update ci and remove pipeline check

Author: gavinjqu

.github/workflows/ci.yml

@@ -1,29 +1,53 @@
-name: pipeline
+name: smoke
 
 on:
   push:
   pull_request:
 
+# Cancel superseded runs on the same ref.
+concurrency:
+  group: smoke-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
-  run-pipeline:
+  smoke:
+    name: smoke (Python ${{ matrix.python-version }})
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.11", "3.12"]
+
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v3
         with:
-          python-version: "3.11"
+          enable-cache: true
+
+      - name: Set up Python ${{ matrix.python-version }}
+        run: uv python install ${{ matrix.python-version }}
+
       - name: Install dependencies
+        run: uv sync --python ${{ matrix.python-version }}
+
+      - name: Import smoke check
+        # Catches syntax errors, broken imports, and dependency drift —
+        # the things that *can* break in the absence of UKHLS data.
         run: |
-          python -m pip install --upgrade pip
-          pip install .
-      - name: Run pipeline
-        run: |
-          FAST=1 python -m src.cli --config configs/config.yaml --fast
+          uv run python -c "
+          from src import cli
+          from src.pipeline import ingest, ingest_ukhls, cluster, estimate, report
+          from src.analysis import figures, tables
+          from src.analysis._style import apply_paper_style, PALETTE, TYPE_STYLES
+          print('imports ok')
+          "
+
       - name: Run tests
-        run: |
-          pytest -q
-      - name: Upload outputs
-        uses: actions/upload-artifact@v4
-        with:
-          name: pipeline-output
-          path: output/
+        # `tests/test_pipeline.py` skips automatically when the UKHLS frailty
+        # parquet is absent (which it always is in CI — the data is restricted
+        # and gitignored). What this step does verify: that pytest collection
+        # succeeds, that the test code itself parses, and that no other tests
+        # have regressed.
+        run: uv run pytest -q