Add RC pre-release trigger to PR check workflow

Automatically triggers a release-candidate build when a PR passes
branch policy and validation checks.

Authored-by: Moko Consulting

.mokogitea/workflows/pr-check.yml

@@ -222,3 +222,21 @@ jobs:
             echo "::error::CHANGELOG.md must be updated before merging to main. Add [skip changelog] to the PR title to bypass."
             exit 1
           fi
+
+  # ── Pre-Release RC Build ─────────────────────────────────────────────────
+  pre-release:
+    name: Build RC Package
+    runs-on: ubuntu-latest
+    needs: [branch-policy, validate]
+
+    steps:
+      - name: Trigger RC pre-release
+        env:
+          GA_TOKEN: ${{ secrets.GA_TOKEN }}
+          REPO: ${{ github.repository }}
+          BRANCH: ${{ github.head_ref }}
+          GITEA_URL: ${{ vars.GITEA_URL || 'https://git.mokoconsulting.tech' }}
+        run: |
+          curl -s -X POST             "${GITEA_URL}/api/v1/repos/${REPO}/actions/workflows/pre-release.yml/dispatches"             -H "Authorization: token ${GA_TOKEN}"             -H "Content-Type: application/json"             -d "{\"ref\":\"${BRANCH}\",\"inputs\":{\"stability\":\"release-candidate\"}}"
+          echo "### Pre-Release" >> $GITHUB_STEP_SUMMARY
+          echo "Triggered RC build on branch \`${BRANCH}\`" >> $GITHUB_STEP_SUMMARY