Hide console window, add Debug Window tray option

- Hide console window by default (windows_subsystem = "windows")
- Add "Show Debug Window" menu item to tray
- AllocConsole when debug window requested
- Console shows logs for troubleshooting

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

agent/src/main.rs

@@ -8,6 +8,9 @@
 //! If a support code is provided, the agent will connect using that code
 //! for a one-time support session.
 
+// Hide console window by default on Windows (release builds)
+#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
+
 mod capture;
 mod chat;
 mod config;
@@ -34,6 +37,10 @@ use windows::core::PCWSTR;
 use windows::Win32::Security::{GetTokenInformation, TokenElevation, TOKEN_ELEVATION, TOKEN_QUERY};
 #[cfg(windows)]
 use windows::Win32::System::Threading::{GetCurrentProcess, OpenProcessToken};
+#[cfg(windows)]
+use windows::Win32::System::Console::{AllocConsole, FreeConsole, GetConsoleWindow};
+#[cfg(windows)]
+use windows::Win32::UI::WindowsAndMessaging::{ShowWindow, SW_SHOW, SW_HIDE};
 
 /// Extract a 6-digit support code from the executable's filename.
 /// Looks for patterns like "GuruConnect-123456.exe" or "123456.exe"
@@ -125,6 +132,29 @@ fn show_message_box(_title: &str, _message: &str) {
     // No-op on non-Windows platforms
 }
 
+/// Show the debug console window (Windows only)
+#[cfg(windows)]
+fn show_debug_console() {
+    unsafe {
+        // Check if we already have a console
+        let hwnd = GetConsoleWindow();
+        if hwnd.0 == std::ptr::null_mut() {
+            // No console, allocate one
+            let _ = AllocConsole();
+            info!("Debug console window opened");
+        } else {
+            // Console exists, make sure it's visible
+            let _ = ShowWindow(hwnd, SW_SHOW);
+            info!("Debug console window shown");
+        }
+    }
+}
+
+#[cfg(not(windows))]
+fn show_debug_console() {
+    // No-op on non-Windows platforms
+}
+
 #[tokio::main]
 async fn main() -> Result<()> {
     // Initialize logging