Combines dioxus's desktop (webview) renderer with the existing `server`
feature so `#[server]` functions execute in-process instead of going over
HTTP — one self-contained native binary with DB, feed polling, LLM calls,
and the scheduler, no separate server to run. main.rs picks the desktop
launcher explicitly since dioxus::launch's automatic platform detection
would otherwise prefer the (also-enabled) server platform over desktop.
Verified: cargo check/clippy pass for the new feature (native crates and
existing server/web features unaffected), and running the built binary
opens a window and completes an in-process server-fn call (DB connects,
migrations run) with no HTTP round trip. CI gets a matching desktop
clippy job with the GTK/WebKit apt packages dioxus-desktop needs to
compile on Linux.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>