feat: shadcn -> rust-ui.com migration + TorrentDetail silme

- Tüm leptos-shadcn-* paketleri kaldırıldı (19 dependency)
- leptos_ui, tw_merge, strum eklendi
- components/ui/ modülü oluşturuldu (Button, Card, Input)
- TorrentDetail bileşeni tamamen silindi
- sidebar.rs: saf HTML+Tailwind ile SidebarButton yardımcı bileşeni
- toolbar.rs, login.rs, setup.rs, add_torrent.rs: saf HTML+Tailwind
- table.rs: shadcn Card -> rust-ui Card
- app.rs: Skeleton -> animate-pulse div

frontend/src/components/layout/toolbar.rs

@@ -1,6 +1,4 @@
 use leptos::prelude::*;
-use leptos_shadcn_input::Input;
-use leptos_shadcn_button::{Button, ButtonVariant, ButtonSize};
 use crate::components::torrent::add_torrent::AddTorrentDialog;
 
 #[component]
@@ -9,30 +7,36 @@ pub fn Toolbar() -> impl IntoView {
     let store = use_context::<crate::store::TorrentStore>().expect("store not provided");
     let is_mobile_menu_open = use_context::<RwSignal<bool>>().expect("mobile menu state not provided");
 
+    let search_value = RwSignal::new(String::new());
+    
+    // Sync search_value to store
+    Effect::new(move |_| {
+        let val = search_value.get();
+        store.search_query.set(val);
+    });
+
     view! {
         <div class="flex min-h-14 h-auto items-center border-b border-border bg-background px-4" style="padding-top: env(safe-area-inset-top);">
             // Sol kısım: Menü butonu + Add Torrent
             <div class="flex items-center gap-3">
                 // Mobile Menu Trigger
-                <Button
-                    variant=ButtonVariant::Ghost
-                    size=ButtonSize::Icon
-                    class="lg:hidden"
-                    on_click=Callback::new(move |()| is_mobile_menu_open.update(|v| *v = !*v))
+                <button
+                    class="inline-flex items-center justify-center size-9 rounded-md hover:bg-accent hover:text-accent-foreground lg:hidden"
+                    on:click=move |_| is_mobile_menu_open.update(|v| *v = !*v)
                 >
                     <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" class="w-5 h-5 stroke-current"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h16"></path></svg>
-                </Button>
+                </button>
                 
-                <Button
-                    class="gap-2 shadow"
-                    on_click=Callback::new(move |()| show_add_modal.1.set(true))
+                <button
+                    class="inline-flex items-center justify-center gap-2 h-9 px-4 py-2 rounded-md text-sm font-medium bg-primary text-primary-foreground shadow-xs hover:bg-primary/90 transition-all active:scale-[0.98]"
+                    on:click=move |_| show_add_modal.1.set(true)
                 >
                     <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" class="w-4 h-4 md:w-5 md:h-5">
                         <path stroke-linecap="round" stroke-linejoin="round" d="M12 4.5v15m7.5-7.5h-15" />
                     </svg>
                     <span class="hidden sm:inline">"Add Torrent"</span>
                     <span class="sm:hidden">"Add"</span>
-                </Button>
+                </button>
             </div>
 
             // Sağ kısım: Search kutusu
@@ -42,12 +46,11 @@ pub fn Toolbar() -> impl IntoView {
                         <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="absolute left-2.5 top-1/2 -translate-y-1/2 w-4 h-4 text-muted-foreground pointer-events-none">
                             <path stroke-linecap="round" stroke-linejoin="round" d="m21 21-5.197-5.197m0 0A7.5 7.5 0 1 0 5.196 5.196a7.5 7.5 0 0 0 10.607 10.607Z" />
                         </svg>
-                        <Input
-                            input_type="search"
+                        <input
+                            type="search"
                             placeholder="Search..."
-                            value=MaybeProp::derive(move || Some(store.search_query.get()))
-                            on_change=Callback::new(move |val: String| store.search_query.set(val))
-                            class="pl-8 h-9"
+                            class="file:text-foreground placeholder:text-muted-foreground border-input flex h-9 w-full min-w-0 rounded-md border bg-transparent px-3 py-1 text-base shadow-xs outline-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-2 md:text-sm pl-8"
+                            bind:value=search_value
                         />
                     </div>
                 </div>