refactor(self-mgmt): centralize manual file list for install/uninstall

bin/commands/self_mgmt.py

@@ -9,6 +9,15 @@ from pathlib import Path
 import click
 
 
+# 手动安装的文件清单（pip 管理范围外，uninstall 时需要额外清理）
+_MANUAL_FILES: dict[str, list[Path]] = {
+    "completions": [
+        Path.home() / ".local" / "bin" / "completions" / "_mytoolkit",
+        Path.home() / ".local" / "bin" / "completions" / "mytoolkit.bash",
+    ],
+}
+
+
 def _get_project_root() -> Path:
     """Get mytoolkit project root from source tree."""
     return Path(__file__).parent.parent.parent
@@ -78,11 +87,15 @@ def _uninstall() -> None:
         check=False,
     )
 
-    comp_dir = Path.home() / ".local" / "bin" / "completions"
-    for f in (comp_dir / "_mytoolkit", comp_dir / "mytoolkit.bash"):
-        if f.exists() or f.is_symlink():
-            f.unlink()
-            click.secho(f"Removed {f}", fg="green")
+    removed = 0
+    for paths in _MANUAL_FILES.values():
+        for f in paths:
+            if f.exists() or f.is_symlink():
+                f.unlink()
+                click.secho(f"Removed {f}", fg="green")
+                removed += 1
+    if removed == 0:
+        click.secho("No manual files to clean up.", fg="cyan")
 
 
 @click.command(name="update")