feat(intelligence): add self-evolution UI for identity change proposals

P1.1: Identity Change Proposal UI
- Create IdentityChangeProposal.tsx with diff view for SOUL.md changes
- Add approve/reject buttons with visual feedback
- Show evolution history timeline with restore capability

P1.2: Connect Reflection Engine to Identity Proposals
- Update ReflectionLog.tsx to convert reflection proposals to identity proposals
- Add ReflectionIdentityProposal type for non-persisted proposals
- Auto-create identity proposals when reflection detects personality changes

P1.3: Evolution History and Rollback
- Display identity snapshots with timestamps
- One-click restore to previous personality versions
- Visual diff between current and proposed content

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

desktop/src/components/ReflectionLog.tsx

@@ -413,9 +413,34 @@ export function ReflectionLog({
       const result = await intelligenceClient.reflection.reflect(agentId, []);
       setHistory((prev) => [result, ...prev]);
 
-      // Update pending proposals
-      if (result.identity_proposals.length > 0) {
-        setPendingProposals((prev) => [...prev, ...result.identity_proposals]);
+      // Convert reflection identity_proposals to actual identity proposals
+      // The reflection result contains proposals that need to be persisted
+      if (result.identity_proposals && result.identity_proposals.length > 0) {
+        for (const proposal of result.identity_proposals) {
+          try {
+            // Determine which file to modify based on the field
+            const file: 'soul' | 'instructions' =
+              proposal.field === 'soul' || proposal.field === 'instructions'
+                ? (proposal.field as 'soul' | 'instructions')
+                : proposal.field.toLowerCase().includes('soul')
+                ? 'soul'
+                : 'instructions';
+
+            // Persist the proposal to the identity system
+            await intelligenceClient.identity.proposeChange(
+              agentId,
+              file,
+              proposal.proposed_value,
+              proposal.reason
+            );
+          } catch (err) {
+            console.warn('[ReflectionLog] Failed to create identity proposal:', err);
+          }
+        }
+
+        // Refresh pending proposals from the identity system
+        const proposals = await intelligenceClient.identity.getPendingProposals(agentId);
+        setPendingProposals(proposals);
       }
     } catch (error) {
       console.error('[ReflectionLog] Reflection failed:', error);