fix: resolve critical runtime errors blocking permission modal

This fixes two severe bugs:
1. Missing debugConsoleStore import causing undefined variable errors
2. Replace non-existent .log() method with console.log()
3. Add #[serde(default)] to HikariConfig to handle missing fields gracefully

The undefined variable was causing initialization to fail, which prevented
the permission modal from displaying properly.

src-tauri/src/config.rs

@@ -28,6 +28,7 @@ pub struct ClaudeStartOptions {
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(default)]
 pub struct HikariConfig {
     #[serde(default)]
     pub model: Option<String>,

src/lib/tauri.ts

@@ -328,9 +328,15 @@ export async function initializeTauriListeners() {
   });
   unlisteners.push(cwdUnlisten);
 
+  console.log("[Tauri Listener] Setting up claude:permission listener");
   const permissionUnlisten = await listen<PermissionPromptEvent>("claude:permission", (event) => {
     const { permissions, conversation_id } = event.payload;
 
+    console.log(
+      `[Permission] Event received: ${permissions.length} permission(s) for conversation ${conversation_id || "active"}`,
+      { permissions, conversation_id }
+    );
+
     // Store each permission request for the specific conversation
     for (const permission of permissions) {
       const { id, tool_name, tool_input, description } = permission;