Migrate CLI E2E tests to Node.js 26

Run the CLI subprocess suites and benchmark tools as native TypeScript with
node:test, and move them under test/e2e-cli.

Update CI and Compose runners, run local smoke tests on Linux, macOS, and
Windows, and collect source-mapped CLI coverage with c8.

src/apps/cli/tsconfig.json

@@ -27,5 +27,5 @@
         }
     },
     "include": ["*.ts", "**/*.ts", "**/*.tsx"],
-    "exclude": ["node_modules", "dist", "test", "testdeno"]
+    "exclude": ["node_modules", "dist", "test"]
 }