movement: smooth animated moves (move duration, observable intermediate positions) + proactive cruise (glide while the LLM thinks, collision-safe, reported back); verified mission with gpt-5.6-luna

testbed/README.md

@@ -64,6 +64,20 @@ taken); stop the old one with `fuser -k 8765/tcp` or Ctrl-C in its terminal.
 The demo prints a full transcript of tool calls/results to stdout and saves the
 capsule's final first-person frame to `demo_final_frame.png`.
 
+### Smooth & proactive movement
+
+The capsule no longer teleports or stops-and-thinks:
+
+- **Smooth**: `move(forward, duration)` animates the displacement over
+  `duration` seconds on the bridge, so the live viewer shows genuine gliding.
+  The scripted agent and auto-cruise use it by default; the LLM can too.
+- **Proactive** (`--cruise N`, meters per think): while the model is
+  generating a response, the capsule keeps gliding forward (low-level
+  controller pattern, like a real robot). Collisions stop the drift safely
+  and are reported to the model, which re-plans. Verified: gpt-5.6-luna
+  completed the beacon mission with cruise on, bumping into and avoiding
+  crates while "thinking".
+
 ## Providers
 
 Provider presets resolve endpoint + API key + default model: