feat: execute route and release recovery contracts

tests/runtime-schema/release-manifest.test.js

@@ -25,6 +25,7 @@ const manifest = {
   assetManifestHash: "hash-a",
   releaseId: "release-a",
   builtAt: "2026-07-25T00:00:00Z",
+  routeChunks: { "route-home": "assets/home.js" },
 };
 
 describe("release manifest boot boundary", () => {
@@ -46,6 +47,62 @@ describe("release manifest boot boundary", () => {
             new Response(JSON.stringify({ ...manifest, buildId: "build-b" })),
         },
       ),
+    ).rejects.toMatchObject({
+      kind: "BUILD_MISMATCH",
+      code: "MANIFEST_BUILD_MISMATCH",
+    });
+  });
+
+  it.each([
+    [
+      { configSchemaVersion: "2" },
+      {},
+      "CONFIG_MISMATCH",
+      "MANIFEST_CONFIG_SCHEMA_MISMATCH",
+    ],
+    [
+      { apiContractVersion: "2" },
+      {},
+      "API_CONTRACT_MISMATCH",
+      "MANIFEST_API_CONTRACT_MISMATCH",
+    ],
+    [
+      { releaseId: "release-b" },
+      {},
+      "RELEASE_MISMATCH",
+      "MANIFEST_RELEASE_MISMATCH",
+    ],
+    [
+      {},
+      { expectedAssetManifestHash: "different" },
+      "ASSET_MISMATCH",
+      "MANIFEST_ASSET_MISMATCH",
+    ],
+  ])(
+    "classifies tuple mismatch %# without a generic deploy error",
+    async (manifestOverride, options, kind, code) => {
+      await expect(
+        loadReleaseManifest(
+          /** @type {Parameters<typeof loadReleaseManifest>[0]} */ (runtime),
+          {
+            fetcher: async () =>
+              Response.json({ ...manifest, ...manifestOverride }),
+            ...options,
+          },
+        ),
+      ).rejects.toMatchObject({ kind, code });
+    },
+  );
+
+  it("rejects a manifest without a complete route chunk map", async () => {
+    const malformed = Object.fromEntries(
+      Object.entries(manifest).filter(([key]) => key !== "routeChunks"),
+    );
+    await expect(
+      loadReleaseManifest(
+        /** @type {Parameters<typeof loadReleaseManifest>[0]} */ (runtime),
+        { fetcher: async () => Response.json(malformed) },
+      ),
     ).rejects.toBeInstanceOf(ReleaseManifestError);
   });
 });