Restore native Runtime package CI portability

.github/workflows/native-runtime-packages.yml

@@ -35,6 +35,7 @@ on:
     - 'scripts/tests/test_prepare_dotnet_install.py'
     - 'scripts/tests/test_prepare_runner_disk.py'
     - 'scripts/tests/test_verify_cross_rid_compatibility.py'
+    - 'scripts/tests/test_v8_bootstrap_literals.py'
     - 'scripts/tests/test_v8_windows_environment.ps1'
     - 'scripts/verify-release-packages.py'
     - 'src/WebScene.Backend.Abstractions/**'
@@ -76,7 +77,8 @@ jobs:
           scripts/tests/test_native_runtime_workflow_policy.py \
           scripts/tests/test_prepare_dotnet_install.py \
           scripts/tests/test_prepare_runner_disk.py \
-          scripts/tests/test_verify_cross_rid_compatibility.py
+          scripts/tests/test_verify_cross_rid_compatibility.py \
+          scripts/tests/test_v8_bootstrap_literals.py
     - name: Repair incomplete .NET install
       shell: bash
       env:

docs/validation/runtime-ci-bootstrap-819.md

@@ -0,0 +1,35 @@
+# Native Runtime CI bootstrap repair (#819)
+
+WebScene main at `795551990872aaa4d6af9224648c61af7d4c8276` could not
+produce Windows or Linux Runtime packages. The final raw JavaScript literal in
+`install_editor_web_platform_globals` had grown to 16,539 UTF-8 bytes, beyond
+the 15,000-byte portability ceiling that keeps MSVC below C2026's 16,380-byte
+literal limit. The same main commit's general CI also used a stale Windows Dawn
+export fixture that omitted the required `websceneDawnQueryD3D12DeviceV1`
+bridge.
+
+Wiring the existing portability test into the producer preflight also exposed a
+15,203-byte Service Worker bootstrap literal. It is split through the same
+ordered concatenation path, making the gate cover every currently known
+bootstrap family instead of excluding an existing violation.
+
+The editor bootstrap now splits at a complete statement boundary and continues
+to use the existing ordered `source_parts` concatenation. The snapshot extractor
+and runtime therefore receive the same JavaScript program without increasing
+the compiler-safety limit or changing browser behavior. A focused test checks
+every editor-platform part against the limit and compares the ordered join with
+the extractor output. The native package workflow executes that test before
+starting any RID build.
+
+The Windows symbol fixture now contains the exact D3D12 bridge export already
+required by the production verifier. This changes test evidence only; it does
+not broaden the accepted export surface.
+
+Authoritative failure evidence:
+
+- WebScene CI run `35505459474`, Linux graphics boundary job.
+- WebScene NuGet run `35505459479`, Windows and Linux Runtime package jobs.
+
+The AppScene SDK producer must use the WebScene merge commit containing this
+repair. The cancelled producer run `35507539063` still points at the broken
+WebScene revision and cannot be used as release evidence.

eng/graphics/tests/test_dawn_exports.py

@@ -23,7 +23,9 @@ def test_native_symbol_formats(self):
              "00001040 T websceneDawnQueryVulkanDeviceV3\n"
              "00001050 T websceneDawnAcquireVulkanQueueV3\n"
              "00001060 T websceneDawnReleaseVulkanQueueV3\n"),
-            ("win-x64", "  1  0 00001000 wgpuCreateInstance\n  2  1 00001010 wgpuGetProcAddress\n")]:
+            ("win-x64", "  1  0 00001000 wgpuCreateInstance\n"
+             "  2  1 00001010 wgpuGetProcAddress\n"
+             "  3  2 00001020 websceneDawnQueryD3D12DeviceV1\n")]:
             with self.subTest(rid=rid):
                 self.assertEqual(self.inspect(text, rid)["status"], "passed")
 

experiments/WebScene.NativeEngine.Probe/native/webscene_v8_runtime.cpp

@@ -3980,7 +3980,8 @@ struct v8_dom_runtime::implementation final {
                 }
                 walkElements(root, upgradeElement);
               }, writable: true, configurable: true }
-            });
+            });)JS",
+            R"JS(
 
             Object.defineProperty(document, 'createElement', {
               value(...args) {

experiments/WebScene.NativeEngine.Probe/native/webscene_v8_runtime_service_workers.inc

@@ -1118,7 +1118,8 @@
                           }
                         }
                         const caches = Object.create(CacheStorage.prototype);
-                        cacheStorageState.set(caches, {wrappers:new Map()});
+                        cacheStorageState.set(caches, {wrappers:new Map()});)JS",
+                        R"JS(
                         function Client() { throw new TypeError('Illegal constructor'); }
                         function WindowClient() { throw new TypeError('Illegal constructor'); }
                         function Clients() { throw new TypeError('Illegal constructor'); }

scripts/tests/test_v8_bootstrap_literals.py

@@ -37,6 +37,23 @@
 
 
 class V8BootstrapLiteralTests(unittest.TestCase):
+    def test_editor_platform_bootstrap_is_portable_and_byte_equivalent(self) -> None:
+        source = RUNTIME_PATH.read_text(encoding="utf-8")
+        marker = "void install_editor_web_platform_globals"
+        parts = EXTRACTOR.extract_parts(source, marker)
+
+        self.assertGreater(len(parts), 6)
+        self.assertTrue(
+            all(
+                len(part.encode("utf-8")) <= EXTRACTOR.MAX_RAW_LITERAL_BYTES
+                for part in parts
+            )
+        )
+        self.assertEqual(
+            "".join(parts).strip() + "\n",
+            EXTRACTOR.extract(source, marker),
+        )
+
     def test_fetch_bootstrap_is_portable_and_byte_equivalent(self) -> None:
         source = RUNTIME_PATH.read_text(encoding="utf-8")
         parts = EXTRACTOR.extract_parts(source, "void install_fetch_globals")