[Feature Request] Add ability to stash and restore conversation threads within a session

Bug Description
Ability to stash some of the session "threads" of thought so I can go back to it a but later but within the same session

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.72
• Feedback ID: 60deb66d-84fa-4045-bdb4-e571de4699cb

Errors

[{"error":"Error: Failed to fetch version from https://storage.googleapis.com/claude-code-dist-86c565f3-f756-42ad-8dfa-d59b1c096819/claude-code-releases/latest: timeout of 30000ms exceeded\n    at IPK (/$bunfs/root/src/entrypoints/cli.js:2610:2073)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-11T14:06:01.128Z"},{"error":"Error: Failed to fetch version from https://storage.googleapis.com/claude-code-dist-86c565f3-f756-42ad-8dfa-d59b1c096819/claude-code-releases/latest: timeout of 30000ms exceeded\n    at IPK (/$bunfs/root/src/entrypoints/cli.js:2610:2073)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-11T14:06:01.129Z"},{"error":"Error: {\"message\":\"Operation timed out.\",\"originalLine\":\"103\",\"originalColumn\":\"152471\",\"line\":\"103\",\"column\":\"152471\",\"sourceURL\":\"/$bunfs/root/src/entrypoints/cli.js\",\"stack\":\"Error: Operation timed out.\\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:103:152471)\",\"name\":\"Error\"}\n    at error (/$bunfs/root/src/entrypoints/cli.js:2558:23759)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:103:81606)\n    at p4R (/$bunfs/root/src/entrypoints/cli.js:103:82150)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:104:16930)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-11T14:07:38.916Z"},{"error":"Error: 1P event logging: 1 events failed to export (code=ECONNABORTED, timeout of 10000ms exceeded)\n    at queueFailedEvents (/$bunfs/root/src/entrypoints/cli.js:6778:2694)\n    at async doExport (/$bunfs/root/src/entrypoints/cli.js:6778:1563)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-11T14:07:39.076Z"},{"error":"Error: {\"message\":\"Failed to export 1 events (code=ECONNABORTED, timeout of 10000ms exceeded)\",\"originalLine\":\"6778\",\"originalColumn\":\"1715\",\"line\":\"6778\",\"column\":\"1715\",\"sourceURL\":\"/$bunfs/root/src/entrypoints/cli.js\",\"stack\":\"Error: Failed to export 1 events (code=ECONNABORTED, timeout of 10000ms exceeded)\\n    at doExport (/$bunfs/root/src/entrypoints/cli.js:6778:1715)\\n    at processTicksAndRejections (native:7:39)\",\"name\":\"Error\"}\n    at error (/$bunfs/root/src/entrypoints/cli.js:2558:23759)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:103:81606)\n    at p4R (/$bunfs/root/src/entrypoints/cli.js:103:82150)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:104:17366)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-11T14:07:39.077Z"},{"error":"Error: Request was aborted.\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:341:3940)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-11T14:28:38.149Z"},{"error":"Error: Request was aborted.\n    at DJT (/$bunfs/root/src/entrypoints/cli.js:1145:67347)\n    at next (native:1:11)\n    at n19 (/$bunfs/root/src/entrypoints/cli.js:6209:3441)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-11T14:28:38.153Z"},{"error":"Error: Compaction canceled.\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:4130:1065)\n    at async D2K (/$bunfs/root/src/entrypoints/cli.js:2634:3705)\n    at async f2K (/$bunfs/root/src/entrypoints/cli.js:2634:1078)\n    at async _6$ (/$bunfs/root/src/entrypoints/cli.js:13357:2536)\n    at async _mT (/$bunfs/root/src/entrypoints/cli.js:13355:3798)\n    at async <anonymous> (/$bunfs/root/src/entrypoints/cli.js:13505:22475)\n    at async V09 (/$bunfs/root/src/entrypoints/cli.js:13505:22404)\n    at async DpT (/$bunfs/root/src/entrypoints/cli.js:13505:19692)\n    at async <anonymous> (/$bunfs/root/src/entrypoints/cli.js:13518:632)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-11T14:28:38.154Z"}]