docs: reorganize docs — archive outdated, create brainstorming folder

- Create docs/brainstorming/ with 5 discussion records (Mar 16 - Apr 7)
- Archive ~30 outdated audit reports (V5-V11) to docs/archive/old-audits/
- Archive superseded analysis docs to docs/archive/old-analysis/
- Archive completed session plans to docs/archive/old-plans/
- Archive old test reports/validations to respective archive folders
- Remove empty directories left after moves
- Keep current docs: TRUTH.md, feature docs, deployment, knowledge-base, superpowers

desktop/src/components/ButlerPanel/ProposalsSection.tsx

@@ -34,8 +34,9 @@ export function ProposalsSection({ proposals, onStatusChange }: ProposalsSection
     try {
       await updateButlerProposalStatus(proposalId, status);
       onStatusChange?.();
-    } catch (err) {
-      // Error handled silently - UI will not update
+    } catch {
+      // Status update failed — clear local optimistic state on next refresh
+      onStatusChange?.();
     } finally {
       setUpdating(null);
     }