feat: auto-suspend tasks on quota errors, add Claude progress tracking

- Auto-suspend tasks after 3 consecutive quota/auth errors with
  retry-after date parsing and Discord notification
- Add tool_progress and tool_use_summary streaming from Claude Agent SDK
- Prefix progress messages with invisible marker so bots ignore them
- Fix misleading provider label in codex service logs

src/message-turn-controller.ts

@@ -2,6 +2,7 @@ import { type AgentOutput } from './agent-runner.js';
 import { logger } from './logger.js';
 import { formatOutbound } from './router.js';
 import { shouldResetSessionOnAgentFailure } from './session-recovery.js';
+import { TASK_STATUS_MESSAGE_PREFIX } from './task-watch-status.js';
 import { type Channel, type RegisteredGroup } from './types.js';
 
 export type VisiblePhase = 'silent' | 'progress' | 'final';
@@ -211,7 +212,7 @@ export class MessageTurnController {
     if (minutes > 0) elapsedParts.push(`${minutes}분`);
     elapsedParts.push(`${seconds}초`);
 
-    return `${text}\n\n${elapsedParts.join(' ')}`;
+    return `${TASK_STATUS_MESSAGE_PREFIX}${text}\n\n${elapsedParts.join(' ')}`;
   }
 
   private clearProgressTicker(): void {