feat(ci): Auto-merge PRs after all type checks pass

Uses Gitea API to merge PR automatically when all typecheck jobs succeed.
Requires gitea_token secret in Woodpecker.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.woodpecker/.ci.yml

@@ -45,6 +45,31 @@ steps:
     when:
       event: pull_request
 
+  # ===========================================
+  # AUTO-MERGE: Merge PR after all checks pass
+  # ===========================================
+  auto-merge:
+    image: alpine:latest
+    environment:
+      GITEA_TOKEN:
+        from_secret: gitea_token
+    commands:
+      - apk add --no-cache curl
+      - |
+        echo "Merging PR #${CI_COMMIT_PULL_REQUEST}..."
+        curl -s -X POST \
+          -H "Authorization: token $GITEA_TOKEN" \
+          -H "Content-Type: application/json" \
+          -d '{"Do":"merge"}' \
+          "https://code.cannabrands.app/api/v1/repos/Creationshop/dispensary-scraper/pulls/${CI_COMMIT_PULL_REQUEST}/merge"
+    depends_on:
+      - typecheck-backend
+      - typecheck-cannaiq
+      - typecheck-findadispo
+      - typecheck-findagram
+    when:
+      event: pull_request
+
   # ===========================================
   # MASTER DEPLOY: Parallel Docker builds
   # ===========================================