feat(ocap-kernel): Attenuate VatSupervisor endowed console

Author: grypez

packages/ocap-kernel/src/VatSupervisor.ts

@@ -239,8 +239,16 @@ export class VatSupervisor {
       meterControl: makeDummyMeterControl(),
     });
 
+    const consoleLogger = this.#logger.subLogger({ tags: ['console'] });
     const workerEndowments = {
-      console: this.#logger.subLogger({ tags: ['console'] }),
+      // Attenuate the logger to minimal console functionality
+      console: harden({
+        log: consoleLogger.log,
+        error: consoleLogger.error,
+        warn: consoleLogger.warn,
+        info: consoleLogger.info,
+        debug: consoleLogger.debug,
+      }),
       assert: globalThis.assert,
     };
 

vitest.config.ts

@@ -128,7 +128,7 @@ export default defineConfig({
           lines: 73.58,
         },
         'packages/ocap-kernel/**': {
-          statements: 90.46,
+          statements: 90.47,
           functions: 92.21,
           branches: 79.89,
           lines: 90.44,