feat(feedback): add optional startup campaigns

[ImPedro29]

Summary

• add the authenticated feedback campaign client and validate the API contract
• show at most one optional inline survey during an eligible interactive CLI startup
• dismiss the survey as soon as normal work begins, without changing or delaying the prompt
• persist bounded local receipts and a durable retry outbox containing identifiers and option IDs only
• respect TTY, CLI entrypoint, remote mode, CI, telemetry, and organization policy gates
• remove inherited automatic mid-session surveys from the REPL

Impact

• user-facing impact: eligible users may see one optional PT/EN survey at startup; typing normally, submitting work, or choosing 0 dismisses it
• developer/maintainer impact: PromptInput now exposes an optional pre-submit interceptor for inline startup UI

Testing

• bun run build
• bun run smoke
• bun test src/components/VerbooFeedback/useVerbooStartupFeedback.test.ts
• bun run verify:privacy
• bun run security:pr-scan -- --base origin/main
• bun run test:isolated — all 315 files ran; two unrelated secure-storage lock tests failed under the parallel runner and passed immediately when rerun individually

Notes

• provider/model path tested: active model identity is included in the validated startup request
• screenshots attached: not included; this is inline terminal UI
• dependency: requires the feedback API and migration being prepared in the backend repository
• no release, package publication, or deployment was triggered