fix(host/logs): mdns-sd noise gate + tracing-log target normalization in the log ring

log-crate events arrive through the tracing-log bridge under the shim target
"log" — normalize them back to the real module path (NormalizeEvent) so the
console's target column and the noise gate see mdns_sd::… , and suppress the
bridge's log.* bookkeeping fields like the stderr fmt layer does.

Gate known-chatty third-party DEBUG targets (mdns-sd DEBUG-logs every
unparseable multicast packet — one AirPlay device floods thousands of entries
per hour) to INFO-and-up in the ring, so ambient LAN noise can't evict the
tail the ring exists to preserve. stderr under RUST_LOG is unaffected.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Cargo.lock

@@ -2839,6 +2839,7 @@ dependencies = [
  "khronos-egl",
  "libc",
  "libloading",
+ "log",
  "mdns-sd",
  "nvidia-video-codec-sdk",
  "openh264",
@@ -2863,6 +2864,7 @@ dependencies = [
  "tokio-rustls",
  "tower",
  "tracing",
+ "tracing-log",
  "tracing-subscriber",
  "ureq",
  "usbip-sim",