feat(commands): /reset, /assign validation, menu completion, closed-reopen notice, truncation

[one-ea]

Summary

• Add /reset confirm — clears messages, ai_drafts, admin_notes, conversation_tags; preserves conversation/contact/topic mappings
• /assign now validates numeric-only arguments (rejects abc etc.)
• Unknown command reply: "未知命令。发送 /help 查看可用命令列表。"
• Telegram command menu: add help, ai_on, ai_off, reset to both private and admin scopes
• Closed conversation auto-reopen sends bot notification to Topic
• fallbackText truncated to 4000 chars to prevent Telegram 4096 limit failures
• topicHelpText updated with /reset entry

Problem

No way to clear conversation history without deleting the entire Topic mapping. /assign accepted non-numeric input. /help /ai_on /ai_off missing from command menu. Closed conversations silently reopened without notifying admins. Long messages could exceed Telegram's 4096 char limit.

Verification

• npm run verify passed (check + 37 tests + audit 0 vulns)

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Review details

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Run ID: 4aa6c388-d1bf-449d-81a7-4425896f31b1

📥 Commits

Reviewing files that changed from the base of the PR and between ed2364a and e2d8800.

📒 Files selected for processing (5)

• src/channels/telegram/commands.ts
• src/channels/telegram/menu.ts
• src/channels/telegram/messages.ts
• src/domain/conversations.ts
• test/core.test.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch 260629-feat-command-message-refinement-v2

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