- added camera black board fetch and post

- region selector can save settings and painted regions and fetch on load

- will add reset all

src/features/cameras/components/Video/VideoFeedGridPainter.tsx

@@ -16,7 +16,7 @@ const gap = 0;
 const VideoFeedGridPainter = () => {
   const { state } = useCameraFeedContext();
   const cameraFeedID = state.cameraFeedID;
-  const paintedCells = state.paintedCells[cameraFeedID];
+  const paintedCells = state?.paintedCells?.[cameraFeedID];
   const regions = state.regionsByCamera[cameraFeedID];
   const selectedRegionIndex = state.selectedRegionIndex;
   const mode = state.modeByCamera[cameraFeedID];
@@ -135,7 +135,8 @@ const VideoFeedGridPainter = () => {
           <Shape
             sceneFunc={(ctx, shape) => {
               const cells = paintedCells;
-              cells.forEach((cell, key) => {
+              if (!cells || cells.size === 0 || !paintLayerRef.current) return;
+              cells?.forEach((cell, key) => {
                 const [rowStr, colStr] = key.split("-");
                 const row = Number(rowStr);
                 const col = Number(colStr);