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-test-fix/phases/01-session-start.md

@@ -0,0 +1,60 @@
+# Phase 1: Session Start (session-start)
+
+Detect input mode and create test workflow session.
+
+## Objective
+
+- Detect input mode (session ID vs description)
+- Create test workflow session with appropriate metadata
+
+## Execution
+
+### Step 1.0: Detect Input Mode
+
+```
+// Automatic mode detection based on input pattern
+if (input.startsWith("WFS-")) {
+  MODE = "session"
+  // Load source session to preserve original task description
+  Read(".workflow/active/[sourceSessionId]/workflow-session.json")
+} else {
+  MODE = "prompt"
+}
+```
+
+### Step 1.1: Create Test Session
+
+```
+// Session Mode - preserve original task description
+Skill(skill="workflow:session:start", args="--type test --new \"Test validation for [sourceSessionId]: [originalTaskDescription]\"")
+
+// Prompt Mode - use user's description directly
+Skill(skill="workflow:session:start", args="--type test --new \"Test generation for: [description]\"")
+```
+
+**Parse Output**:
+- Extract: `SESSION_ID: WFS-test-[slug]` (store as `testSessionId`)
+
+**Validation**:
+- Session Mode: Source session `.workflow/active/[sourceSessionId]/` exists with completed IMPL tasks
+- Both Modes: New test session directory created with metadata
+
+**TodoWrite**: Mark step 1.1 completed, step 1.2 in_progress
+
+### Session Metadata
+
+**File**: `workflow-session.json`
+
+| Mode | Fields |
+|------|--------|
+| **Session** | `type: "test"`, `source_session_id: "[sourceId]"` |
+| **Prompt** | `type: "test"` (no source_session_id) |
+
+## Output
+
+- **Variable**: `testSessionId` (WFS-test-xxx)
+- **Variable**: `MODE` (session | prompt)
+
+## Next Phase
+
+Continue to [Phase 2: Test Context Gather](02-test-context-gather.md).