fix: make list decode sequential for deterministic error correlation

Remove { concurrency: "unbounded" } from ProviderSessionRuntimeRepository.list's
Effect.forEach so that when multiple rows fail to decode, the first failing row
in the query's sort order (last_seen_at ASC, thread_id ASC) deterministically
surfaces its threadId in the PersistenceDecodeError, consistent with
AuthSessions.listActive.

Author: cursoragent

apps/server/src/persistence/ProviderSessionRuntime.ts

@@ -280,19 +280,16 @@ export const make = Effect.gen(function* () {
         ),
       ),
       Effect.flatMap((rows) =>
-        Effect.forEach(
-          rows,
-          (row) =>
-            decodeRuntimeRow(row).pipe(
-              Effect.mapError((cause) =>
-                PersistenceDecodeError.fromSchemaError(
-                  "ProviderSessionRuntimeRepository.list:decodeRows",
-                  cause,
-                  { threadId: row.threadId },
-                ),
+        Effect.forEach(rows, (row) =>
+          decodeRuntimeRow(row).pipe(
+            Effect.mapError((cause) =>
+              PersistenceDecodeError.fromSchemaError(
+                "ProviderSessionRuntimeRepository.list:decodeRows",
+                cause,
+                { threadId: row.threadId },
               ),
             ),
-          { concurrency: "unbounded" },
+          ),
         ),
       ),
     );