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>

docs/api-reference.md

@@ -356,6 +356,7 @@ Content-Type: application/json
 | 插件 | `/plugins` | 10 | 插件 CRUD/市场/安装/开关 |
 | 编排模板 | `/orchestration-templates` | 5 | 多 Agent 编排模板 CRUD |
 | 平台模板 | `/platform` | 4 | 场景模板/快捷创建 |
+| 场景契约 | `/scene-contracts` | 8 | 统一 DSL 契约 CRUD/预设/prompt 生成 |
 | 节点模板 | `/node-templates` | 6 | 节点配置模板 CRUD |
 | 节点测试 | `/nodes` | 1 | 单节点调试 |
 | 审批 | `/approval` | 2 | 审批查询/决议 |
@@ -370,6 +371,58 @@ Content-Type: application/json
 
 ---
 
+## 场景契约模块 `/api/v1/scene-contracts`
+
+统一 DSL 输入契约 API，定义标准输入格式（目标/约束/产物/验收），供模板复用。
+
+### 预置契约
+
+| 方法 | 路径 | 说明 |
+|------|------|------|
+| GET | `/scene-contracts/presets` | 列出 11 个预置契约元数据 |
+| GET | `/scene-contracts/presets/{contract_id}` | 预置契约完整内容 |
+
+预置契约 ID：`contract_customer_service` / `contract_dev_codegen` / `contract_ops_log_analysis` / `contract_learning_assistant` / `contract_pr_review` / `contract_daily_report` / `contract_interview_scheduler` / `contract_competitor_monitor` / `contract_test_report` / `contract_onboarding_guide` / `contract_risk_alert`
+
+### 用户契约 CRUD
+
+| 方法 | 路径 | 说明 |
+|------|------|------|
+| GET | `/scene-contracts` | 用户契约列表 |
+| POST | `/scene-contracts` | 创建自定义契约 |
+| GET | `/scene-contracts/{id}` | 契约详情（含预置） |
+| PUT | `/scene-contracts/{id}` | 更新契约 |
+| DELETE | `/scene-contracts/{id}` | 删除契约 |
+
+### DSL 操作
+
+| 方法 | 路径 | 说明 |
+|------|------|------|
+| POST | `/scene-contracts/generate-prompt` | 从契约生成 system prompt |
+| POST | `/scene-contracts/evaluate` | 生成验收评估 prompt |
+| POST | `/scene-contracts/validate-input` | 根据契约验证用户输入 |
+
+### 契约数据结构
+
+```json
+{
+    "name": "契约名称",
+    "goal": "场景目标描述",
+    "role": "Agent 扮演的角色",
+    "constraints": ["约束1", "约束2"],
+    "forbidden_actions": ["禁止事项"],
+    "deliverables": [{"name": "产出物", "format": "markdown", "description": "描述"}],
+    "acceptance_criteria": ["验收条件1"],
+    "examples": [{"input": "输入示例", "output": "输出示例"}],
+    "category": "分类",
+    "tags": ["标签"],
+    "input_schema": {},
+    "output_schema": {}
+}
+```
+
+---
+
 ## 健康检查
 
 ```http