feat: add native module realtime transport

templates/module/tests/manifest.test.ts

@@ -51,6 +51,9 @@ async function registerAndCaptureRoutes(): Promise<{
       },
     },
     moduleId: "example",
+    // The template deliberately declares no realtime channel, proving modules opt in rather than
+    // receiving a mandatory feature-specific scaffold.
+    realtime: { channel: () => undefined },
   });
   return { provided, routes };
 }
@@ -138,6 +141,7 @@ describe("module template", () => {
       moduleId: "example",
       params: Object.freeze({}),
       principal: ANONYMOUS_PRINCIPAL,
+      realtime: { publish: () => undefined },
       services,
       // The template declares no logical bucket, so it receives storage that refuses every one —
       // present rather than `undefined`, so module code never branches on whether the host has it.
@@ -182,6 +186,7 @@ describe("module template", () => {
       moduleId: "example",
       params: Object.freeze({}),
       principal: ANONYMOUS_PRINCIPAL,
+      realtime: { publish: () => undefined },
       services: Object.freeze({ database: fakeModuleDatabase(fakeRows) }),
       storage: EMPTY_MODULE_STORAGE,
     });