Merge branch 'master' into worktree/dsh-arg-parser

Integrate the Commander argument adapter with master's safe session-resume
feature and dsh web --dev flag.

- args.ts: add --dev to the web parser.
- tui.ts: keep master's process.execve in-place resume handoff, but take the
  adapter's parsed (config, resume); inject the resume id through boot's
  prepare(ctx) hook via ctx.provide(RESUME_SESSION_ID_KEY, id) instead of the
  RESUME_SESSION_ID env var; rebuild the re-exec argv as `dsh --resume <id>`.
- app-boot: drop master's replaceResumeArg (no longer needed) alongside the
  already-removed parseResumeArg; add RESUME_SESSION_ID_KEY.
- the four tui-agent/cordis configs read the ctx-provided resumeSessionId via a
  typeof-guarded !!js expression, so resume needs no env var.
- web.ts: keep master's client roster and --dev watch, take parsed host/port/dev.

vitest.config.ts

@@ -11,6 +11,7 @@ const windowsUnsupportedPackages = process.platform === 'win32'
   ? [
       'packages/bash/*',
       'packages/hooks/*',
+      'packages/pty/pty-local',
       'packages/sandbox/sandbox-local',
       'packages/sdk/create-sdk',
       'packages/sdk/helper',
@@ -60,7 +61,10 @@ export default defineConfig({
         plugins: [pathsPlugin()],
         test: {
           name: 'thread-safe',
-          pool: 'threads',
+          // Node 24 has aborted in its CJS lexer from a macOS arm64 worker
+          // thread. A fork contains that external runtime failure to the test
+          // process; other hosts retain the lower-overhead thread pool.
+          pool: process.platform === 'darwin' ? 'forks' : 'threads',
           setupFiles: ['./scripts/test-invariants.ts'],
           include: testIncludes,
           exclude: [
@@ -97,6 +101,7 @@ export default defineConfig({
         // branches need a browser-grade harness the jsdom lane doesn't cover
         // yet. TODO(gui): cover and remove as the client test lane matures.
         'packages/client/ui-trajectory/src/*',
+        'packages/client/ui-question/src/client/QuestionComposer.tsx',
         'packages/client/web-react/src/*',
         'packages/client/runtime/src/*',
         'packages/client/ui-conversation/src/*',
@@ -104,6 +109,8 @@ export default defineConfig({
         'packages/client/ui-layout/src/*',
         'packages/client/web/src/*',
         'packages/host/webserver/src/*',
+        'packages/client/modules/src/loader.ts',
+        'packages/client/hmr/src/client/index.ts',
         ...windowsUnsupportedPackages.map(path => `${path}/src/**/*.ts`),
         ...windowsCoverageExclusions,
       ],