fix(cast): localize UPnP URL compatibility and harden crash diagnostics

Keep http 1.5 and tolerate empty or relative service URLs in a local rupnp patch. Cover standard DLNA SOAP requests and malformed descriptions.

Avoid logger locks in fatal handlers, flush emitted log batches, and preserve CI symbols after smoke failures.

cx

crates/qbz-cast/Cargo.toml

@@ -18,18 +18,9 @@ tiny_http = "0.12"
 rupnp = { version = "3", features = ["full_device_spec"] }
 futures-util = "0.3"
 
-# PINNED, do not bump without reading this (#745, 2.1.0 regression):
-# rupnp parses a device description's SCPDURL / controlURL / eventSubURL as
-# `http::uri::PathAndQuery`. http 1.5.0 rewrote that parser and now REJECTS
-# two shapes 1.4.0 accepted -- an empty element (ErrorKind::Empty, printed as
-# "empty string") and any relative URL without a leading slash
-# (PathDoesNotStartWithSlash). Both are common in old UPnP firmware, so the
-# bump made rupnp drop those renderers entirely: a KEF LSX gen 1 that worked
-# in 2.0.2 (http 1.4.0) reported "Visible Renderers: 0" in 2.1.0. The pin is
-# workspace-wide by unification and is guarded by
-# tests/dlna_description_tolerance.rs -- if that suite fails, this pin was
-# lifted. Drop it only once rupnp stops using PathAndQuery for relative URLs.
-http = "=1.4.0"
+# The workspace patches rupnp's service endpoint parser for legacy UPnP URLs
+# (#745). Keep http current; never downgrade the whole HTTP graph for a device.
+http = "1.5"
 
 # Serialization
 serde = { version = "1", features = ["derive"] }