chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

models/migrations/v1_27/v341.go

@@ -0,0 +1,80 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_27
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"gitea.dev/models/db"
+	"gitea.dev/models/migrations/base"
+
+	"xorm.io/xorm/schemas"
+)
+
+// legacyDateTimeColumns are the persisted real datetime columns that old Gitea
+// versions created as MSSQL DATETIME. Every other time value is stored as a
+// unix timestamp integer, so these are the only columns affected.
+var legacyDateTimeColumns = []struct {
+	bean   any
+	column string
+}{
+	{new(externalLoginUserWithExpiresAt), "expires_at"},
+	{new(lfsLockWithCreated), "created"},
+}
+
+type externalLoginUserWithExpiresAt struct {
+	ExpiresAt time.Time
+}
+
+func (externalLoginUserWithExpiresAt) TableName() string {
+	return "external_login_user"
+}
+
+type lfsLockWithCreated struct {
+	Created time.Time `xorm:"created"`
+}
+
+func (lfsLockWithCreated) TableName() string {
+	return "lfs_lock"
+}
+
+// FixLegacyMSSQLDateTimeColumns converts legacy locale-dependent DATETIME columns
+// to DATETIME2. Databases created by old Gitea versions stored these columns as
+// DATETIME, which fails to parse ISO datetime strings ('YYYY-MM-DD HH:MM:SS')
+// when the MSSQL session language is not English, breaking external account
+// linking and LFS lock creation. New installs already use DATETIME2, so only
+// legacy MSSQL columns need converting.
+func FixLegacyMSSQLDateTimeColumns(x db.EngineMigration) error {
+	if x.Dialect().URI().DBType != schemas.MSSQL {
+		return nil
+	}
+
+	for _, c := range legacyDateTimeColumns {
+		table, err := x.TableInfo(c.bean)
+		if err != nil {
+			return err
+		}
+
+		var dataType string
+		has, err := x.SQL("SELECT DATA_TYPE FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = ? AND COLUMN_NAME = ?", table.Name, c.column).Get(&dataType)
+		if err != nil {
+			return err
+		}
+		if !has || !strings.EqualFold(dataType, "datetime") {
+			continue
+		}
+
+		column := table.GetColumn(c.column)
+		if column == nil {
+			return fmt.Errorf("column %s does not exist in table %s", c.column, table.Name)
+		}
+		if err := base.ModifyColumn(x, table.Name, column); err != nil {
+			return fmt.Errorf("modify %s.%s: %w", table.Name, c.column, err)
+		}
+	}
+
+	return nil
+}