Repair: the Google Fonts host commands as 7f9e172 meant them (a staging race split them from 43fc8a1)

Two agents staged the same host files at once: 7f9e172 went in with the diagnostics' hunks of app.rs, commands.rs and lib.rs instead of its own, and 43fc8a1 then dropped fonts_commands.rs. This puts back exactly the Google Fonts wiring from the working tree (AppConfig::with_fonts, SiteHooks::fonts_changed, commands::GFONTS, the fonts handler, fonts_commands.rs); the diagnostics stay as committed. theme.rs, still in progress, is not included.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

crates/waybetter-host/src/app.rs

@@ -86,6 +86,9 @@ pub struct AppConfig {
     pub store: Option<&'static crate::store::StoreConfig>,
     /// The shell's media panel (gallery folders, the clipboard history): serves [`commands::MEDIA`].
     pub media: bool,
+    /// Google Fonts (install, remove, preview; the cache in app data): serves [`commands::GFONTS`]
+    /// and calls [`SiteHooks::fonts_changed`]. Needs the `net` feature.
+    pub fonts: bool,
 }
 
 impl AppConfig {
@@ -109,9 +112,16 @@ impl AppConfig {
             home_url: None,
             store: None,
             media: false,
+            fonts: false,
         }
     }
 
+    /// Serves the Google Fonts commands ([`commands::GFONTS`]).
+    pub const fn with_fonts(mut self) -> Self {
+        self.fonts = true;
+        self
+    }
+
     /// Serves the media panel's commands ([`commands::MEDIA`]).
     pub const fn with_media(mut self) -> Self {
         self.media = true;
@@ -202,6 +212,10 @@ pub trait SiteHooks: Send + Sync + 'static {
     /// A tab webview was created.
     fn tab_created(&self, _app: &AppHandle) {}
 
+    /// A Google font was installed or removed ([`commands::GFONTS`]): give the site tabs their
+    /// theme, and the font bytes, again.
+    fn fonts_changed(&self, _app: &AppHandle) {}
+
     /// `tab` was laid out for `item` (existing or new), before it is placed.
     fn tab_placed(&self, _app: &AppHandle, _tab: &Webview, _item: &TabLayout) {}
 
@@ -248,6 +262,11 @@ fn host_state(app: &AppHandle) -> tauri::State<'_, Host> {
     app.state::<Host>()
 }
 
+/// The app's site hooks ([`run_app`] must be running).
+pub(crate) fn hooks(app: &AppHandle) -> Arc<dyn SiteHooks> {
+    host_state(app).hooks.clone()
+}
+
 /// The app's config ([`run_app`] must be running).
 pub fn config(app: &AppHandle) -> AppConfig {
     host_state(app).config
@@ -1115,6 +1134,17 @@ fn store_handler() -> impl Fn(tauri::ipc::Invoke<Wry>) -> bool + Send + Sync + '
     |_| false
 }
 
+/// The Google Fonts commands ([`commands::GFONTS`]): with the `net` feature (downloads) only.
+#[cfg(feature = "net")]
+fn fonts_handler() -> impl Fn(tauri::ipc::Invoke<Wry>) -> bool + Send + Sync + 'static {
+    crate::fonts_commands::handler()
+}
+
+#[cfg(not(feature = "net"))]
+fn fonts_handler() -> impl Fn(tauri::ipc::Invoke<Wry>) -> bool + Send + Sync + 'static {
+    |_| false
+}
+
 /// The media panel's commands ([`commands::MEDIA`]).
 fn media_handler() -> impl Fn(tauri::ipc::Invoke<Wry>) -> bool + Send + Sync + 'static {
     crate::media_commands::handler()
@@ -1152,6 +1182,7 @@ impl App {
         let host_handler = host_handler();
         let store_handler = store_handler();
         let media_handler = media_handler();
+        let fonts_handler = fonts_handler();
         let builder = tauri::Builder::<Wry>::default()
             // Must be first: a second launch focuses the running window instead of fighting over
             // the app's data and WebView profile (and hands over its link).
@@ -1232,6 +1263,8 @@ impl App {
                 #[cfg(feature = "net")]
                 crate::store_commands::init(&handle, &config);
                 crate::media_commands::init(&handle);
+                #[cfg(feature = "net")]
+                crate::fonts_commands::init(&handle);
                 // Safe mode for this run: the launch argument, or Shift held while starting (Windows).
                 crate::safe::set(crate::safe::at_launch(std::env::args(), host::shift_held()));
                 // Focus and layering diagnostics for this run: `--diag` or WAYBETTER_DIAG=1 (app log folder, diag.log).
@@ -1250,6 +1283,8 @@ impl App {
                     store_handler(invoke)
                 } else if commands::MEDIA.contains(&invoke.message.command()) {
                     media_handler(invoke)
+                } else if commands::GFONTS.contains(&invoke.message.command()) {
+                    fonts_handler(invoke)
                 } else if commands::is_host(invoke.message.command()) {
                     host_handler(invoke)
                 } else {