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.

packages/ui/app-boot/tests/app-boot.spec.ts

@@ -171,6 +171,19 @@ describe('boot', () => {
     }
   })
 
+  it('runs host preparation before the Loader tree mounts', async () => {
+    const dir = tmp()
+    writeFileSync(join(dir, 'noop.mjs'), 'export const name = "noop"\nexport function apply() {}\n')
+    writeFileSync(join(dir, 'cordis.yml'), '- id: noop\n  name: ./noop.mjs\n')
+    const prepared: Context[] = []
+    const ctx = await boot(NAME, join(dir, 'cordis.yml'), undefined, (hostCtx) => { prepared.push(hostCtx) })
+    try {
+      expect(prepared).toEqual([ctx])
+    } finally {
+      await ctx.fiber.dispose()
+    }
+  })
+
   it('rejects (never exits 0 half-empty) when a config names a plugin that cannot be imported', async () => {
     const dir = tmp()
     writeFileSync(join(dir, 'cordis.yml'), '- id: ghost\n  name: ./missing.mjs\n')