refactor: implement trait-based DI for TdClient and fix stack overflow

Implement complete trait-based dependency injection pattern for TdClient
to enable testing with FakeTdClient mock. Fix critical stack overflow bugs
caused by infinite recursion in trait implementations.

Breaking Changes:
- App is now generic: App<T: TdClientTrait = TdClient>
- All UI and input handlers are generic over TdClientTrait
- TdClient methods now accessed through trait interface

New Files:
- src/tdlib/trait.rs: TdClientTrait definition with 40+ methods
- src/tdlib/client_impl.rs: TdClientTrait impl for TdClient
- tests/helpers/fake_tdclient_impl.rs: TdClientTrait impl for FakeTdClient

Critical Fixes:
- Fix stack overflow in send_message, edit_message, delete_messages
- Fix stack overflow in forward_messages, current_chat_messages
- Fix stack overflow in current_pinned_message
- All methods now call message_manager directly to avoid recursion

Testing:
- FakeTdClient supports configurable auth_state for auth screen tests
- Added pinned message support in FakeTdClient
- All 196+ tests passing (188 tests + 8 benchmarks)

Dependencies:
- Added async-trait = "0.1"

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

tests/helpers/fake_tdclient.rs

@@ -2,7 +2,7 @@
 
 use std::collections::HashMap;
 use std::sync::{Arc, Mutex};
-use tele_tui::tdlib::{ChatInfo, MessageInfo, NetworkState, ProfileInfo, ReplyInfo};
+use tele_tui::tdlib::{AuthState, ChatInfo, MessageInfo, NetworkState, ProfileInfo, ReplyInfo};
 use tele_tui::tdlib::types::{FolderInfo, ReactionInfo};
 use tele_tui::types::{ChatId, MessageId, UserId};
 use tokio::sync::mpsc;
@@ -35,6 +35,8 @@ pub struct FakeTdClient {
     pub network_state: Arc<Mutex<NetworkState>>,
     pub typing_chat_id: Arc<Mutex<Option<i64>>>,
     pub current_chat_id: Arc<Mutex<Option<i64>>>,
+    pub current_pinned_message: Arc<Mutex<Option<MessageInfo>>>,
+    pub auth_state: Arc<Mutex<AuthState>>,
     
     // История действий (для проверки в тестах)
     pub sent_messages: Arc<Mutex<Vec<SentMessage>>>,
@@ -108,6 +110,8 @@ impl Clone for FakeTdClient {
             network_state: Arc::clone(&self.network_state),
             typing_chat_id: Arc::clone(&self.typing_chat_id),
             current_chat_id: Arc::clone(&self.current_chat_id),
+            current_pinned_message: Arc::clone(&self.current_pinned_message),
+            auth_state: Arc::clone(&self.auth_state),
             sent_messages: Arc::clone(&self.sent_messages),
             edited_messages: Arc::clone(&self.edited_messages),
             deleted_messages: Arc::clone(&self.deleted_messages),
@@ -138,6 +142,8 @@ impl FakeTdClient {
             network_state: Arc::new(Mutex::new(NetworkState::Ready)),
             typing_chat_id: Arc::new(Mutex::new(None)),
             current_chat_id: Arc::new(Mutex::new(None)),
+            current_pinned_message: Arc::new(Mutex::new(None)),
+            auth_state: Arc::new(Mutex::new(AuthState::Ready)),
             sent_messages: Arc::new(Mutex::new(vec![])),
             edited_messages: Arc::new(Mutex::new(vec![])),
             deleted_messages: Arc::new(Mutex::new(vec![])),
@@ -221,6 +227,12 @@ impl FakeTdClient {
         *self.network_state.lock().unwrap() = state;
         self
     }
+
+    /// Установить состояние авторизации
+    pub fn with_auth_state(self, state: AuthState) -> Self {
+        *self.auth_state.lock().unwrap() = state;
+        self
+    }
     
     /// Установить доступные реакции
     pub fn with_available_reactions(self, reactions: Vec<String>) -> Self {