Initial visionLabs Roku scaffold

docs/ROADMAP.md

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+# visionLabs Roku roadmap
+
+## Phase 1
+
+- Static packaged camera config
+- Simple Roku SceneGraph shell
+- One screen with a fixed camera grid
+- HLS-backed streams only
+
+## Phase 2
+
+- Config loader and camera tile rendering
+- Snapshot fallback if a stream is unavailable
+- Focus movement and remote navigation
+
+## Phase 3
+
+- In-app edit mode for camera names and layout
+- Persistence strategy for edits
+- Basic app settings screen
+
+## Phase 4
+
+- Backend API for camera registry and layout
+- Authentication and access control
+- Multiple saved layouts
+
+## Constraints
+
+- Roku does not directly fit raw RTSP workflows well
+- HLS is the safest first-class playback target
+- Packaged JSON is fine for V1 but not enough for runtime editing