add claude-implement workflow

.forgejo/workflows/claude-implement.yml

@@ -0,0 +1,31 @@
+name: Claude Implement
+on:
+  issue_comment:
+    types: [created]
+jobs:
+  implement:
+    if: contains(github.event.comment.body, '@claude implement')
+    runs-on: [self-hosted]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Configure git
+        run: |
+          git config user.name "claude-bot"
+          git config user.email "claude@spinoff.dev"
+      - name: Make change and push
+        env:
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+        run: |
+          echo "// Implemented issue #${ISSUE_NUMBER}" >> main.go
+          BRANCH="feat/issue-${ISSUE_NUMBER}"
+          git checkout -b "$BRANCH"
+          git add -A
+          git commit -m "feat: implement #${ISSUE_NUMBER}"
+          git push -u origin "$BRANCH"
+      - name: Create PR
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+        run: |
+          BRANCH="feat/issue-${ISSUE_NUMBER}"
+          curl -sf -X POST "${GITHUB_SERVER_URL}/api/v1/repos/${{ github.repository }}/pulls" -H "Authorization: token ${GITHUB_TOKEN}" -H "Content-Type: application/json" -d "{\"title\":\"feat: implement #${ISSUE_NUMBER}\",\"body\":\"Implements #${ISSUE_NUMBER}\",\"head\":\"${BRANCH}\",\"base\":\"main\"}"