fix: skip hourly terms overlapped by a long walk (WealthLedger/backend#54)

src/modules/investments/tbank-sync/tbank-sync.repository.ts

@@ -183,7 +183,8 @@ export class TbankSyncRepository {
 
   // The timer only proposes work; this reservation is the durable fence. The
   // attempt start (createdAt) is the basis of the next hourly term, including
-  // failed and interrupted attempts.
+  // failed and interrupted attempts. After downtime the next tick is due at
+  // once, so no catch-up queue forms.
   reserveHourly(userId: string, runId: string, hourMs: number) {
     return this.prisma.$transaction(async (tx) => {
       const connection = await tx.tbankConnection.findFirst({
@@ -201,7 +202,16 @@ export class TbankSyncRepository {
       });
       const now = new Date();
       if (previous) {
-        const due = now.valueOf() - previous.createdAt.valueOf() >= hourMs;
+        // Terms are hourMs steps from the attempt start; a walk still running
+        // at a term consumes it. A dead process's attempt has no known end, so
+        // it consumes only its own term.
+        const started = previous.createdAt.valueOf();
+        const ended =
+          previous.state === 'running' ? started : previous.updatedAt.valueOf();
+        const dueAt =
+          started +
+          Math.max(hourMs, Math.ceil((ended - started) / hourMs) * hourMs);
+        const due = now.valueOf() >= dueAt;
         if (previous.state === 'running') {
           if (previous.processRunId === runId) return null;
           // A dead process cannot finish its attempt; close it from its