chore: remove CI/CD workflow

.gitea/workflows/ci.yml

@@ -1,42 +0,0 @@
-name: CI
-
-concurrency:
-  group: rednote-tool-studio-production
-  cancel-in-progress: false
-
-on:
-  push:
-    branches: [main]
-  pull_request:
-
-jobs:
-  verify:
-    runs-on: ubuntu-latest
-    container: node:24-bookworm-slim
-    timeout-minutes: 15
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Install dependencies
-        run: npm ci
-      - name: Type check
-        run: npm run typecheck
-      - name: Unit tests
-        run: npm test
-      - name: Production build
-        run: npm run build
-      - name: Stop the retired persistent container
-        if: gitea.event_name == 'push' && gitea.ref == 'refs/heads/main'
-        run: |
-          node --input-type=module <<'JS'
-          import Docker from "dockerode";
-          const docker = new Docker({ socketPath: "/var/run/docker.sock" });
-          for (const name of ["rednote-tool-studio", "rednote-tool-studio-candidate", "rednote-tool-studio-previous"]) {
-            try {
-              await docker.getContainer(name).remove({ force: true });
-            } catch (error) {
-              if (error.statusCode !== 404) throw error;
-            }
-          }
-          console.log("Retired Rednote Tool Studio containers stopped; the data volume was preserved.");
-          JS