telemetry and timing updates

docs/openapi.yaml

@@ -557,8 +557,6 @@ components:
           type: number
         previewFps:
           type: number
-        startupSettleMs:
-          type: number
         enableExternalKeying:
           type: boolean
         inputVideoFormat:
@@ -721,6 +719,25 @@ components:
           type: number
         inputCaptureFormat:
           type: string
+        deckLinkScheduleLeadAvailable:
+          type: boolean
+          description: Whether DeckLink playback stream-time lead telemetry is currently available.
+        deckLinkScheduleLeadFrames:
+          type: number
+          nullable: true
+          description: Estimated number of frame intervals between the next app schedule timestamp and the DeckLink playback frame index.
+        deckLinkPlaybackFrameIndex:
+          type: number
+          description: DeckLink playback stream time converted to frame index at the configured output cadence.
+        deckLinkNextScheduleFrameIndex:
+          type: number
+          description: Next frame index the app scheduler will assign to a DeckLink output frame.
+        deckLinkPlaybackStreamTime:
+          type: number
+          description: Raw DeckLink scheduled playback stream time in the output mode time scale.
+        deckLinkScheduleRealignments:
+          type: number
+          description: Count of schedule-cursor recovery realignments triggered by DeckLink late/drop pressure.
     BackendPlayoutStatus:
       type: object
       properties: