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

bin/commands/__init__.py

@@ -0,0 +1,8 @@
+"""CLI subcommands."""
+
+from .update import update_cmd
+
+# alias: upgrade is the same as update
+upgrade_cmd = update_cmd
+
+__all__ = ["update_cmd", "upgrade_cmd"]

bin/commands/update.py

@@ -0,0 +1,54 @@
+"""Reinstall myclaude from the local repo."""
+
+import subprocess
+import sys
+from pathlib import Path
+
+import click
+from rich.console import Console
+
+from bin.project_root import get_myclaude_project_root
+
+console = Console()
+stderr_console = Console(stderr=True)
+
+
+def _run_make_install(root: Path) -> int:
+    return subprocess.run(
+        ["make", "install"],
+        cwd=str(root),
+        check=False,
+    ).returncode
+
+
+def _run_pip_editable(root: Path) -> int:
+    cmd = [sys.executable, "-m", "pip", "install", "-e", str(root)]
+    return subprocess.run(cmd, cwd=str(root), check=False).returncode
+
+
+@click.command("update")
+def update_cmd() -> None:
+    """Reinstall myclaude from this repository (make install, or pip install -e)."""
+    root = get_myclaude_project_root()
+    fallback = Path.home() / ".myclaude"
+    if root == fallback:
+        stderr_console.print(
+            "[red]Not inside myclaude repo.[/red] Set [cyan]MYCLAUDE_PROJECT_ROOT[/cyan] "
+            "or run from the clone.",
+        )
+        raise SystemExit(1)
+
+    console.print("[bold cyan]Updating myclaude…[/bold cyan]")
+    makefile = root / "Makefile"
+    if makefile.is_file():
+        rc = _run_make_install(root)
+        if rc != 0:
+            console.print("[yellow]make install failed, trying pip -e…[/yellow]")
+            rc = _run_pip_editable(root)
+    else:
+        rc = _run_pip_editable(root)
+
+    if rc != 0:
+        stderr_console.print("[red]Update failed.[/red]")
+        raise SystemExit(rc)
+    console.print("[green]myclaude updated.[/green]")