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.

.dockerignore

@@ -19,7 +19,7 @@ production/
 coverage/
 _testdata/
 test/bench-network/bench-results/
-src/apps/cli/testdeno/bench-results/
+test/e2e-cli/bench-results/
 
 # Local environment / secrets
 .env