feat: Enhance search functionality with quality tiers and scoped indexing

- Updated `search_code` function to include a `quality` parameter for search quality tiers: "fast", "balanced", "thorough", and "auto".
- Introduced `search_scope` function to limit search results to a specific directory scope.
- Added `index_scope` function for indexing a specific directory without re-indexing the entire project.
- Refactored `SearchPipeline` to support quality-based routing in the `search` method.
- Implemented `Shard` and `ShardManager` classes to manage multiple index shards with LRU eviction and efficient file routing.
- Added debounce functionality in `IncrementalIndexer` to batch file events and reduce redundant processing.
- Enhanced `FileWatcher` to integrate with `IncrementalIndexer` for improved event handling.

.claude/skills/team-coordinate/SKILL.md

@@ -241,7 +241,7 @@ Coordinator supports `resume` / `continue` for interrupted sessions:
 3. Audit TaskList -> reconcile session state <-> task status
 4. Reset in_progress -> pending (interrupted tasks)
 5. Rebuild team and spawn needed workers only
-6. Create missing tasks with correct blockedBy
+6. Create missing tasks, set dependencies via TaskUpdate({ addBlockedBy })
 7. Kick first executable task -> Phase 4 coordination loop
 
 ---

.claude/skills/team-coordinate/roles/coordinator/role.md

@@ -144,7 +144,7 @@ For callback/check/resume/adapt/complete: load `@commands/monitor.md` and execut
 4. Detect fast-advance orphans (in_progress without recent activity) -> reset to pending
 5. Determine remaining pipeline from reconciled state
 6. Rebuild team if disbanded (TeamCreate + spawn needed workers only)
-7. Create missing tasks with correct blockedBy dependencies
+7. Create missing tasks, set dependencies via TaskUpdate({ addBlockedBy })
 8. Verify dependency chain integrity
 9. Update session file with reconciled state
 10. Kick first executable task's worker -> Phase 4
@@ -278,7 +278,7 @@ mcp__ccw-tools__team_msg({
 Delegate to `@commands/dispatch.md` which creates the full task chain:
 1. Reads dependency_graph from task-analysis.json
 2. Topological sorts tasks
-3. Creates tasks via TaskCreate with correct blockedBy
+3. Creates tasks via TaskCreate, then sets dependencies via TaskUpdate({ addBlockedBy })
 4. Assigns owner based on role mapping from task-analysis.json
 5. Includes `Session: <session-folder>` in every task description
 6. Sets InnerLoop flag for multi-task roles