feat(git-hangman-lab): add create-pr command

- Add create-pr script for creating pull requests via API
- Auto-generate access token if not present
- Integrate into git-ctrl dispatcher
- Update SKILL.md with new command documentation

git-hangman-lab/SKILL.md

@@ -43,6 +43,16 @@ Create a new git repository on git.hangman-lab.top.
 
 > **Note**: The repository will be created at `${AGENT_WORKSPACE}/${repo-name}` (default: `/root/.openclaw/workspace/workspace-mentor`)
 
+### Create Pull Request
+
+Create a pull request on git.hangman-lab.top.
+
+```bash
+{baseDir}/scripts/git-ctrl create-pr <repo-local-path> <head-branch> <base-branch> [pr-title] [pr-body]
+```
+
+> **Note**: The access token will be automatically generated if not found.
+
 ### Link Keycloak Account
 
 Link Keycloak account with Gitea (for OAuth binding).