feat: enhance spec loading capabilities and add new categories

- Added support for loading specs from new categories: debug, test, review, and validation.
- Updated various agents and skills to include instructions for loading project context from the new spec categories.
- Introduced new spec documents for test conventions, review standards, and validation rules to improve project guidelines.
- Enhanced the frontend to support new watcher settings and display auto-watch status.
- Improved the spec index builder to accommodate new categories and ensure proper loading of specifications.

.claude/skills/workflow-test-fix/phases/02-test-context-gather.md

@@ -346,6 +346,7 @@ Execute complete context-search-agent workflow for implementation planning:
 ### Phase 1: Initialization & Pre-Analysis
 1. **Project State Loading**:
    - Run: \`ccw spec load --category execution\` to load project context, tech stack, and guidelines.
+   - Run: \`ccw spec load --category test\` to load test framework conventions, coverage targets, and fixtures.
    - If files don't exist, proceed with fresh analysis.
 2. **Detection**: Check for existing context-package (early exit if valid)
 3. **Foundation**: Initialize CodexLens, get project structure, load docs

.claude/skills/workflow-test-fix/phases/05-test-cycle-execute.md

@@ -249,7 +249,8 @@ Task(
     ${selectedStrategy} - ${strategyDescription}
 
     ## PROJECT CONTEXT (MANDATORY)
-    1. Run: \`ccw spec load --category execution\` (tech stack, test framework, build system, constraints)
+    1. Run: \`ccw spec load --category execution\` (tech stack, build system, constraints)
+    2. Run: \`ccw spec load --category test\` (test framework, coverage targets, conventions)
 
     ## MANDATORY FIRST STEPS
     1. Read test results: ${session.test_results_path}