style: cargo fmt --all — make codebase rustfmt-clean

First run of the build-and-test CI gate (cargo fmt --all -- --check) surfaced
pre-existing formatting drift across the agent and server crates. Apply rustfmt
across the workspace so the codebase meets its own CI gate. Pure formatting; no
logic changes.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

agent/src/tray/mod.rs

@@ -9,12 +9,12 @@ use anyhow::Result;
 use muda::{Menu, MenuEvent, MenuItem, PredefinedMenuItem, Submenu};
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::Arc;
-use tray_icon::{Icon, TrayIcon, TrayIconBuilder, TrayIconEvent};
 use tracing::{info, warn};
+use tray_icon::{Icon, TrayIcon, TrayIconBuilder, TrayIconEvent};
 
 #[cfg(windows)]
 use windows::Win32::UI::WindowsAndMessaging::{
-    PeekMessageW, TranslateMessage, DispatchMessageW, MSG, PM_REMOVE,
+    DispatchMessageW, PeekMessageW, TranslateMessage, MSG, PM_REMOVE,
 };
 
 /// Events that can be triggered from the tray menu
@@ -38,7 +38,11 @@ pub struct TrayController {
 impl TrayController {
     /// Create a new tray controller
     /// `allow_end_session` - If true, show "End Session" menu item (only for support sessions)
-    pub fn new(machine_name: &str, support_code: Option<&str>, allow_end_session: bool) -> Result<Self> {
+    pub fn new(
+        machine_name: &str,
+        support_code: Option<&str>,
+        allow_end_session: bool,
+    ) -> Result<Self> {
         // Create menu items
         let status_text = if let Some(code) = support_code {
             format!("Support Session: {}", code)
@@ -166,9 +170,9 @@ fn create_default_icon() -> Result<Icon> {
 
             if dist <= radius {
                 // Green circle
-                rgba[idx] = 76;      // R
+                rgba[idx] = 76; // R
                 rgba[idx + 1] = 175; // G
-                rgba[idx + 2] = 80;  // B
+                rgba[idx + 2] = 80; // B
                 rgba[idx + 3] = 255; // A
             } else if dist <= radius + 1.0 {
                 // Anti-aliased edge