feat: Add global relationships management to GlobalSymbolIndex

- Introduced a new schema version (v2) with a global_relationships table.
- Implemented CRUD operations for file relationships, including update and delete functionalities.
- Added query capabilities for relationships by target and symbols.
- Created migration logic from v1 to v2 schema.
- Enhanced tests for global relationships, covering various scenarios including insertion, querying, and deletion.

docs: Add update-single command for generating module documentation

- Created a new command to generate manual-style documentation (CLAUDE.md) for a single module.
- Detailed execution process and implementation phases for the command.
- Included usage examples and error handling guidelines.

feat: Implement team command for CLI interface

- Added a new team command for logging and retrieving messages in a team message bus.
- Supported subcommands for logging, reading, listing, and checking status of messages.
- Included error handling and JSON output options.

test: Add comprehensive tests for global relationships

- Developed extensive tests for the global_relationships table in GlobalSymbolIndex.
- Covered schema creation, migration, CRUD operations, and performance benchmarks.
- Ensured project isolation and validated query functionalities for relationships.

.claude/commands/team/coordinate.md

@@ -34,6 +34,26 @@ mcp__ccw-tools__team_msg({ operation: "read", team: teamName, id: "MSG-003" })
 **日志位置**: `.workflow/.team-msg/{team-name}/messages.jsonl`
 **消息类型**: `plan_ready | plan_approved | plan_revision | task_unblocked | impl_complete | impl_progress | test_result | review_result | fix_required | error | shutdown`
 
+### CLI 回退
+
+当 `mcp__ccw-tools__team_msg` MCP 不可用时，使用 `ccw team` CLI 作为等效回退：
+
+```javascript
+// 回退: 将 MCP 调用替换为 Bash CLI（参数一一对应）
+// log
+Bash(`ccw team log --team "${teamName}" --from "coordinator" --to "planner" --type "plan_approved" --summary "Plan已批准" --json`)
+// list
+Bash(`ccw team list --team "${teamName}" --last 10 --json`)
+// list (带过滤)
+Bash(`ccw team list --team "${teamName}" --from "tester" --last 5 --json`)
+// status
+Bash(`ccw team status --team "${teamName}" --json`)
+// read
+Bash(`ccw team read --team "${teamName}" --id "MSG-003" --json`)
+```
+
+**参数映射**: `team_msg(params)` → `ccw team <operation> --team <team> [--from/--to/--type/--summary/--ref/--data/--id/--last] [--json]`
+
 ## Usage
 
 ```bash