spec: add harden-hourly-sync-lifecycle change (WealthLedger/backend#56)

2026-10-12 20:28:58 +03:00
parent 78f01066d2
commit 14174a7bb3
11 changed files with 828 additions and 0 deletions
@@ -0,0 +1,24 @@
+sequenceDiagram
+  participant Coordinator
+  participant DB as Durable attempt status
+  participant Steps as Child step owners
+  participant TB as T-Bank and public sources
+
+  Coordinator->>Steps: Run required steps
+  Steps->>TB: Start upstream call
+  Coordinator->>Coordinator: Wait for step result within bound
+  alt Step reaches terminal result in time
+    Steps->>DB: Publish complete result
+    Coordinator->>DB: Settle attempt after terminal barrier
+  else Wait bound expires
+    Note over Coordinator,TB: Upstream call is not cancelled
+    Coordinator->>DB: Record step problem cause DEADLINE
+    Coordinator->>DB: Settle partial or failed after terminal barrier
+    Steps->>TB: Upstream call completes later
+    Steps->>DB: Publish late result for the same attempt
+    alt Outcome not recorded yet and no successor
+      DB-->>Steps: Late result is preserved and counts at outcome derivation
+    else Successor attempt already started
+      DB-->>Steps: Publication rejected as stale
+    end
+  end