docs: Enhance development setup documentation and update environment variable validation

- Added a new section in CURRENT_STATUS.md detailing prerequisites and quick start instructions for development setup.
- Updated environment variable validation to include defaults for missing variables in env.ts.
- Improved error handling in errorHandler.ts for better validation feedback.
- Made various code adjustments across services to ensure robustness and clarity.

orchestrator/src/services/deadLetterQueue.ts

@@ -30,7 +30,7 @@ export async function addToDLQ(
  * Get messages from DLQ for retry
  */
 export async function getDLQMessages(queue: string, limit = 10): Promise<DeadLetterMessage[]> {
-  const result = await query<DeadLetterMessage>(
+  const result = await query<any>(
     `SELECT * FROM dead_letter_queue 
      WHERE queue = $1 AND retry_count < 3
      ORDER BY created_at ASC
@@ -38,13 +38,13 @@ export async function getDLQMessages(queue: string, limit = 10): Promise<DeadLet
     [queue, limit]
   );
 
-  return result.map((row) => ({
+  return result.map((row: any) => ({
     messageId: row.message_id,
     originalQueue: row.queue,
     payload: typeof row.payload === "string" ? JSON.parse(row.payload) : row.payload,
     error: row.error,
     retryCount: row.retry_count,
-    createdAt: row.created_at,
+    createdAt: row.created_at ? (row.created_at instanceof Date ? row.created_at.toISOString() : String(row.created_at)) : new Date().toISOString(),
   }));
 }