test: full integration coverage on all desktop platforms

.github/workflows/build-all-platforms.yml

@@ -570,6 +570,14 @@ jobs:
           cd ${{ env.EXAMPLE_DIR }}
           flutter build windows --release
 
+      - name: Run Windows integration tests
+        shell: bash
+        run: |
+          cd ${{ env.EXAMPLE_DIR }}
+          for suite in smoke_test simple_test runtime_driver_test fjs_service_test; do
+            flutter test "integration_test/$suite.dart" -d windows
+          done
+
       - name: Run Windows cockpit verification
         run: |
           cd ${{ env.EXAMPLE_DIR }}
@@ -662,10 +670,12 @@ jobs:
           cd ${{ env.EXAMPLE_DIR }}
           flutter build linux --release
 
-      - name: Run Linux smoke test
+      - name: Run Linux integration tests
         run: |
           cd ${{ env.EXAMPLE_DIR }}
-          xvfb-run -a flutter test integration_test/smoke_test.dart -d linux
+          for suite in smoke_test simple_test runtime_driver_test fjs_service_test; do
+            xvfb-run -a flutter test "integration_test/$suite.dart" -d linux
+          done
 
       - name: Run Linux cockpit verification
         run: |
@@ -732,6 +742,13 @@ jobs:
           cd ${{ env.EXAMPLE_DIR }}
           flutter build macos --release
 
+      - name: Run macOS integration tests
+        run: |
+          cd ${{ env.EXAMPLE_DIR }}
+          for suite in smoke_test simple_test runtime_driver_test fjs_service_test; do
+            flutter test "integration_test/$suite.dart" -d macos
+          done
+
       - name: Run macOS cockpit verification
         run: |
           cd ${{ env.EXAMPLE_DIR }}

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## Unreleased
+
+* **FIX**: The example's `FjsService.dispose()` now drains already-scheduled JavaScript work via `closeGracefully()` before teardown, so pending evaluations settle normally instead of surfacing as late cancelled errors after callers move on.
+* **INTERNAL**: Integration tests now run on every desktop platform in CI: all four example suites (`smoke`, `simple`, `runtime_driver`, `fjs_service`) execute sequentially on Linux, macOS, and Windows instead of the previous Linux-only smoke test.
+* **INTERNAL**: Added a full unit-test suite for the `fetch-precompiled-artifacts` publish-path command (signature verification, multi-asset fetch, composite-name validation, missing generation, wrong signing key) and a Rust regression test locking the async engine's memory-limit error contract.
+
 ## 3.3.2
 
 * **BREAKING**: Raised the supported toolchain floor to Flutter 3.35.5 / Dart 3.9.2 (from 3.24.0 / 3.5.0), following `flutter_rust_bridge` 2.13.0 which requires Dart SDK >=3.9.2. Consumers on older Flutter must stay on fjs 3.3.1 (FRB 2.12) or upgrade Flutter.