fix(workspaces): preserve resumed sessions and support text answers

[luokerenx4]

Opening an existing ACP conversation could silently allocate and bind a new native session when the runtime did not support history loading. Reject that restore with terminal guidance and preserve the original identity; fresh sessions still work.

Codex questions without options previously offered only an empty answer. Carry free text through the request card, domain hook, HTTP route and transport. Keep permission requests option-only, mask secret questions, retain drafts on errors, and clear an entire question sequence when its turn stops. Request IDs reset the card between questions.

The shared card retains its composer status placement and uses a labeled textarea plus explicit submission, without taking focus. Demo Codex conversations accept “Ask me for a project name” to exercise this interaction. Owner documentation records the contract and interaction choice.

Validation:

• Full pnpm test: 737 files, 6649 passed, 3 skipped.
• Targeted host, route, view and demo tests: 115 passed; additional request-card tests: 2 passed.
• Root npx tsc --noEmit and UI npx tsc -b passed.
• Real browser demo: Codex question → text answer → continued conversation; second question → Stop → card cleared. Visually inspected the rendered card.
• Restarted the independent UI Setup project on this checkout and verified the real /chat page at localhost:5173.
• PR feat(workspaces): generalize WebPi into a multi-runtime Web conversation surface #1390 post-merge CLI Installer Smoke passed before this follow-up.

This fixes the two reviewed defects after #1390. Credentialed tool turns and Web/TUI transcript continuity across all seven runtimes remain the acceptance gap already recorded in plans/web-conversation-surface.md; this PR does not claim that broader acceptance. No Electron-specific files or managed runtime launch contract changed.

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Project	Deployment	Actions	Updated
openalice-demo	Building	Preview	Sep 6, 2026 1:16pm UTC