Remove stale product language

[arach]

Summary

• Rename user-facing stale motion/turn copy to no-recent-signal and no-recent-update language in Home, Conversation, Agents, AgentInfo, and Mesh surfaces.
• Add precise dispatch/remediation names for superseded registrations and non-attachable session references while keeping legacy stale protocol fields accepted for compatibility.
• Align runtime/session/card docs and engineering proposals with the June 4 model: card = durable identity/config, session = runtime context, endpoint = route/binding.

Compatibility notes

• metadata.staleLocalRegistration remains the stored legacy metadata key. Product/runtime copy now renders it as a superseded or historical registration.
• allowStaleDirectId, stale_registration, and stale_reference remain in protocol unions as deprecated compatibility values. New runtime output uses allowHistoricalDirectId, superseded_registration, session_reference_not_attachable, use_current_registration, and session_reference_not_attachable remediation.

Verification

• npm --prefix packages/protocol run check
• npm --prefix packages/runtime run check
• bun run --cwd apps/desktop check
• bun run --cwd packages/web build:client
• bun test packages/web/client/lib/conversations.test.ts
• bun test packages/runtime/src/broker-daemon.test.ts -t "superseded|not attachable|last-seen-expired"
• bun test packages/runtime/src/scout-dispatcher.test.ts
• bun build ./server/index.ts --target=bun --format=esm --outfile /tmp/openscout-web-server-check.mjs from packages/web

bun run --cwd packages/web build:server is still blocked before bundling by the existing terminal relay snapshot check: @openscout/web: terminal relay session snapshot is out of sync with Hudson. I did not run the suggested sync because that would add unrelated generated churn to this PR.

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Project	Deployment	Actions	Updated (UTC)
openscout	Ready	Preview, Comment	Jun 6, 2026 4:59pm