feat: complete frontend ui integrity followups

tests/integration/__init__.py

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+"""Sprint integration test package."""

tests/integration/test_sprint4_integration_suite.py

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+from __future__ import annotations
+
+import importlib.util
+import sys
+from pathlib import Path
+
+
+PROJECT_ROOT = Path(__file__).resolve().parents[2]
+REGRESSION_SCRIPT = PROJECT_ROOT / "scripts" / "sprint4_real_backend_regression.py"
+
+
+def _load_regression_module():
+    spec = importlib.util.spec_from_file_location("sprint4_real_backend_regression", REGRESSION_SCRIPT)
+    assert spec is not None and spec.loader is not None
+    module = importlib.util.module_from_spec(spec)
+    sys.modules[spec.name] = module
+    spec.loader.exec_module(module)
+    return module
+
+
+def test_t_b_27_real_backend_suite_covers_five_react_modules() -> None:
+    module = _load_regression_module()
+
+    checks = module.build_checks()
+
+    assert [check.module for check in checks] == ["share", "data-query", "review", "llm", "poster"]
+    assert all("/api/" in check.description for check in checks)
+
+
+def test_t_c_44_poster_cli_docker_delivery_is_wired() -> None:
+    dockerfile = (PROJECT_ROOT / "Dockerfile.poster").read_text(encoding="utf-8")
+    compose = (PROJECT_ROOT / "docker-compose.yml").read_text(encoding="utf-8")
+    workflow = (PROJECT_ROOT / ".github" / "workflows" / "ci.yml").read_text(encoding="utf-8")
+
+    assert 'ENTRYPOINT ["python", "/app/scripts/gaokao-poster"]' in dockerfile
+    assert "gaokao-poster:" in compose
+    assert "dockerfile: Dockerfile.poster" in compose
+    assert "docker build -f Dockerfile.poster -t gaokao-poster-cli:test ." in workflow
+
+
+def test_frontend_contract_gate_includes_sprint4_poster_status_path() -> None:
+    codegen_check = (PROJECT_ROOT / "apps" / "web" / "scripts" / "codegen-check.ts").read_text(encoding="utf-8")
+    generated_types = (PROJECT_ROOT / "apps" / "web" / "src" / "types" / "api-generated.d.ts").read_text(
+        encoding="utf-8",
+    )
+
+    assert "/api/poster/{job_id}/status" in generated_types
+    assert "/api/share-link/{code}/stats" in codegen_check
+    assert "/api/poster/generate" in codegen_check

tests/test_poster_cli_docker_contract.py

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+from __future__ import annotations
+
+from pathlib import Path
+
+
+PROJECT_ROOT = Path(__file__).resolve().parents[1]
+
+
+def test_poster_cli_dockerfile_targets_dedicated_cli_entrypoint() -> None:
+    dockerfile = (PROJECT_ROOT / "Dockerfile.poster").read_text(encoding="utf-8")
+
+    assert "FROM python:3.12-slim" in dockerfile
+    assert "fonts-noto-cjk" in dockerfile
+    assert "requirements-admin.txt" in dockerfile
+    assert "COPY data /app/data" in dockerfile
+    assert "COPY scripts/gaokao-poster /app/scripts/gaokao-poster" in dockerfile
+    assert 'ENTRYPOINT ["python", "/app/scripts/gaokao-poster"]' in dockerfile
+    assert 'CMD ["--help"]' in dockerfile
+
+
+def test_compose_declares_poster_cli_service_profile() -> None:
+    compose = (PROJECT_ROOT / "docker-compose.yml").read_text(encoding="utf-8")
+
+    assert "gaokao-poster:" in compose
+    assert "dockerfile: Dockerfile.poster" in compose
+    assert "localhost/gaokao-volunteer-system-poster:latest" in compose
+    assert 'profiles: ["poster"]' in compose
+    assert "./reports:/work/reports" in compose
+
+
+def test_ci_builds_poster_cli_docker_image() -> None:
+    workflow = (PROJECT_ROOT / ".github" / "workflows" / "ci.yml").read_text(encoding="utf-8")
+
+    assert "Validate Poster CLI Docker contract" in workflow
+    assert "tests/test_poster_cli_docker_contract.py" in workflow
+    assert "Build Poster CLI Docker image" in workflow
+    assert "docker build -f Dockerfile.poster -t gaokao-poster-cli:test ." in workflow