Add job status endpoint, persist lastJobId; replace in-process queue with BullMQ-based queue and worker; link job status in UI

app/routes/api/stocks/index.ts

@@ -27,6 +27,7 @@ export async function action({ request }: { request: Request }) {
   const lastDecision = formData.get("lastDecision")?.toString();
   const lastExplanation = formData.get("lastExplanation")?.toString();
   const lastExecutionPlan = formData.get("lastExecutionPlan")?.toString();
+  const lastJobId = formData.get("lastJobId")?.toString();
 
   // Upsert the stock record so ticker is ensured and optional fields are saved
   const stock = await db.stock.upsert({
@@ -35,12 +36,14 @@ export async function action({ request }: { request: Request }) {
       lastDecision: lastDecision ?? undefined,
       lastExplanation: lastExplanation ?? undefined,
       lastExecutionPlan: lastExecutionPlan ?? undefined,
+      lastJobId: lastJobId ?? undefined,
     },
     create: {
       ticker,
       lastDecision: lastDecision ?? undefined,
       lastExplanation: lastExplanation ?? undefined,
       lastExecutionPlan: lastExecutionPlan ?? undefined,
+      lastJobId: lastJobId ?? undefined,
     },
   });