chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

services/mailer/mail_comment.go

@@ -0,0 +1,61 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package mailer
+
+import (
+	"context"
+
+	activities_model "gitea.dev/models/activities"
+	issues_model "gitea.dev/models/issues"
+	user_model "gitea.dev/models/user"
+	"gitea.dev/modules/container"
+	"gitea.dev/modules/log"
+	"gitea.dev/modules/setting"
+)
+
+// MailParticipantsComment sends new comment emails to repository watchers and mentioned people.
+func MailParticipantsComment(ctx context.Context, c *issues_model.Comment, opType activities_model.ActionType, issue *issues_model.Issue, mentions []*user_model.User) error {
+	if setting.MailService == nil {
+		// No mail service configured
+		return nil
+	}
+
+	content := c.Content
+	if c.Type == issues_model.CommentTypePullRequestPush {
+		content = ""
+	}
+	if err := mailIssueCommentToParticipants(ctx,
+		&mailComment{
+			Issue:      issue,
+			Doer:       c.Poster,
+			ActionType: opType,
+			Content:    content,
+			Comment:    c,
+		}, mentions); err != nil {
+		log.Error("mailIssueCommentToParticipants: %v", err)
+	}
+	return nil
+}
+
+// MailMentionsComment sends email to users mentioned in a code comment
+func MailMentionsComment(ctx context.Context, pr *issues_model.PullRequest, c *issues_model.Comment, mentions []*user_model.User) (err error) {
+	if setting.MailService == nil {
+		// No mail service configured
+		return nil
+	}
+
+	visited := make(container.Set[int64], len(mentions)+1)
+	visited.Add(c.Poster.ID)
+	if err = mailIssueCommentBatch(ctx,
+		&mailComment{
+			Issue:      pr.Issue,
+			Doer:       c.Poster,
+			ActionType: activities_model.ActionCommentPull,
+			Content:    c.Content,
+			Comment:    c,
+		}, mentions, visited, true); err != nil {
+		log.Error("mailIssueCommentBatch: %v", err)
+	}
+	return nil
+}