ci: share package builds with unit shards

.github/workflows/ci.yml

@@ -28,8 +28,17 @@ jobs:
       - name: Lint, typecheck, architecture, package, and tooling checks
         run: bun run check
 
+      - name: Upload package builds
+        uses: actions/upload-artifact@v4
+        with:
+          name: package-builds
+          path: packages/*/dist
+          if-no-files-found: error
+          retention-days: 1
+
   unit-tests:
     runs-on: ubuntu-latest
+    needs: quality
     strategy:
       fail-fast: true
       matrix:
@@ -42,6 +51,12 @@ jobs:
         with:
           lfs: 'true'
 
+      - name: Download package builds
+        uses: actions/download-artifact@v4
+        with:
+          name: package-builds
+          path: .
+
       - name: Run quick unit test shard
         shell: bash
         run: |

.github/workflows/heavy-tests.yml

@@ -20,6 +20,9 @@ jobs:
         with:
           lfs: 'true'
 
+      - name: Build packages
+        run: bun run build:packages
+
       - name: Heavy fixture unit tests
         shell: bash
         run: |