chore: update claude configuration and rules from tzj/vs_offload

- Add /sc:git command with smart commit functionality
- Add /sc:ultra-think command for deep thinking
- Update .claude/rules/ with improved documentation:
  - commands.md: command usage guidelines
  - doc-management.md: documentation policy
  - no-extra-docs.md: documentation creation policy
  - gpu-testing.md: GPU type detection and testing rules
- Update .claude/settings.json with claude-flow MCP configuration

这些改进提供了更好的开发体验和工具支持。

.claude/rules/doc-management.md

@@ -0,0 +1,105 @@
+# Documentation Management
+
+## CLAUDE.md Content Policy
+
+**CLAUDE.md should only contain operational requirements:**
+- Environment setup (PYTHONPATH, GPU mutex)
+- Execution requirements (how to run tests/benchmarks)
+- Quick configuration reference
+- Documentation index (links to detailed docs)
+
+**Technical details should go to docs/:**
+- Architecture and design explanations
+- Implementation details and code flows
+- Debugging techniques
+- Memory analysis and profiling
+- Algorithm explanations
+
+## When Adding New Technical Content
+
+Follow this workflow:
+
+### Step 1: Analyze and Document
+
+If doing technical analysis (e.g., memory profiling):
+1. Calculate theoretical values using formulas
+2. Run actual tests to measure real values
+3. Compare theoretical vs actual (expect < 10% error for valid models)
+4. Document findings with both theory and empirical validation
+
+### Step 2: Create/Update docs/
+
+Create a new doc or update existing one in `docs/`:
+```
+docs/
+├── architecture_guide.md      # Core components, design, flows
+├── sparse_attention_guide.md  # Sparse attention methods
+├── layerwise_offload_memory_analysis.md  # Memory analysis
+├── debugging_guide.md         # Debugging techniques
+└── <new_topic>_guide.md       # New technical topic
+```
+
+### Step 3: Update CLAUDE.md Documentation Index
+
+Add entry to the Documentation Index table:
+```markdown
+| Document | Purpose |
+|----------|---------|
+| [`docs/new_doc.md`](docs/new_doc.md) | Brief description |
+```
+
+### Step 4: Refactor if Needed
+
+If CLAUDE.md grows too large (> 150 lines), refactor:
+1. Identify technical details that can be moved
+2. Create appropriate doc in docs/
+3. Replace detailed content with reference link
+4. Keep only operational essentials in CLAUDE.md
+
+## Documentation Structure Template
+
+For new technical docs:
+
+```markdown
+# Topic Guide
+
+Brief overview of what this document covers.
+
+## Section 1: Concepts
+- Key concepts and terminology
+
+## Section 2: Implementation
+- Code locations
+- Key methods/functions
+
+## Section 3: Details
+- Detailed explanations
+- Code examples
+
+## Section 4: Validation (if applicable)
+- Theoretical analysis
+- Empirical measurements
+- Comparison table
+```
+
+## Memory Analysis Template
+
+When documenting memory behavior:
+
+```markdown
+## Theoretical Calculation
+
+| Component | Formula | Size |
+|-----------|---------|------|
+| Buffer X | `param1 × param2 × dtype_size` | X MB |
+
+## Empirical Validation
+
+| Metric | Theoretical | Actual | Error |
+|--------|-------------|--------|-------|
+| Peak memory | X GB | Y GB | Z% |
+
+## Key Findings
+1. Finding 1
+2. Finding 2
+```