🔧 chore(thirdparty): generalize skills sync pipeline

replace the superpowers-only workflow with a manifest-driven pipeline
sync ui-ux-pro-max into codex/skills and document source lists
fix the prettier path test so the Python suite passes on Windows

tests/test_format_md_action.py

@@ -26,14 +26,22 @@ class FormatMdActionTests(unittest.TestCase):
 
             bin_dir = root / "bin"
             bin_dir.mkdir()
-            prettier = bin_dir / "prettier"
-            prettier.write_text(
-                "#!/usr/bin/env python3\n"
-                "from pathlib import Path\n"
-                "Path(\".prettier_called\").write_text(\"ok\")\n",
-                encoding="utf-8",
-            )
-            prettier.chmod(0o755)
+            if os.name == "nt":
+                prettier = bin_dir / "prettier.cmd"
+                prettier.write_text(
+                    "@echo off\r\n"
+                    "echo ok> .prettier_called\r\n",
+                    encoding="utf-8",
+                )
+            else:
+                prettier = bin_dir / "prettier"
+                prettier.write_text(
+                    "#!/usr/bin/env python3\n"
+                    "from pathlib import Path\n"
+                    "Path(\".prettier_called\").write_text(\"ok\")\n",
+                    encoding="utf-8",
+                )
+                prettier.chmod(0o755)
 
             config_body = f"""
 [playbook]
@@ -47,7 +55,7 @@ project_root = \"{tmp_dir}\"
             config_path.write_text(config_body, encoding="utf-8")
 
             env = os.environ.copy()
-            env["PATH"] = f"{bin_dir}:{env.get('PATH', '')}"
+            env["PATH"] = f"{bin_dir}{os.pathsep}{env.get('PATH', '')}"
 
             result = run_cli("-config", str(config_path), env=env)
             self.assertEqual(result.returncode, 0, msg=result.stderr)