feat: add visual todo list panel

- Add TodoPanel component to display TodoWrite tool calls
- Create todos Svelte store to track todo state
- Emit todo-update Tauri event when TodoWrite is called
- Add todo button to status bar (next to session history)
- Display todos with status icons, progress bar, and completion count
- Real-time updates as I work through tasks

Closes #132

src-tauri/src/types.rs

@@ -282,6 +282,21 @@ pub struct AgentEndEvent {
     pub num_turns: Option<u32>,
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct TodoItem {
+    pub content: String,
+    pub status: String, // "pending", "in_progress", or "completed"
+    #[serde(rename = "activeForm")]
+    pub active_form: String,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct TodoUpdateEvent {
+    pub todos: Vec<TodoItem>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub conversation_id: Option<String>,
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

src-tauri/src/wsl_bridge.rs

@@ -16,8 +16,8 @@ use crate::stats::{calculate_cost, StatsUpdateEvent, UsageStats};
 use crate::types::{
     AgentEndEvent, AgentStartEvent, CharacterState, ClaudeMessage, ConnectionEvent,
     ConnectionStatus, ContentBlock, MessageCost, OutputEvent, PermissionPromptEvent,
-    PermissionPromptEventItem, QuestionOption, SessionEvent, StateChangeEvent,
-    UserQuestionEvent, WorkingDirectoryEvent,
+    PermissionPromptEventItem, QuestionOption, SessionEvent, StateChangeEvent, TodoItem,
+    TodoUpdateEvent, UserQuestionEvent, WorkingDirectoryEvent,
 };
 use parking_lot::RwLock;
 use std::cell::RefCell;
@@ -937,6 +937,34 @@ fn process_json_line(
                             );
                         }
 
+                        // Emit todo-update event for TodoWrite tool invocations
+                        if name == "TodoWrite" {
+                            if let Some(todos_value) = input.get("todos") {
+                                if let Some(todos_array) = todos_value.as_array() {
+                                    let todos: Vec<TodoItem> = todos_array
+                                        .iter()
+                                        .filter_map(|todo| {
+                                            serde_json::from_value(todo.clone()).ok()
+                                        })
+                                        .collect();
+
+                                    tracing::debug!(
+                                        "Emitting todo-update: {} todos, parent={:?}",
+                                        todos.len(),
+                                        parent_tool_use_id
+                                    );
+
+                                    let _ = app.emit(
+                                        "claude:todo-update",
+                                        TodoUpdateEvent {
+                                            todos,
+                                            conversation_id: conversation_id.clone(),
+                                        },
+                                    );
+                                }
+                            }
+                        }
+
                         let desc = format_tool_description(name, input);
                         let _ = app.emit(
                             "claude:output",