Phase 3 sub-commit 4: bridge-integration test (HTTP/SSE round-trip + crash-recover)

examples/todo/tests/integration.sh boots FrankenPHP against the example
app on an isolated port (8767) and database (tests/var/integration.sqlite),
then asserts:

  - POST /api/todos creates a row, GET returns it.
  - SSE stream on app://model/todo carries the §4 envelope with op,
    correlationKey echoed from Idempotency-Key, and the JSON payload.
  - The backend log shows ≥2 "Update published" lines per change
    (collection topic + entity topic — dual publish per ModelPublisher).
  - Killing FrankenPHP makes /healthz unreachable; restarting it
    restores GET access without losing data.

Wired into make quality alongside the existing PHPStan / cs-fixer /
PHPUnit / qmllint checks. The script is self-contained — runs against
the example without disturbing a developer's `make dev` instance.

qmltestrunner integration deferred: out-of-the-box runner can't see
PhpQml.Bridge because the framework module is statically linked into
the host binary. A proper QML test target would need a custom CMake
executable that links the module + uses QtQuickTest's quick_test_main.
Phase 3.x or Phase 5 polish.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

examples/todo/Makefile

@@ -36,7 +36,12 @@ doctor-connect: ## Run bridge:doctor with backend connectivity probe
 clean: ## Remove build artefacts
 	rm -rf $(BUILD_DIR)
 
+.PHONY: integration
+integration: ## Run the bridge-integration test (FrankenPHP boot + HTTP/SSE round-trip + crash-recover)
+	./tests/integration.sh
+
 .PHONY: quality
-quality: build ## Run PHPStan, php-cs-fixer (check), PHPUnit, qmllint
-	cd ../php && composer quality
+quality: build ## Run PHPStan, php-cs-fixer (check), PHPUnit, qmllint, integration
+	cd ../../framework/php && composer quality
 	cmake --build $(BUILD_DIR) --target all_qmllint
+	./tests/integration.sh