feat: Enhance OAuth module and OpenRouter client functionality

- Updated OAuth module to include unused imports for better clarity.
- Refactored OpenRouterClient to improve chat functionality and added support for tools in chat requests.
- Modified internet tools (Download, Fetch, Search) to use a more flexible internet mode check.
- Introduced new Bash tools for managing background jobs (BashOutput, BashKill).
- Enhanced workflow tool to parse and execute workflow scripts with arguments.
- Updated status and workflow views to reflect new agent and findings counts.
- Added IPC protocol definitions for client requests and state payloads.

src/ipc/protocol.rs

@@ -0,0 +1,71 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub enum KeyAction {
+    Char(char),
+    Enter,
+    Escape,
+    Backspace,
+    Delete,
+    Tab,
+    Up,
+    Down,
+    Left,
+    Right,
+    Home,
+    End,
+    PageUp,
+    PageDown,
+    Function(u8),
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub enum ClientRequest {
+    Tick,
+    KeyPress {
+        key: KeyAction,
+        ctrl: bool,
+        alt: bool,
+        shift: bool,
+    },
+    Submit(String),
+    Resize(u16, u16),
+    Close,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct MessageEntry {
+    pub role: String,
+    pub content: String,
+    pub timestamp: i64,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ToastEntry {
+    pub kind: String,
+    pub message: String,
+    pub created_at: i64,
+    pub lifetime_ms: u64,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct StatePayload {
+    pub mode: String,
+    pub session_id: String,
+    pub messages: Vec<MessageEntry>,
+    pub edit_count: u32,
+    pub message_count: usize,
+    pub overlay: Option<String>,
+    pub toasts: Vec<ToastEntry>,
+    pub dirty: bool,
+    pub input_buffer: String,
+    pub input_cursor: usize,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub enum DaemonFrame {
+    StateUpdate(Box<StatePayload>),
+    StreamToken(String),
+    SystemNote { kind: String, message: String },
+    Closed,
+}