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>

.demo_memory/reference_monitoring.md

@@ -0,0 +1,9 @@
+---
+description: Grafana监控面板和Sentry错误追踪的外部地址
+name: '参考: 生产监控面板地址'
+type: reference
+---
+
+Grafana: http://grafana.internal:3000/d/api-latency
+Sentry: https://sentry.internal/organizations/myorg/projects/api
+Kibana: http://kibana.internal:5601/app/logs