feat: Implement multi-phase project analysis workflow with Mermaid diagram generation and CPCC compliance documentation

- Phase 3: Added Mermaid diagram generation for system architecture, function modules, algorithms, class diagrams, sequence diagrams, and error flows.
- Phase 4: Assembled analysis and diagrams into a structured CPCC-compliant document with section templates and figure numbering.
- Phase 5: Developed compliance review process with iterative refinement based on analysis findings and user feedback.
- Added CPCC compliance requirements and quality standards for project analysis reports.
- Established a comprehensive project analysis skill with detailed execution flow and report types.
- Enhanced error handling and recovery mechanisms throughout the analysis phases.

.claude/skills/project-analyze/specs/quality-standards.md

@@ -0,0 +1,115 @@
+# Quality Standards
+
+Quality gates and requirements for project analysis reports.
+
+## When to Use
+
+| Phase | Usage | Section |
+|-------|-------|---------|
+| Phase 4 | Check report structure before assembly | Report Requirements |
+| Phase 5 | Validate before each iteration | Quality Gates |
+| Phase 5 | Handle failures during refinement | Error Handling |
+
+---
+
+## Report Requirements
+
+**Use in Phase 4**: Ensure report includes all required elements.
+
+| Requirement | Check | How to Fix |
+|-------------|-------|------------|
+| Executive Summary | 3-5 key takeaways | Extract from analysis findings |
+| Visual diagrams | Valid Mermaid syntax | Use `../_shared/mermaid-utils.md` |
+| Code references | `file:line` format | Link to actual source locations |
+| Recommendations | Actionable, specific | Derive from analysis insights |
+| Consistent depth | Match user's depth level | Adjust detail per config.depth |
+
+---
+
+## Quality Gates
+
+**Use in Phase 5**: Run these checks before asking user questions.
+
+```javascript
+function runQualityGates(report, config, diagrams) {
+  const gates = [
+    {
+      name: "focus_areas_covered",
+      check: () => config.focus_areas.every(area =>
+        report.toLowerCase().includes(area.toLowerCase())
+      ),
+      fix: "Re-analyze missing focus areas"
+    },
+    {
+      name: "diagrams_valid",
+      check: () => diagrams.every(d => d.valid),
+      fix: "Regenerate failed diagrams with mermaid-utils"
+    },
+    {
+      name: "code_refs_accurate",
+      check: () => extractCodeRefs(report).every(ref => fileExists(ref)),
+      fix: "Update invalid file references"
+    },
+    {
+      name: "no_placeholders",
+      check: () => !report.includes('[TODO]') && !report.includes('[PLACEHOLDER]'),
+      fix: "Fill in all placeholder content"
+    },
+    {
+      name: "recommendations_specific",
+      check: () => !report.includes('consider') || report.includes('specifically'),
+      fix: "Make recommendations project-specific"
+    }
+  ];
+
+  const results = gates.map(g => ({...g, passed: g.check()}));
+  const allPassed = results.every(r => r.passed);
+
+  return { allPassed, results };
+}
+```
+
+**Integration with Phase 5**:
+```javascript
+// In 05-iterative-refinement.md
+const { allPassed, results } = runQualityGates(report, config, diagrams);
+
+if (allPassed) {
+  // All gates passed → ask user to confirm or finalize
+} else {
+  // Gates failed → include failed gates in discovery questions
+  const failedGates = results.filter(r => !r.passed);
+  discoveries.qualityIssues = failedGates;
+}
+```
+
+---
+
+## Error Handling
+
+**Use when**: Encountering errors during any phase.
+
+| Error | Detection | Recovery |
+|-------|-----------|----------|
+| CLI timeout | Bash exits with timeout | Reduce scope via `config.scope`, retry |
+| Exploration failure | Agent returns error | Fall back to `Read` + `Grep` directly |
+| User abandons | User selects "cancel" | Save to `iterations/`, allow resume |
+| Invalid scope path | Path doesn't exist | `AskUserQuestion` to correct path |
+| Diagram validation fails | `validateMermaidSyntax` returns issues | Regenerate with stricter escaping |
+
+**Recovery Flow**:
+```javascript
+try {
+  await executePhase(phase);
+} catch (error) {
+  const recovery = ERROR_HANDLERS[error.type];
+  if (recovery) {
+    await recovery.action(error, config);
+    // Retry phase or continue
+  } else {
+    // Save progress and ask user
+    Write(`${outputDir}/error-state.json`, { phase, error, config });
+    AskUserQuestion({ question: "遇到错误，如何处理？", ... });
+  }
+}
+```