ci: trim ci.yaml to frontend quality gates

lint/typecheck/test pass; the build job failed only on
actions/upload-artifact@v4, which Gitea Actions doesn't support. Drop the
artifact upload and the placeholder production deploy job (the real build +
deploy is build-dev.yaml's pull-based release). Keep lint, typecheck, test,
and a build compile-check.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.gitea/workflows/ci.yaml

@@ -1,4 +1,8 @@
-name: CI/CD
+name: CI
+
+# Frontend quality gates (lint, typecheck, test, build-check).
+# Actual build + deploy of the hub is handled by build-dev.yaml
+# (pull-based release → Pi self-update).
 
 on:
   push:
@@ -23,6 +27,9 @@ jobs:
       - run: npm ci
       - run: npm test
 
+  # Verify the frontend compiles. No artifact upload — Gitea Actions
+  # doesn't support upload-artifact@v4, and build-dev.yaml produces the
+  # real, deployed artifact anyway.
   build:
     needs: test
     runs-on: go-react
@@ -30,24 +37,3 @@ jobs:
       - uses: actions/checkout@v4
       - run: npm ci
       - run: npm run build
-      - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: dist
-          path: cmd/server/src/dist/
-
-  deploy:
-    needs: build
-    runs-on: go-react
-    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
-    environment: production
-    steps:
-      - uses: actions/download-artifact@v4
-        with:
-          name: dist
-          path: dist/
-      - name: Deploy static files
-        run: |
-          echo "Deploying to production..."
-          echo "Deploy target: /var/www/remote-rig/"
-          echo "Placeholder — configure deploy target before merging to main"