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-ux-improve/roles/coordinator/commands/dispatch.md

@@ -30,7 +30,6 @@ Every task description uses structured format for clarity:
 ```
 TaskCreate({
   subject: "<TASK-ID>",
-  owner: "<role>",
   description: "PURPOSE: <what this task achieves> | Success: <measurable completion criteria>
 TASK:
   - <step 1: specific action>
@@ -46,9 +45,9 @@ EXPECTED: <deliverable path> + <quality criteria>
 CONSTRAINTS: <scope limits, focus areas>
 ---
 InnerLoop: <true|false>
-<additional-metadata-fields>",
-  blockedBy: [<dependency-list>]
+<additional-metadata-fields>"
 })
+TaskUpdate({ taskId: "<TASK-ID>", addBlockedBy: [<dependency-list>], owner: "<role>" })
 ```
 
 ### Standard Pipeline Tasks
@@ -57,7 +56,6 @@ InnerLoop: <true|false>
 ```
 TaskCreate({
   subject: "SCAN-001",
-  owner: "scanner",
   description: "PURPOSE: Scan UI components to identify interaction issues (unresponsive buttons, missing feedback, state not refreshing) | Success: Complete issue report with file:line references and severity classification
 TASK:
   - Detect framework (React/Vue) from project structure
@@ -73,17 +71,15 @@ CONTEXT:
 EXPECTED: artifacts/scan-report.md with structured issue list (severity: High/Medium/Low, file:line, description, category)
 CONSTRAINTS: Focus on interaction issues only, exclude styling/layout problems
 ---
-InnerLoop: false",
-  blockedBy: [],
-  status: "pending"
+InnerLoop: false"
 })
+TaskUpdate({ taskId: "SCAN-001", owner: "scanner" })
 ```
 
 **DIAG-001: Root Cause Diagnosis**
 ```
 TaskCreate({
   subject: "DIAG-001",
-  owner: "diagnoser",
   description: "PURPOSE: Diagnose root causes of identified UI issues | Success: Complete diagnosis report with fix recommendations for each issue
 TASK:
   - Load scan report from artifacts/scan-report.md
@@ -100,17 +96,15 @@ CONTEXT:
 EXPECTED: artifacts/diagnosis.md with root cause analysis (issue ID, root cause, pattern type, fix recommendation)
 CONSTRAINTS: Focus on actionable root causes, provide specific fix strategies
 ---
-InnerLoop: false",
-  blockedBy: ["SCAN-001"],
-  status: "pending"
+InnerLoop: false"
 })
+TaskUpdate({ taskId: "DIAG-001", addBlockedBy: ["SCAN-001"], owner: "diagnoser" })
 ```
 
 **DESIGN-001: Solution Design**
 ```
 TaskCreate({
   subject: "DESIGN-001",
-  owner: "designer",
   description: "PURPOSE: Design feedback mechanisms and state management solutions for identified issues | Success: Complete implementation guide with code patterns and examples
 TASK:
   - Load diagnosis report from artifacts/diagnosis.md
@@ -128,17 +122,15 @@ CONTEXT:
 EXPECTED: artifacts/design-guide.md with implementation guide (issue ID, solution design, code patterns, state management examples, UI binding templates)
 CONSTRAINTS: Solutions must be framework-appropriate, provide complete working examples
 ---
-InnerLoop: false",
-  blockedBy: ["DIAG-001"],
-  status: "pending"
+InnerLoop: false"
 })
+TaskUpdate({ taskId: "DESIGN-001", addBlockedBy: ["DIAG-001"], owner: "designer" })
 ```
 
 **IMPL-001: Code Implementation**
 ```
 TaskCreate({
   subject: "IMPL-001",
-  owner: "implementer",
   description: "PURPOSE: Generate fix code with proper state management, event handling, and UI feedback bindings | Success: All fixes implemented and validated
 TASK:
   - Load design guide from artifacts/design-guide.md
@@ -158,17 +150,15 @@ CONTEXT:
 EXPECTED: artifacts/fixes/ directory with all fix files, implementation summary in artifacts/fixes/README.md
 CONSTRAINTS: Maintain existing code style, ensure backward compatibility, validate all changes
 ---
-InnerLoop: true",
-  blockedBy: ["DESIGN-001"],
-  status: "pending"
+InnerLoop: true"
 })
+TaskUpdate({ taskId: "IMPL-001", addBlockedBy: ["DESIGN-001"], owner: "implementer" })
 ```
 
 **TEST-001: Test Validation**
 ```
 TaskCreate({
   subject: "TEST-001",
-  owner: "tester",
   description: "PURPOSE: Generate and run tests to verify fixes (loading states, error handling, state updates) | Success: Pass rate >= 95%, all critical fixes validated
 TASK:
   - Detect test framework (Jest/Vitest) from project
@@ -187,10 +177,9 @@ CONTEXT:
 EXPECTED: artifacts/test-report.md with test results (pass/fail counts, coverage metrics, fix iterations, remaining issues)
 CONSTRAINTS: Pass rate threshold: 95%, max fix iterations: 5
 ---
-InnerLoop: false",
-  blockedBy: ["IMPL-001"],
-  status: "pending"
+InnerLoop: false"
 })
+TaskUpdate({ taskId: "TEST-001", addBlockedBy: ["IMPL-001"], owner: "tester" })
 ```
 
 ---