merge: integrate remote token rotation + memory pipeline

Merge remote main (token rotation, usage API, dashboard fixes)
with local memory pipeline changes. Smart quote encoding fixed.
Test alignment pending.

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

src/agent-runner.ts

@@ -43,6 +43,9 @@ export interface AgentOutput {
   status: 'success' | 'error';
   result: string | null;
   phase?: 'progress' | 'final' | 'tool-activity' | 'intermediate';
+  agentId?: string;
+  agentLabel?: string;
+  agentDone?: boolean;
   newSessionId?: string;
   error?: string;
 }