config cleanup

docs/CURRENT_SYSTEM_ARCHITECTURE.md

@@ -133,7 +133,7 @@ When a runtime shader build completes, the app publishes a render-layer artifact
 
 ## Video And Preview
 
-Video input and output are optional edges. `videoInputBackend` and `videoOutputBackend` select the concrete backend through the app-side backend factory. DeckLink is the current concrete backend, and `none` disables that edge. Configured video modes are represented in `src/video/core` and translated to DeckLink display modes only inside `src/video/decklink`.
+Video input and output are optional edges. `input.backend` and `output.backend` select the concrete backend through the app-side backend factory. DeckLink is the current concrete backend, and `none` disables that edge. `input` and `output` also carry the device selector plus resolution/frame-rate settings. Configured video modes are represented in `src/video/core` and translated to DeckLink display modes only inside `src/video/decklink`.
 
 The input edge writes CPU frames into `InputFrameMailbox`. The current DeckLink backend captures BGRA8 directly where possible, or raw UYVY8 for render-thread GPU decode. The input edge does not call GL, render, preview, screenshot, shader, or output scheduling code.
 

docs/openapi.yaml

@@ -561,22 +561,37 @@ components:
           type: number
         previewFps:
           type: number
-        enableExternalKeying:
-          type: boolean
-        videoInputBackend:
-          type: string
-          enum: [decklink, none]
-        videoOutputBackend:
-          type: string
-          enum: [decklink, none]
-        inputVideoFormat:
-          type: string
-        inputFrameRate:
-          type: string
-        outputVideoFormat:
-          type: string
-        outputFrameRate:
-          type: string
+        input:
+          type: object
+          properties:
+            backend:
+              type: string
+              enum: [decklink, none]
+            device:
+              type: string
+            resolution:
+              type: string
+            frameRate:
+              type: string
+        output:
+          type: object
+          properties:
+            backend:
+              type: string
+              enum: [decklink, none]
+            device:
+              type: string
+            resolution:
+              type: string
+            frameRate:
+              type: string
+            keying:
+              type: object
+              properties:
+                external:
+                  type: boolean
+                alphaRequired:
+                  type: boolean
     RuntimeStatus:
       type: object
       properties: