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

tests/test_project_root.py

@@ -4,7 +4,7 @@ import os
 from pathlib import Path
 from unittest.mock import patch
 
-from myclaude.project_root import get_myclaude_project_root, get_workspace_root
+from bin.project_root import get_myclaude_project_root, get_workspace_root
 
 
 class TestGetMyclaudeProjectRoot:
@@ -24,7 +24,7 @@ class TestGetMyclaudeProjectRoot:
         """When not in a repo, fallback to ~/.myclaude."""
         with patch.dict(os.environ, {}, clear=True):
             with patch("pathlib.Path.cwd", side_effect=OSError):
-                with patch("myclaude.project_root._pyproject_names_myclaude", return_value=False):
+                with patch("bin.project_root._pyproject_names_myclaude", return_value=False):
                     result = get_myclaude_project_root()
                     assert result == Path.home() / ".myclaude"
 
@@ -67,7 +67,7 @@ class TestGetWorkspaceRoot:
         """When no env var and no project workspace, default to ~/workspace."""
         with (
             patch.dict(os.environ, {}, clear=True),
-            patch("myclaude.project_root.get_myclaude_project_root", return_value=tmp_path / ".myclaude"),
+            patch("bin.project_root.get_myclaude_project_root", return_value=tmp_path / ".myclaude"),
             patch.dict(os.environ, {}, clear=True),
         ):
             with patch.dict(os.environ, {}, clear=True):