const OTLP_HOST: &str = "127.0.0.1:4318";Expand description
OTLP collector host:port. OTELBridge.ts sends to /v1/traces (same-origin),
this proxy forwards to the real collector via raw TCP. Zero CORS issues.
Currently unused - the OTLP proxy path requires Response::set_handled /
set_status / Request::body() from a patched fork of
tauri-plugin-localhost. After resetting the vendored copy to upstream
(Dependency/Tauri/Dependency/PluginsWorkspace/plugins/localhost),
those methods are gone;