feat: unify life-sim play controls

README.md

@@ -72,6 +72,22 @@ npm install
 npm run dev
 ```
 
+## Play controls
+
+The bottom mode dock is the local-player source of truth: View, Drive, Explore,
+Fly, or office Walk. A transition clears stale held input and atomically hands
+the follow camera to one subsystem. `WASD` is movement; `Q/E` is vertical or
+yaw, `I/K` pitches the crow, Space is the primary action, `G` glides, `P`
+resumes assistance, `R` resets, and `C` switches the driving camera. A standard
+gamepad maps both sticks, triggers, shoulders, and rising-edge action buttons.
+
+Touch play uses a pointer-ID analogue stick at lower left and only the actions
+that apply to the current mode at lower right. The Map button remains available
+during possession. Touch, keyboard, and gamepad state are independent, so a
+released or cancelled finger cannot clear another source that is still held.
+The UI and follow camera are presentation adapters only; they never enter Arena
+observations, rewards, snapshots, traces, or simulator hashes.
+
 ## Headless RL environments
 
 Tera also exports a versioned, renderer-independent Arena contract with five