feat: Implement workflow phases for test generation and execution

- Added Phase 1: Session Start to detect input mode and create test workflow session.
- Added Phase 2: Test Context Gather to gather test context via coverage analysis or codebase scan.
- Added Phase 3: Test Concept Enhanced to analyze test requirements using Gemini and generate multi-layered test requirements.
- Added Phase 4: Test Task Generate to create test-specific tasks based on analysis results.
- Added Phase 5: Test Cycle Execute to manage iterative test execution and fix cycles with adaptive strategies.
- Introduced BottomPanel component for terminal dashboard with Queue and Inspector tabs.

.claude/skills/workflow-tdd/phases/02-context-gathering.md

@@ -0,0 +1,53 @@
+# Phase 2: Context Gathering
+
+Gather project context and analyze codebase for TDD planning.
+
+## Objective
+
+- Gather project context via context-search agents
+- Generate context-package.json with codebase analysis
+- Extract conflictRisk to determine Phase 4 execution
+
+## Execution
+
+### Step 2.1: Execute Context Gathering
+
+```javascript
+Skill(skill="workflow:tools:context-gather", args="--session [sessionId] \"TDD: [structured-description]\"")
+```
+
+**Use Same Structured Description**: Pass the same structured format from Phase 1.
+
+**Input**: `sessionId` from Phase 1
+
+### Step 2.2: Parse Output
+
+- Extract: context-package.json path (store as `contextPath`)
+- Typical pattern: `.workflow/active/[sessionId]/.process/context-package.json`
+
+**Validation**:
+- Context package path extracted
+- File exists and is valid JSON
+
+### Step 2.3: Extract conflictRisk
+
+```javascript
+const contextPackage = Read(contextPath)
+const conflictRisk = contextPackage.conflict_risk // "none" | "low" | "medium" | "high"
+```
+
+**Note**: conflictRisk determines whether Phase 4 (Conflict Resolution) will execute.
+
+**TodoWrite**: Mark phase 2 completed, phase 3 in_progress
+
+**After Phase 2**: Return to user showing Phase 2 results, then auto-continue to Phase 3
+
+## Output
+
+- **Variable**: `contextPath` (path to context-package.json)
+- **Variable**: `conflictRisk` ("none" | "low" | "medium" | "high")
+- **TodoWrite**: Mark Phase 2 completed, Phase 3 in_progress
+
+## Next Phase
+
+Return to orchestrator, then auto-continue to [Phase 3: Test Coverage Analysis](03-test-coverage-analysis.md).