity", taskId)
+                .stream()
+                .collect(java.util.stream.Collectors.toMap(
+                        row -> String.valueOf(row.get("severity")),
+                        row -> row.get("count")
+                ));
+    }
+
+    private int pendingCount(List<Map<String, Object>> workorders) {
+        return (int) workorders.stream().filter(row -> !"closed".equals(String.valueOf(row.get("status")))).count();
+    }
+
+    private int closedCount(List<Map<String, Object>> workorders) {
+        return (int) workorders.stream().filter(row -> "closed".equals(String.valueOf(row.get("status")))).count();
+    }
+
+    private Map<String, Object> summaryForTask(String taskId) {
+        List<Map<String, Object>> workorders = workordersByTask(taskId);
+        return Map.of(
+                "tasks", 1,
+                "resources", count("inspection_resources where task_id=?", taskId),
+                "analysis_jobs", count("analysis_jobs where task_id=?", taskId),
+                "ai_results", count("ai_results where task_id=?", taskId),
+                "alarms", count("alarms where task_id=? and suppressed=false", taskId),
+                "suppressed", count("alarms where task_id=? and suppressed=true", taskId),
+                "workorders", workorders.size(),
+                "closed_workorders", closedCount(workorders),
+                "pending_workorders", pendingCount(workorders),
+                "sample_candidates", count("ai_results where task_id=?", taskId)
+        );
+    }
+
+    private static final class CancelledRunException extends RuntimeException {
+    }
+}
diff --git a/platform/backend/src/main/java/com/ai/trackwalker/demo/DemoStep.java b/platform/backend/src/main/java/com/ai/trackwalker/demo/DemoStep.java
new file mode 100644
index 0000000..1b8226b
--- /dev/null
+++ b/platform/backend/src/main/java/com/ai/trackwalker/demo/DemoStep.java
@@ -0,0 +1,51 @@
+package com.ai.trackwalker.demo;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+
+public enum DemoStep {
+    INITIALIZING("run.initializing", "运行初始化", 3),
+    TASK_CREATED("task.created", "巡检任务创建", 10),
+    UAV_DISPATCHING("uav.dispatching", "航线任务下发", 18),
+    RESOURCE_INGESTING("resource.ingesting", "多源数据接入", 28),
+    PREPROCESS_RUNNING("preprocess.running", "数据预处理", 38),
+    AI_INFERENCING("ai.inferencing", "AI推理分析", 55),
+    RULE_EVALUATING("rule.evaluating", "GIS规则判定", 66),
+    ALARM_GENERATING("alarm.generating", "告警生成", 76),
+    WORKORDER_DISPATCHING("workorder.dispatching", "工单派发", 84),
+    WORKORDER_CLOSING("workorder.closing", "工单闭环", 91),
+    SAMPLE_FEEDBACK("sample.feedback", "样本回流", 96),
+    RUN_COMPLETED("run.completed", "完成汇总", 100),
+    RUN_CANCELLED("run.cancelled", "运行取消", 100),
+    RUN_FAILED("run.failed", "运行失败", 100);
+
+    private final String key;
+    private final String label;
+    private final int progress;
+
+    DemoStep(String key, String label, int progress) {
+        this.key = key;
+        this.label = label;
+        this.progress = progress;
+    }
+
+    public String key() {
+        return key;
+    }
+
+    public String label() {
+        return label;
+    }
+
+    public int progress() {
+        return progress;
+    }
+
+    public static List<Map<String, Object>> timeline() {
+        return Arrays.stream(values())
+                .filter(step -> step != RUN_CANCELLED && step != RUN_FAILED)
+                .map(step -> Map.<String, Object>of("key", step.key, "name", step.label, "progress", step.progress))
+                .toList();
+    }
+}
diff --git a/platform/backend/src/main/java/com/ai/trackwalker/service/PlatformService.java b/platform/backend/src/main/java/com/ai/trackwalker/service/PlatformService.java
index cddb1f0..451bc2e 100644
--- a/platform/backend/src/main/java/com/ai/trackwalker/service/PlatformService.java
+++ b/platform/backend/src/main/java/com/ai/trackwalker/service/PlatformService.java
@@ -56,6 +56,14 @@ public class PlatformService {
 
     @Transactional
     public Map<String, Object> completeResources(Requests.ResourceCompleteRequest request) {
+        List<String> resourceIds = ingestResources(request);
+        Map<String, Object> job = createAnalysisJob(new Requests.CreateAnalysisJobRequest(request.taskId(), resourceIds, null, "offline", "normal"));
+        runAnalysis(String.valueOf(job.get("analysis_job_id")));
+        return Map.of("accepted", resourceIds.size(), "analysis_job_id", job.get("analysis_job_id"));
+    }
+
+    @Transactional
+    public List<String> ingestResources(Requests.ResourceCompleteRequest request) {
         List<String> resourceIds = request.resources().stream().map(resource -> resource.resourceId() == null ? Ids.next("res") : resource.resourceId()).toList();
         Instant now = Instant.now();
         for (int i = 0; i < request.resources().size(); i++) {
@@ -72,9 +80,7 @@ public class PlatformService {
             );
         }
         jdbc.update("update inspection_tasks set status='data_uploading', updated_at=? where id=?", Timestamp.from(now), request.taskId());
-        Map<String, Object> job = createAnalysisJob(new Requests.CreateAnalysisJobRequest(request.taskId(), resourceIds, null, "offline", "normal"));
-        runAnalysis(String.valueOf(job.get("analysis_job_id")));
-        return Map.of("accepted", resourceIds.size(), "analysis_job_id", job.get("analysis_job_id"));
+        return resourceIds;
     }
 
     @Transactional
diff --git a/platform/backend/src/main/resources/db/migration/V3__demo_runs.sql b/platform/backend/src/main/resources/db/migration/V3__demo_runs.sql
new file mode 100644
index 0000000..534f7dd
--- /dev/null
+++ b/platform/backend/src/main/resources/db/migration/V3__demo_runs.sql
@@ -0,0 +1,31 @@
+create table if not exists demo_runs (
+    id varchar(64) primary key,
+    status varchar(32) not null,
+    current_step varchar(64),
+    progress int not null default 0,
+    task_id varchar(64),
+    summary jsonb not null default '{}'::jsonb,
+    cancel_requested boolean not null default false,
+    started_at timestamptz not null,
+    completed_at timestamptz,
+    error_message text
+);
+
+create table if not exists demo_run_events (
+    id varchar(64) primary key,
+    run_id varchar(64) not null references demo_runs(id),
+    step_key varchar(64) not null,
+    step_name varchar(128) not null,
+    status varchar(32) not null,
+    progress int not null,
+    title varchar(256) not null,
+    message text,
+    entity_type varchar(64),
+    entity_id varchar(64),
+    metrics jsonb not null default '{}'::jsonb,
+    visual_payload jsonb not null default '{}'::jsonb,
+    created_at timestamptz not null
+);
+
+create index if not exists idx_demo_runs_status on demo_runs(status);
+create index if not exists idx_demo_run_events_run on demo_run_events(run_id, created_at);
diff --git a/scripts/smoke_test.ps1 b/scripts/smoke_test.ps1
index f72d01b..a64e67e 100644
--- a/scripts/smoke_test.ps1
+++ b/scripts/smoke_test.ps1
@@ -6,14 +6,52 @@ $frontend = if ($env:RAIL_FRONTEND_URL) { $env:RAIL_FRONTEND_URL } else { "http:
 Write-Host "Checking backend health via $base..."
 Invoke-RestMethod "$base/actuator/health" | ConvertTo-Json -Depth 10
 
-Write-Host "Running full-chain demo..."
-Invoke-RestMethod "$base/api/v1/demo/run-full-chain" -Method POST -ContentType "application/json" -Body "{}" | ConvertTo-Json -Depth 20
+Write-Host "Starting visual full-chain demo run..."
+$run = (Invoke-RestMethod "$base/api/v1/demo/runs" -Method POST -ContentType "application/json" -Body "{}").data
+$run | ConvertTo-Json -Depth 10
+
+Write-Host "Waiting for visual run completion..."
+$snapshot = $null
+for ($i = 0; $i -lt 90; $i++) {
+  Start-Sleep -Seconds 1
+  $snapshot = (Invoke-RestMethod "$base/api/v1/demo/runs/$($run.run_id)").data
+  if ($snapshot.status -in @("completed", "failed", "cancelled")) {
+    break
+  }
+}
+
+if ($null -eq $snapshot) {
+  throw "No demo run snapshot received"
+}
+
+$summary = [ordered]@{
+  run_id = $snapshot.run_id
+  status = $snapshot.status
+  progress = $snapshot.progress
+  event_count = $snapshot.events.Count
+  step_count = $snapshot.steps.Count
+  completed_step_count = @($snapshot.steps | Where-Object { $_.status -eq "completed" }).Count
+  summary = $snapshot.summary
+}
+$summary | ConvertTo-Json -Depth 20
+
+if ($snapshot.status -ne "completed") {
+  throw "Visual full-chain demo did not complete. Status: $($snapshot.status)"
+}
+
+if (@($snapshot.steps | Where-Object { $_.status -eq "completed" }).Count -ne 12) {
+  throw "Visual full-chain demo did not complete all 12 stages"
+}
 
 Write-Host "Fetching overview..."
 Invoke-RestMethod "$base/api/v1/stats/overview" | ConvertTo-Json -Depth 20
 
 Write-Host "Fetching workorders..."
-Invoke-RestMethod "$base/api/v1/workorders" | ConvertTo-Json -Depth 20
+$workorders = (Invoke-RestMethod "$base/api/v1/workorders").data.workorders
+[ordered]@{
+  workorder_count = $workorders.Count
+  latest_status = if ($workorders.Count -gt 0) { $workorders[0].status } else { "" }
+} | ConvertTo-Json -Depth 10
 
 Write-Host "Checking frontend..."
 (Invoke-WebRequest -UseBasicParsing $frontend).StatusCode