Add WHOOSH search service with BACKBEAT integration

Complete implementation:
- Go-based search service with PostgreSQL and Redis backend
- BACKBEAT SDK integration for beat-aware search operations
- Docker containerization with multi-stage builds
- Comprehensive API endpoints for project analysis and search
- Database migrations and schema management
- GITEA integration for repository management
- Team composition analysis and recommendations

Key features:
- Beat-synchronized search operations with timing coordination
- Phase-based operation tracking (started → querying → ranking → completed)
- Docker Swarm deployment configuration
- Health checks and monitoring
- Secure configuration with environment variables

Architecture:
- Microservice design with clean API boundaries
- Background processing for long-running analysis
- Modular internal structure with proper separation of concerns
- Integration with CHORUS ecosystem via BACKBEAT timing

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

docs/GITEA_INTEGRATION.md

@@ -83,32 +83,33 @@ GiteaService._setup_bzzz_labels()
 GITEA API: Create Labels
     ↓
 Project Ready for BZZZ Coordination
+Project Ready for CHORUS Coordination
 ```
 
-### BZZZ → GITEA Task Coordination
+### CHORUS → GITEA Task Coordination
 
 ```
-BZZZ Agent Discovery
+CHORUS Agent Discovery
     ↓
 GiteaService.get_bzzz_tasks()
     ↓
 GITEA API: List Issues with 'bzzz-task' label
     ↓
-BZZZ Agent Claims Task
+CHORUS Agent Claims Task
     ↓
 GITEA API: Assign Issue + Add Comment
     ↓
-BZZZ Agent Completes Task
+CHORUS Agent Completes Task
     ↓
 GITEA API: Close Issue + Results Comment
 ```
 
-## 🏷️ **BZZZ Label System**
+## 🏷️ **CHORUS Task Label System**
 
-The following labels are automatically created for BZZZ task coordination:
+The following labels are used for CHORUS task coordination (primary label name remains `bzzz-task` for compatibility):
 
-### Core BZZZ Labels
-- **`bzzz-task`** - Task available for BZZZ agent coordination
+### Core Labels
+- **`bzzz-task`** - Task available for CHORUS agent coordination
 - **`in-progress`** - Task currently being worked on  
 - **`completed`** - Task completed by BZZZ agent
 
@@ -161,7 +162,7 @@ When creating a new project, WHOOSH automatically:
    - Sets up repository with README, .gitignore, LICENSE
    - Configures default branch and visibility
 
-2. **Installs BZZZ Labels**
+2. **Installs CHORUS Labels**
    - Adds all task coordination labels
    - Sets up proper color coding and descriptions
 
@@ -171,16 +172,16 @@ When creating a new project, WHOOSH automatically:
 
 4. **Configures Integration**
    - Links project to repository in WHOOSH database
-   - Enables BZZZ agent discovery
+   - Enables CHORUS agent discovery
 
-## 🤖 **BZZZ Agent Integration**
+## 🤖 **CHORUS Agent Integration**
 
 ### Task Discovery
 
-BZZZ agents discover tasks by:
+CHORUS agents discover tasks by:
 
 ```go
-// In BZZZ agent
+// In CHORUS agent
 config := &gitea.Config{
     BaseURL:     "http://ironwood:3000",
     AccessToken: os.Getenv("GITEA_TOKEN"),
@@ -318,4 +319,4 @@ For issues with GITEA integration:
 
 **GITEA Integration Status**: ✅ **Production Ready**  
 **BZZZ Coordination**: ✅ **Active**  
-**Agent Discovery**: ✅ **Functional**
+**Agent Discovery**: ✅ **Functional**