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

Integrate the Commander argument adapter and dsh-front-door work with master's
config-tree `dsh web` (#601: AppCLIEntry + apps/cli/cordis.yml) and the
packages/ui/acp → packages/acp/acp relocation.

- web.ts: keep master's AppCLIEntry-based boot, but take the adapter's parsed
  (host, port, dev) instead of an internal parseArgs. The adapter's host/port
  defaults (127.0.0.1/3080) match cordis.yml, so always passing them is
  behavior-equivalent to master's "undefined keeps the yml default".
- apps/cli/package.json: master's expanded config-tree dep set + commander.
- retire-readline Agent Note: point the TUI refusal proof at
  apps/cli/tests/built-bin.e2e.ts (both languages), re-record the pair.
- READMEs reconciled (demo-bin removal + master's ACP/channel rewording).

package.json

@@ -89,6 +89,7 @@
     "constraints": "tsx scripts/check-workspace-constraints.ts",
     "doc-sync": "tsx scripts/run-gates.ts doc-sync",
     "hygiene": "pnpm run knip && pnpm run publint && pnpm run constraints && pnpm run verify-package-invariants && pnpm run verify-built-package-invariants && pnpm run verify-cordis-config && pnpm run verify-node-next-types && pnpm run verify-runtime-closure",
+    "dsh": "node --import tsx apps/cli/src/bin.ts",
     "demo:headless": "node --import tsx packages/examples/cli-demo/src/bin.ts --config examples/headless-agent/cordis.yml",
     "demo:tui": "node --import tsx apps/cli/src/bin.ts",
     "demo:code-mode": "node scripts/demo-code-mode.mjs",