EDIT: Docs and minor bug fixed

docs/RUNTIME.md

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+**Runtime Controls & Debug UI**
+
+- Camera
+  - Move: `W/A/S/D`
+  - Look: hold Right Mouse Button
+  - Mouse wheel: adjust movement speed
+  - Ctrl + wheel: adjust FOV (30°..110°)
+
+- Windows (ImGui)
+  - Background: choose compute background effect and `Render Scale`.
+  - Stats: frame/draw/update timings, triangle and draw counts.
+  - GPU/Resources: per‑frame allocations and render‑graph resource view.
+  - Pipelines: list graphics pipelines and hot‑reload changed shaders.
+  - Targets: swapchain/draw extent/format info.
+  - PostFX: tonemap operator (Reinhard/ACES) and exposure.
+  - Scene: counts of opaque/transparent draws.
+
+- Shadow Modes
+  - Cascaded shadow mapping (CSM) is the default; cascades are created per‑frame via the render graph.
+  - If ray tracing extensions and device support are present, ray‑traced shadows can be enabled via `_context->shadowSettings.mode` (see `src/core/config.h` and usage in `LightingPass`).
+