feat: point the fleet at wss LiveKit room uwh-telhai

Publish and subscribe over wss://livekit.uni-wh.de:7800 and refuse
cleartext ws://. Conference room is uwh-telhai. Includes the uncommitted
encoded H.264 publish path, Rally hairpin, and KMS wall overlay.

tests/test_drm_outputs.py

@@ -19,3 +19,29 @@ def test_select_three_prefers_xe_hdmi():
     assert three[0].name == "HDMI-A-7" or three[0].connected
     ids = [o.connector_id for o in three]
     assert len(set(ids)) == 3
+
+
+def test_named_disconnected_falls_back_to_connected_xe():
+    from drm_outputs import DrmOutput, pick_outputs
+
+    wall = DrmOutput(
+        name="HDMI-A-7", sysfs="card0-HDMI-A-7", node="/dev/dri/card0",
+        driver="xe", connector_id=538, status="connected", width=3840, height=2160,
+    )
+    stale_grid = DrmOutput(
+        name="HDMI-A-3", sysfs="card1-HDMI-A-3", node="/dev/dri/card1",
+        driver="i915", connector_id=530, status="disconnected",
+    )
+    stale_spk = DrmOutput(
+        name="HDMI-A-5", sysfs="card0-HDMI-A-5", node="/dev/dri/card0",
+        driver="xe", connector_id=520, status="disconnected",
+    )
+    picked = pick_outputs(
+        [stale_grid, stale_spk, wall],
+        n=2,
+        names=["HDMI-A-3", "HDMI-A-5"],
+    )
+    assert len(picked) == 1
+    assert picked[0].name == "HDMI-A-7"
+    assert picked[0].connected
+    assert picked[0].driver == "xe"