feat(openclaw): add openclaw-superpowers extension

- Add openclaw-superpowers as a flake input.
- Implement superpowers option in openclaw-podman module.
- Automate skill symlinking, state directory creation, and cron registration.
- Ensure PyYAML is installed within the container via a post-startup service.
- Enable superpowers in the main configuration.

flake.lock

@@ -32,9 +32,26 @@
         "type": "github"
       }
     },
+    "openclaw-superpowers": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1773810424,
+        "narHash": "sha256-fGx2ZxjL+SW9e3Iejja0WJV5lLjDkdz6hKXs07EVREc=",
+        "owner": "ArchieIndian",
+        "repo": "openclaw-superpowers",
+        "rev": "db78b90144f966441f1946a910330be02f1cd360",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ArchieIndian",
+        "repo": "openclaw-superpowers",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "nixpkgs": "nixpkgs",
+        "openclaw-superpowers": "openclaw-superpowers",
         "sops-nix": "sops-nix"
       }
     },