fix: delete agent 500 error + dynamic personality + deployment guide

- Fix delete agent 500: clean up FK records (agent_llm_logs, permissions,
  schedules, executions, team_members) and unbind goals/tasks before delete
- Remove hardcoded personality templates in Android, replace with dynamic
  system prompt generation from name + description
- Set promptSectionsEnabled=false to bypass PromptComposer for personality
- Add Tencent Cloud Linux deployment guide (Docker Compose)
- Accumulated backend service updates, frontend UI fixes, Android app changes

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

_task_round9.json

@@ -0,0 +1,4 @@
+{
+  "project_description": "Test Android client source code at D:/aaa/aiagent/android. Scan real .kt source files under app/src/main/java/. Check for bugs, UX issues vs ChatGPT/Doubao, edge cases, architecture performance, memory leaks. Provide fix suggestions with file paths and line numbers. Key files: ChatViewModel.kt, SseClient.kt, AuthInterceptor.kt, MessageDao.kt, ConversationDao.kt, ApiService.kt, all Screen composables in ui/chat/ and ui/login/. Tech stack: Jetpack Compose + MVVM + Hilt DI + Room + SSE + OkHttp.",
+  "auto_approve_files": true
+}