test: add metering E2E integration tests + Ollama CI tier

.github/workflows/run-tests.yaml

@@ -337,3 +337,84 @@ jobs:
       - name: Test ${{ matrix.package }}
         run: cd ./${{ matrix.package }} && pnpm test
         env: ${{ matrix.env }}
+
+  # =========================================================================
+  # TIER 4 – Ollama tests (PostgreSQL + Ollama)
+  # =========================================================================
+  ollama-tests:
+    needs: build
+    runs-on: blacksmith-4vcpu-ubuntu-2404
+    timeout-minutes: 15
+
+    env:
+      PGHOST: localhost
+      PGPORT: 5432
+      PGUSER: postgres
+      PGPASSWORD: password
+      OLLAMA_BASE_URL: http://localhost:11434
+
+    services:
+      pg_db:
+        image: ghcr.io/constructive-io/docker/postgres-plus:18
+        env:
+          POSTGRES_USER: postgres
+          POSTGRES_PASSWORD: password
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 5432:5432
+
+      ollama:
+        image: ollama/ollama:latest
+        ports:
+          - 11434:11434
+        options: >-
+          --health-cmd "bash -c 'cat < /dev/null > /dev/tcp/localhost/11434'"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 10
+          --health-start-period 10s
+
+    steps:
+      - name: Download workspace
+        uses: actions/download-artifact@v4
+        with:
+          name: workspace-build
+
+      - name: Extract workspace
+        run: tar -xzf workspace.tar.gz && rm workspace.tar.gz
+
+      - name: Configure Git (for tests)
+        run: |
+          git config --global user.name "CI Test User"
+          git config --global user.email "ci@example.com"
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v2
+        with:
+          version: 10
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Seed app_user
+        run: |
+          pnpm --filter pgpm exec node dist/index.js admin-users bootstrap --yes
+          pnpm --filter pgpm exec node dist/index.js admin-users add --test --yes
+
+      - name: Pull Ollama models
+        run: |
+          curl -s http://localhost:11434/api/pull -d '{"name":"nomic-embed-text:latest"}' | tail -1
+          echo "nomic-embed-text pulled"
+
+      - name: Test graphile-llm metering
+        run: cd ./graphile/graphile-llm && npx jest metering-e2e --verbose