refactor: rename source dir to bin, reorganize templates, remove personal info

- Rename myclaude/ source directory → bin/
- Update all Python imports (myclaude.* → bin.*) and mock patch paths
- Update pyproject.toml: entry point and packages config
- Move workspace_template/ → templates/workspace/ for future extensibility
- Migrate .claude/skills/ to global ~/.claude/skills/ and remove local copies
- Remove SessionStart hook (sync-global.sh) from settings.local.json
- Remove unrelated script rename_funcs_to_snake.py
- Remove personal info (name, org, paths) from CLAUDE.md, README.md, settings
- Update .gitignore with standard Python/runtime exclusions
- Clean .DS_Store, __pycache__, .mypy_cache, .pytest_cache, .ruff_cache,
  .playwright-mcp runtime files

.gitignore

@@ -1,12 +1,26 @@
+# Python
 .venv/
 __pycache__/
 *.py[cod]
 *.egg-info/
 dist/
 build/
+.mypy_cache/
+.pytest_cache/
+.ruff_cache/
+
 # Removed: workspace/ is now external (~/workspace by default)
 # Removed: knowledge/ is no longer used
 
+# Editor / OS
+.DS_Store
+*.swp
+*.swo
+*~
+.vscode/
+.idea/
+
+# Project runtime
 .claude/
 .obsidian/