perf(test): lazy-load bundled channel secrets

extensions/matrix/index.ts

@@ -10,6 +10,10 @@ export default defineBundledChannelEntry({
     specifier: "./channel-plugin-api.js",
     exportName: "matrixPlugin",
   },
+  secrets: {
+    specifier: "./src/secret-contract.js",
+    exportName: "channelSecrets",
+  },
   runtime: {
     specifier: "./runtime-api.js",
     exportName: "setMatrixRuntime",

extensions/matrix/setup-entry.ts

@@ -6,4 +6,8 @@ export default defineBundledChannelSetupEntry({
     specifier: "./channel-plugin-api.js",
     exportName: "matrixPlugin",
   },
+  secrets: {
+    specifier: "./src/secret-contract.js",
+    exportName: "channelSecrets",
+  },
 });

extensions/matrix/src/secret-contract.ts

@@ -167,3 +167,8 @@ export function collectRuntimeConfigAssignments(params: {
     });
   }
 }
+
+export const channelSecrets = {
+  secretTargetRegistryEntries,
+  collectRuntimeConfigAssignments,
+};