Fix Stuck Cowork Session

Resolve the common "RPC error: process with name already running" bug that blocks Cowork sessions. Uses a tiered approach — trying the most elegant fix first, then escalating only if needed.

SOSA Supervised Gate

CRITICAL: Before ANY fix action (archiving, killing processes, clearing cache), present findings to the user and ask for explicit confirmation. Example:

| Session Name | Title | Status | Error | Proposed Action |
|-------------|-------|--------|-------|-----------------|
| busy-wizardly-mccarthy | WhatsApp reminder | idle | RPC error: already running | Archive |

"I found [N] stuck session(s). Should I proceed with the fix?"

Do NOT proceed without explicit user confirmation. This applies to ALL tiers below.