refactor: PM Agent complete independence from Serena MCP (#438)

* refactor: PM Agent complete independence from external MCP servers

Change PM Agent to be fully operational without any MCP server dependencies:

Architecture Changes:
- mcp-servers: [] (all MCPs are optional enhancements only)
- Session memory: Local file-based (docs/memory/) - no Serena MCP required
- Code structure analysis: Glob-based instead of Serena symbol overview

Core vs Optional Tools:
Core (No MCP):
  - Read, Write, Edit, MultiEdit
  - Grep, Glob, Bash
  - TodoWrite, WebSearch, WebFetch

Optional Enhancement (if available):
  - sequential: Advanced reasoning
  - context7: Framework documentation
  - magic: UI component generation
  - morphllm: Bulk code transformations
  - playwright: Browser E2E testing
  - airis-mcp-gateway: Dynamic tool loading

Design Philosophy:
- External dependencies: None (100% operational without MCPs)
- Optional enhancements: MCPs add advanced capabilities when available
- Automatic fallback: Core tools used when MCPs unavailable
- Complete independence: Basic functionality requires zero external dependencies

Benefits:
- Reliable: Always works regardless of MCP availability
- Transparent: Local file-based memory (Git-manageable)
- Scalable: Enhanced capabilities via optional MCP integration
- Maintainable: No breaking changes from external MCP updates

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

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

* refactor: PM Agent complete independence from Serena MCP

Remove all Serena MCP dependencies from PM Agent implementation:
- Replace memory operations with local file operations
- Replace think_about_* functions with self-evaluation checklists
- Implement repository-scoped memory in docs/memory/

Benefits:
- No external MCP server dependency
- Human-readable Markdown/JSON files
- Git-manageable session state
- Repository-scoped isolation

Files changed:
- superclaude/agents/pm-agent.md: Full Serena removal
- superclaude/commands/pm.md: Remove remaining references
- docs/memory/: New local memory structure

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

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

---------

Co-authored-by: kazuki <kazuki@kazukinoMacBook-Air.local>
Co-authored-by: Claude <noreply@anthropic.com>

docs/memory/last_session.md

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+# Last Session Summary
+
+**Date**: 2025-10-16
+**Duration**: ~30 minutes
+**Goal**: Remove Serena MCP dependency from PM Agent
+
+## What Was Accomplished
+
+✅ **Completed Serena MCP Removal**:
+- `superclaude/agents/pm-agent.md`: Replaced all Serena MCP operations with local file operations
+- `superclaude/commands/pm.md`: Removed remaining `think_about_*` function references
+- Memory operations now use `Read`, `Write`, `Bash` tools with `docs/memory/` files
+
+✅ **Replaced Memory Operations**:
+- `list_memories()` → `Bash "ls docs/memory/"`
+- `read_memory("key")` → `Read docs/memory/key.md` or `.json`
+- `write_memory("key", value)` → `Write docs/memory/key.md` or `.json`
+
+✅ **Replaced Self-Evaluation Functions**:
+- `think_about_task_adherence()` → Self-evaluation checklist (markdown)
+- `think_about_whether_you_are_done()` → Completion checklist (markdown)
+
+## Issues Encountered
+
+None. Implementation was straightforward.
+
+## What Was Learned
+
+- **Local file-based memory is simpler**: No external MCP server dependency
+- **Repository-scoped isolation**: Memory naturally scoped to git repository
+- **Human-readable format**: Markdown and JSON files visible in version control
+- **Checklists > Functions**: Explicit checklists are clearer than function calls
+
+## Quality Metrics
+
+- **Files Modified**: 2 (pm-agent.md, pm.md)
+- **Serena References Removed**: ~20 occurrences
+- **Test Status**: Ready for testing in next session

docs/memory/next_actions.md

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+# Next Actions
+
+## Immediate Tasks
+
+1. **Test PM Agent without Serena**:
+   - Start new session
+   - Verify PM Agent auto-activation
+   - Check memory restoration from `docs/memory/` files
+   - Validate self-evaluation checklists work
+
+2. **Document the Change**:
+   - Create `docs/patterns/local-file-memory-pattern.md`
+   - Update main README if necessary
+   - Add to changelog
+
+## Future Enhancements
+
+3. **Optimize Memory File Structure**:
+   - Consider `.jsonl` format for append-only logs
+   - Add timestamp rotation for checkpoints
+
+4. **Continue airis-mcp-gateway Optimization**:
+   - Implement lazy loading for tool descriptions
+   - Reduce initial token load from 47 tools
+
+## Blockers
+
+None currently.

docs/memory/patterns_learned.jsonl

@@ -0,0 +1 @@
+{"pattern":"local-file-memory","description":"PM Agent uses local files in docs/memory/ instead of Serena MCP","date":"2025-10-16"}

docs/memory/pm_context.md

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+# PM Agent Context
+
+**Project**: SuperClaude_Framework
+**Type**: AI Agent Framework
+**Tech Stack**: Claude Code, MCP Servers, Markdown-based configuration
+**Current Focus**: Removing Serena MCP dependency from PM Agent
+
+## Project Overview
+
+SuperClaude is a comprehensive framework for Claude Code that provides:
+- Persona-based specialized agents (frontend, backend, security, etc.)
+- MCP server integrations (Context7, Magic, Morphllm, Sequential, etc.)
+- Slash command system for workflow automation
+- Self-improvement workflow with PDCA cycle
+
+## Architecture
+
+- `superclaude/agents/` - Agent persona definitions
+- `superclaude/commands/` - Slash command definitions
+- `docs/` - Documentation and patterns
+- `docs/memory/` - PM Agent session state (local files)
+- `docs/pdca/` - PDCA cycle documentation per feature
+
+## Active Patterns
+
+- **Repository-Scoped Memory**: Local file-based memory in `docs/memory/`
+- **PDCA Cycle**: Plan → Do → Check → Act documentation workflow
+- **Self-Evaluation Checklists**: Replace Serena MCP `think_about_*` functions
+
+## Known Issues
+
+None currently.
+
+## Last Updated
+
+2025-10-16