feat: stream yolo at 4k

virtio-gpu exposes no NVENC/VAAPI, so sunshine software-encodes. Measured
x264 (superfast+zerolatency) on the 8 vCPUs: 73fps at 2160p against 135fps
at 1440p, so a 60fps client keeps roughly 20% margin.

Also brings the drifted agent-of-empires config upstream, which the
mutableFiles guard required before switching.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

home/yolo/aoe-config.toml

@@ -79,7 +79,7 @@ prevent_sleep_when_active = false
 restart_wake_message = "wake up: pick up what you were doing"
 row_tag = "none"
 show_session_colors = true
-show_tips = true
+show_tips = false
 smart_rename = true
 smart_rename_agent = ""
 snooze_duration_minutes = 30
@@ -112,7 +112,7 @@ enabled = false
 [theme]
 color_mode = "truecolor"
 idle_decay_minutes = 0
-name = ""
+name = "zinc"
 
 [tmux]
 clipboard = "auto"