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

pyproject.toml

@@ -9,7 +9,7 @@ dependencies = [
 ]
 
 [project.scripts]
-myclaude = "myclaude.cli:cli"
+myclaude = "bin.cli:cli"
 
 [dependency-groups]
 dev = ["pytest>=8.0"]
@@ -23,7 +23,7 @@ requires = ["hatchling"]
 build-backend = "hatchling.build"
 
 [tool.hatch.build.targets.wheel]
-packages = ["myclaude"]
+packages = ["bin"]
 
 [tool.black]
 line-length = 80