Add benchmark results for fast3 and fast4, implement KeepAliveLspBridge, and add tests for staged strategies

- Added new benchmark result files: compare_2026-02-09_score_fast3.json and compare_2026-02-09_score_fast4.json.
- Implemented KeepAliveLspBridge to maintain a persistent LSP connection across multiple queries, improving performance.
- Created unit tests for staged clustering strategies in test_staged_stage3_fast_strategies.py, ensuring correct behavior of score and dir_rr strategies.

.codex/skills/parallel-dev-cycle/roles/code-developer.md

@@ -181,7 +181,7 @@ When tests fail during implementation, the CD agent MUST initiate the hypothesis
 |---------|-----------|--------|
 | **Test Failure** | Automated tests fail during implementation | Start debug workflow |
 | **Integration Conflict** | Blockers logged in `issues.md` | Start debug workflow |
-| **VAS Feedback** | Orchestrator provides validation failure feedback | Start debug workflow |
+| **VAS Feedback** | Main flow provides validation failure feedback | Start debug workflow |
 
 ### Debug Workflow Phases
 
@@ -356,7 +356,7 @@ PHASE_RESULT:
   - Used to guide development
 - **RA (Requirements Analyst)**: "Requirement FR-X means..."
   - Used for clarification
-- **Orchestrator**: "Fix these issues in next iteration"
+- **Main Flow**: "Fix these issues in next iteration"
   - Used for priority setting
 
 ### Sends To:
@@ -364,7 +364,7 @@ PHASE_RESULT:
   - Used for test generation
 - **RA (Requirements Analyst)**: "FR-X is unclear, need clarification"
   - Used for requirement updates
-- **Orchestrator**: "Found blocker X, need help"
+- **Main Flow**: "Found blocker X, need help"
   - Used for decision making
 
 ## Code Quality Standards

.codex/skills/parallel-dev-cycle/roles/exploration-planner.md

@@ -333,7 +333,7 @@ PHASE_RESULT:
 ### Receives From:
 - **RA (Requirements Analyst)**: "Definitive requirements, version X.Y.Z"
   - Used to structure plan
-- **Orchestrator**: "Continue planning with iteration X"
+- **Main Flow**: "Continue planning with iteration X"
   - Used to update plan for extensions
 
 ### Sends To:

.codex/skills/parallel-dev-cycle/roles/requirements-analyst.md

@@ -427,7 +427,7 @@ This section documents auto-generated requirements by the RA agent.
 
 ### Integration Notes
 
-- Self-enhancement is **internal to RA agent** - no orchestrator changes needed
+- Self-enhancement is **internal to RA agent** - no main flow changes needed
 - Read-only access to codebase and cycle state required
 - Enhanced requirements are **transparently marked** for user review
 - User can accept, modify, or reject enhanced requirements in next iteration

.codex/skills/parallel-dev-cycle/roles/validation-archivist.md

@@ -420,7 +420,7 @@ PHASE_RESULT:
 ### Sends To:
 - **CD (Developer)**: "These tests are failing, needs fixes"
   - Used for prioritizing work
-- **Orchestrator**: "Quality report and recommendations"
+- **Main Flow**: "Quality report and recommendations"
   - Used for final sign-off
 
 ## Quality Standards