deduplicate task parsing and masking helpers

apps/backend/src/utils/task-json.ts

@@ -0,0 +1,26 @@
+export type JsonRecord = Record<string, any>
+
+export function parseJsonObject(value: unknown): JsonRecord {
+  if (!value) {
+    return {}
+  }
+
+  if (typeof value === 'object' && !Array.isArray(value)) {
+    return value as JsonRecord
+  }
+
+  try {
+    const parsed = JSON.parse(String(value || '{}'))
+    return parsed && typeof parsed === 'object' && !Array.isArray(parsed) ? parsed : {}
+  } catch {
+    return {}
+  }
+}
+
+export function parseTaskContext(task: { context_json?: unknown } | null | undefined): JsonRecord {
+  return parseJsonObject(task?.context_json)
+}
+
+export function parseTaskState(task: { state_json?: unknown } | null | undefined): JsonRecord {
+  return parseJsonObject(task?.state_json)
+}