docs: regenerate catalogs and re-pair bilingual READMEs

Regenerate the cordis/config/persistence catalogs and the module graph for
the ui-plan package and the plan projection unit; add the ui-plan Chinese
README and the Model Experience indirect sentence (allowlisted: the control
dispatches /plan lines, dsh-plan-mode owns the model surface); carry the
QuestionComposer Markdown/scroll improvements into the Chinese ui-question
README; re-record the three touched translation pairs.

scripts/verify-package-readme-model-experience.ts

@@ -58,6 +58,7 @@ const SENTENCE_MODEL_EXPERIENCE: Readonly<Record<string, SentenceContract>> = {
   'packages/client/ui-slash': { kind: 'none', reason: 'Browser-side UI plugin layer; registers no model surface.' },
   'packages/client/ui-command': { kind: 'indirect', reason: 'The dispatch paths trigger the host command.execute RPC; each command handler\'s host package owns any model-visible effect.' },
   'packages/client/ui-model': { kind: 'indirect', reason: 'Selection routes session.selectModel; the host snapshots the target at the next prompt-assembly boundary and owns the model-visible effect.' },
+  'packages/client/ui-plan': { kind: 'indirect', reason: 'The control dispatches /plan command lines; dsh-plan-mode owns the model-visible policy, exit tool, and logged state.' },
   'packages/client/ui-question': { kind: 'indirect', reason: 'The package mounts dsh-tool-ask-user; that tool owns the model-visible schema and answer rendering.' },
   'packages/client/ui-trajectory': { kind: 'none', reason: 'Browser-side UI plugin layer; registers no model surface.' },
   'packages/client/ui-workspace': { kind: 'none', reason: 'Browser-side UI plugin layer; registers no model surface.' },