feat: support orientation-aware recording and device wakefulness

Roll scrcpy recordings by device rotation and duration, and publish timeline manifests for playback and analysis.

Add seamless segmented playback in the showcase UI and configurable stay-awake strategies for Android automation.

.env.example

@@ -19,6 +19,9 @@ OCR_API_KEY=
 ADB_HOST=127.0.0.1
 ADB_PORT=5037
 # ADB_DEVICE_SERIAL=
+# Keep the display awake, falling back to a wake lock or safe heartbeat when needed.
+# Set to false if Artemis is used with a personal device whose screen should time out.
+ARTEMIS_KEEP_DEVICE_AWAKE=true
 
 # Artemis Execution Defaults (flash or pro)
 ARTEMIS_DEFAULT_PROFILE=flash