refactor: Add tree-style execution flow diagrams to all workflow commands

Added tree-style execution process diagrams using ASCII art (├─, └─, │) to 34 workflow command files across three directories for improved readability and execution flow clarity.

## Changes by Directory

### workflow/ root (17 files)
- lite-plan.md, lite-execute.md, lite-fix.md
- plan.md, execute.md, replan.md
- status.md, review.md, review-fix.md
- review-session-cycle.md, review-module-cycle.md
- session commands (start, complete, resume, list)
- tdd-plan.md, tdd-verify.md, test-cycle-execute.md, test-gen.md, test-fix-gen.md

### workflow/ui-design/ (10 files)
- layout-extract.md, animation-extract.md, style-extract.md
- generate.md, import-from-code.md, codify-style.md
- imitate-auto.md, explore-auto.md
- reference-page-generator.md, design-sync.md

### workflow/tools/ (8 files)
- conflict-resolution.md, task-generate-agent.md, context-gather.md
- tdd-coverage-analysis.md, task-generate-tdd.md
- test-task-generate.md, test-concept-enhanced.md, test-context-gather.md

## Diagram Features
- Input parsing with flag enumeration
- Decision branching with conditional paths
- Phase/step hierarchy with clear nesting
- Mode detection and validation flows

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

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

.claude/commands/workflow/tdd-verify.md

@@ -18,6 +18,39 @@ allowed-tools: SlashCommand(*), TodoWrite(*), Read(*), Bash(gemini:*)
 - Validate TDD cycle execution
 - Generate compliance report
 
+## Execution Process
+
+```
+Input Parsing:
+   └─ Decision (session argument):
+      ├─ session-id provided → Use provided session
+      └─ No session-id → Auto-detect active session
+
+Phase 1: Session Discovery
+   ├─ Validate session directory exists
+   └─ TodoWrite: Mark phase 1 completed
+
+Phase 2: Task Chain Validation
+   ├─ Load all task JSONs from .task/
+   ├─ Extract task IDs and group by feature
+   ├─ Validate TDD structure:
+   │  ├─ TEST-N.M → IMPL-N.M → REFACTOR-N.M chain
+   │  ├─ Dependency verification
+   │  └─ Meta field validation (tdd_phase, agent)
+   └─ TodoWrite: Mark phase 2 completed
+
+Phase 3: Test Execution Analysis
+   └─ /workflow:tools:tdd-coverage-analysis
+      ├─ Coverage metrics extraction
+      ├─ TDD cycle verification
+      └─ Compliance score calculation
+
+Phase 4: Compliance Report Generation
+   ├─ Gemini analysis for comprehensive report
+   ├─ Generate TDD_COMPLIANCE_REPORT.md
+   └─ Return summary to user
+```
+
 ## 4-Phase Execution
 
 ### Phase 1: Session Discovery