Devices: fixes from review round 4

- A switch clears every headset-specific list and its buttons at once.
- SSH goes to the IPv4 address that answered the probe, not the name again.
- A rejected headset edit changes nothing.
- The SteamOS/Lepton builds recorded in reports are read again per headset.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

ui/server.py

@@ -87,6 +87,8 @@ def route(alias, host_opts):
     them follows; frame_titles reads frame_android.SSH_OPTS at call time."""
     global FRAME, HOST_OPTS
     with _route_lock:
+        if alias != FRAME:
+            frame_catalog._env.clear()  # the SteamOS and Lepton builds reports record are per headset
         FRAME = frame_android.FRAME = alias
         HOST_OPTS = list(host_opts)
         MUX[:] = [*MUX_BASE, *HOST_OPTS]