fix(host/log): drop the wasapi crate's once-a-second DEBUG device-poll from the logs

The `wasapi` audio crate polls the default output device ~1×/s and
`log::debug!`s it (`wasapi::api default device Ok(...)`), flooding host.log
even at RUST_LOG=info: those `log`-crate records reach tracing through the
tracing-log bridge, and at *filter* time they carry the bridge's "log" shim
target, so neither a bare-info EnvFilter nor a `wasapi=warn` directive on the
file layer matches them (the ring already drops them post-hoc via
normalized_metadata + NOISY_DEBUG_TARGETS — the fmt layer filters pre-event and
can't).

Fix at the source: a shared `log_capture::install_global` replaces
SubscriberInitExt::init in both init paths (service file log + interactive
stderr) and inits the tracing-log bridge with `ignore_crate("wasapi")`, so the
poll records are dropped before they ever become tracing events — both sinks go
quiet, while every other log-crate dependency still reaches the console ring
(bridge max-level stays DEBUG). `wasapi` also added to NOISY_DEBUG_TARGETS as
belt-and-suspenders, and `log` moved dev-dep -> dep for LevelFilter.

Validated: .21 clippy (host --features nvenc) clean.

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

crates/punktfunk-host/Cargo.toml

@@ -54,6 +54,9 @@ tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 # back to the real module path, so the console's target column and the ring's noise gate see
 # `mdns_sd::…` instead of "log".
 tracing-log = "0.2"
+# `log::LevelFilter` for the bridge's max-level in `log_capture::install_global` (which inits the
+# tracing-log bridge with `ignore_crate("wasapi")`). Already in the tree transitively.
+log = "0.4"
 axum = "0.8"
 mdns-sd = "0.20"
 # Wake-on-LAN: report the host's wake-capable NIC MAC(s) to clients via the mDNS `mac` TXT record.
@@ -114,8 +117,6 @@ tower = { version = "0.5", features = ["util"] }
 http-body-util = "0.1"
 # Disposable directory fixtures for the Steam local-librarycache scan tests (library.rs).
 tempfile = "3"
-# Emit `log`-crate records through the tracing-log bridge in the log_capture tests.
-log = "0.4"
 
 # Opus encode for the host->client audio plane — stereo (`opus::Encoder`) AND 5.1/7.1 surround
 # (`opus::MSEncoder`, the safe multistream API the crate exposes; no `audiopus_sys` needed). The