enhance description

Author: tomasmontielp

openmetadata-spec/src/main/resources/json/schema/configuration/aiPlatformConfiguration.json

@@ -27,7 +27,7 @@
           "type": "integer"
         },
         "streamDeadlineMinutes": {
-          "description": "Client-side deadline (minutes) for an AI Platform streaming response. If the stream has not completed within this window the client abandons it and surfaces a timeout. Must be coordinated with any server-side deadline on the AI Platform side; the chat lock sweeper derives its default ceiling as streamDeadlineMinutes + 2. Capped at 60 minutes — longer tasks should use an async job + polling pattern rather than a single long-lived streaming RPC.",
+          "description": "Deadline (minutes) Collate enforces on an AI Platform streaming response. Carried on the gRPC call, so the AI Platform reads it from context and wraps up gracefully. The chat lock sweeper uses streamDeadlineMinutes + 2 as its default stale-lock ceiling (override via COLLATE_CHAT_LOCK_MAX_DURATION_MINUTES). Capped at 60 minutes; for longer tasks prefer async job + polling over a single long-lived stream.",
           "type": "integer",
           "default": 20,
           "minimum": 1,