Refactor IPC and DTO structures; remove unused code and streamline message handling

- Removed unused structs and methods from `response.rs`, `usage.rs`, and `client.rs`.
- Simplified `Connection` handling in `conn.rs` to only support Unix sockets.
- Updated `IpcServer` to exclusively use Unix sockets and removed TCP handling.
- Cleaned up `editlog.rs` by removing loading and recent entry methods.
- Refactored `memory.rs` to eliminate unused functions related to lesson promotion and retrospective creation.
- Enhanced `search.rs` to support multiple search providers and improved error handling.
- Updated chat view logic to simplify message display and improve user experience.
- Removed deprecated modules and constants from various files to streamline the codebase.

src/app/state/misc.rs

@@ -19,11 +19,6 @@ impl DirCache {
         let mut w = self.entries.write().await;
         *w = paths;
     }
-
-    pub async fn get(&self) -> Vec<PathBuf> {
-        let r = self.entries.read().await;
-        r.clone()
-    }
 }
 
 #[derive(Debug, Clone)]
@@ -53,10 +48,6 @@ impl ScrollState {
         }
     }
 
-    pub fn scroll_to_bottom(&mut self, total: usize) {
-        self.offset = total.saturating_sub(self.max_visible);
-    }
-
     pub fn set_max_visible(&mut self, max: usize) {
         self.max_visible = max;
     }
@@ -202,26 +193,17 @@ impl InputState {
             None => {}
         }
     }
-
-    pub fn clear(&mut self) {
-        self.buffer.clear();
-        self.cursor = 0;
-        self.history_idx = None;
-    }
 }
 
 #[derive(Debug, Clone)]
 pub struct MiscState {
     pub overlay: Overlay,
     pub toasts: Vec<super::types::Toast>,
-    pub dirty: bool,
     pub yolo_armed: bool,
     pub security_armed: bool,
-    pub security_acknowledged: bool,
     pub esc_press_count: u32,
     pub last_staleness_sweep_ms: i64,
-    pub effort_level: usize,
-    pub editor: Option<crate::app::mode::editor::EditorState>,
+    pub thinking: bool,
 }
 
 impl MiscState {
@@ -229,14 +211,11 @@ impl MiscState {
         MiscState {
             overlay: Overlay::None,
             toasts: Vec::new(),
-            dirty: true,
             yolo_armed: false,
             security_armed: false,
-            security_acknowledged: false,
             esc_press_count: 0,
             last_staleness_sweep_ms: 0,
-            effort_level: 1,
-            editor: None,
+            thinking: false,
         }
     }
 

src/app/state/mod.rs

@@ -1,6 +1,4 @@
 pub mod misc;
 pub mod rest;
 pub mod runtime;
-pub mod diff;
-pub mod snapshot;
 pub mod types;

src/app/state/rest.rs

@@ -28,14 +28,6 @@ impl ChatMessageDisplay {
     }
 }
 
-#[derive(Clone)]
-pub struct CronJob {
-    pub id: String,
-    pub description: String,
-    pub cron_expr: String,
-    pub active: bool,
-}
-
 #[derive(Clone)]
 pub struct AppStateRest {
     pub mode: AgentMode,
@@ -46,12 +38,10 @@ pub struct AppStateRest {
     pub memory_dir: PathBuf,
     pub download_dir: PathBuf,
     pub worktrees_dir: PathBuf,
-    pub current_dir: PathBuf,
     pub dir_cache: Arc<RwLock<DirCache>>,
     pub edit_log: EditLog,
     pub session_runtime: Option<SessionRuntime>,
     pub sessions: Vec<crate::model::session::Session>,
-    pub crons: Vec<CronJob>,
     pub transcript_cache: TranscriptCache,
     pub scroll: ScrollState,
     pub input: InputState,
@@ -83,7 +73,6 @@ impl AppStateRest {
             memory_dir,
             download_dir,
             worktrees_dir,
-            current_dir: std::env::current_dir().unwrap_or_default(),
             turn_events: Arc::new(Mutex::new(VecDeque::new())),
             turn_in_flight: Arc::new(Mutex::new(false)),
             dir_cache: Arc::new(RwLock::new(dir_cache)),
@@ -92,7 +81,6 @@ impl AppStateRest {
             workflow_engine: WorkflowEngine::new(),
             mcp_manager: McpManager::new(),
             sessions: Vec::new(),
-            crons: Vec::new(),
             transcript_cache: TranscriptCache::new(200),
             scroll: ScrollState::new(),
             input: InputState::new(),
@@ -102,10 +90,6 @@ impl AppStateRest {
         }
     }
 
-    pub fn mode(&self) -> AgentMode {
-        self.mode
-    }
-
     pub fn turn_in_flight(&self) -> bool {
         self.turn_in_flight.lock().map(|g| *g).unwrap_or(false)
     }
@@ -147,7 +131,7 @@ impl AppStateRest {
             workspaces: self.workspace_roots.clone(),
             session_dir: self.session_dir.clone(),
             memory_dir: self.memory_dir.clone(),
-            download_dir: self.download_dir.clone(),
+            _download_dir: self.download_dir.clone(),
             worktrees_dir: self.worktrees_dir.clone(),
             dir_cache: self.dir_cache.clone(),
             internet_mode: self.settings.internet_mode.clone(),

src/app/state/runtime.rs

@@ -109,15 +109,4 @@ impl SessionRuntime {
     pub fn push_message(&mut self, msg: crate::dto::chat::message::ChatMessage) {
         self.messages.push(msg);
     }
-
-    pub fn record_api_call(&mut self, tokens_in: u64, tokens_out: u64, duration_ms: u64) {
-        self.usage.tokens_in += tokens_in;
-        self.usage.tokens_out += tokens_out;
-        self.usage.api_calls += 1;
-        self.usage.total_ms += duration_ms;
-    }
-
-    pub fn record_review_tokens(&mut self, tokens: u64) {
-        self.usage.review_tokens += tokens;
-    }
 }

src/app/state/types.rs

@@ -32,27 +32,6 @@ impl AgentMode {
     }
 }
 
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
-pub enum PanelKind {
-    Chat,
-    Agents,
-    Bash,
-    Workflow,
-    Help,
-}
-
-impl PanelKind {
-    pub fn name(&self) -> &'static str {
-        match self {
-            PanelKind::Chat => "Chat",
-            PanelKind::Agents => "Agents",
-            PanelKind::Bash => "Bash",
-            PanelKind::Workflow => "Workflow",
-            PanelKind::Help => "Help",
-        }
-    }
-}
-
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
 pub enum ToastKind {
     Info,