feat: add comprehensive logging for permission modal debugging

Added extensive logging to help diagnose permission modal issues:

Frontend:
- Capture unhandled errors via window.addEventListener('error')
- Capture unhandled promise rejections
- All errors now visible in debug console

Backend:
- Log when emitting permission events (count and conversation ID)
- Log each individual permission request being processed
- Log when system tools are skipped
- Log each denial being processed

This will help identify where the permission flow breaks in production builds.

src-tauri/src/wsl_bridge.rs

@@ -1239,8 +1239,18 @@ fn process_json_line(
                     for denial in denials {
                     // Skip system tools that should never require permission
                     if is_system_tool(&denial.tool_name) {
+                        tracing::debug!(
+                            "Skipping system tool: {} (id: {})",
+                            denial.tool_name,
+                            denial.tool_use_id
+                        );
                         continue;
                     }
+                    tracing::debug!(
+                        "Processing permission denial for: {} (id: {})",
+                        denial.tool_name,
+                        denial.tool_use_id
+                    );
 
                     // Special handling for AskUserQuestion tool
                     if denial.tool_name == "AskUserQuestion" {
@@ -1334,6 +1344,18 @@ fn process_json_line(
 
                 // Emit all regular permission requests as a single batched event
                 if !regular_permission_requests.is_empty() {
+                    tracing::info!(
+                        "Emitting permission event for {} tool(s) in conversation {:?}",
+                        regular_permission_requests.len(),
+                        conversation_id
+                    );
+                    for req in &regular_permission_requests {
+                        tracing::debug!(
+                            "Permission requested: {} (id: {})",
+                            req.tool_name,
+                            req.id
+                        );
+                    }
                     let _ = app.emit(
                         "claude:permission",
                         PermissionPromptEvent {