fix: handle undefined safeStorage and remove diagnostic logging

Root cause: electron.safeStorage was undefined (not null) when the
property doesn't exist, causing "Cannot read properties of undefined"
error when accessing isEncryptionAvailable.

Fix: Normalize undefined to null with `|| null` operator when importing
safeStorage, ensuring consistent null checks throughout the code.

Changes:
- Set safeStorage to null if electron.safeStorage is undefined
- Remove all diagnostic try-catch blocks from settings UI
- Remove console.log debugging statements
- Restore clean code that now works correctly

This resolves the settings UI crash that prevented the API key
management section from displaying.

src/settings.ts

@@ -61,7 +61,6 @@ export class MCPServerSettingTab extends PluginSettingTab {
 		// Authentication (Always Enabled)
 		containerEl.createEl('h3', {text: 'Authentication'});
 
-		try {
 		const authDesc = containerEl.createEl('p', {
 			text: 'Authentication is required for all requests. Your API key is encrypted and stored securely using your system\'s credential storage.'
 		});
@@ -70,30 +69,16 @@ export class MCPServerSettingTab extends PluginSettingTab {
 		authDesc.style.marginBottom = '16px';
 
 		// Show encryption status
-			const encryptionAvailable = isEncryptionAvailable();
-			console.log('[Settings] Encryption available:', encryptionAvailable);
-
 		const encryptionStatus = containerEl.createEl('p', {
-				text: encryptionAvailable
+			text: isEncryptionAvailable()
 				? '🔒 Encryption: Available (using system keychain)'
 				: '⚠️ Encryption: Unavailable (API key stored in plaintext)'
 		});
 		encryptionStatus.style.fontSize = '0.85em';
 		encryptionStatus.style.marginBottom = '12px';
 		encryptionStatus.style.fontStyle = 'italic';
-		} catch (error) {
-			console.error('[Settings] Error in auth description section:', error);
-			containerEl.createEl('p', {
-				text: '⚠️ Error displaying authentication section: ' + (error instanceof Error ? error.message : String(error)),
-				cls: 'mod-error'
-			});
-		}
 
 		// API Key Display (always show - auth is always enabled)
-		console.log('[Settings] About to render API key section');
-		console.log('[Settings] API key length:', (this.plugin.settings.apiKey || '').length);
-
-		try {
 		new Setting(containerEl)
 			.setName('API Key Management')
 			.setDesc('Use this key in the Authorization header as Bearer token');
@@ -141,15 +126,6 @@ export class MCPServerSettingTab extends PluginSettingTab {
 		keyDisplayContainer.style.marginBottom = '16px';
 		keyDisplayContainer.textContent = this.plugin.settings.apiKey || '';
 
-			console.log('[Settings] API key section rendered successfully');
-		} catch (error) {
-			console.error('[Settings] Error rendering API key section:', error);
-			containerEl.createEl('p', {
-				text: '⚠️ Error displaying API key: ' + (error instanceof Error ? error.message : String(error)),
-				cls: 'mod-error'
-			});
-		}
-
 		// MCP Client Configuration (show always, regardless of auth)
 		containerEl.createEl('h3', {text: 'MCP Client Configuration'});
 		

src/utils/encryption-utils.ts

@@ -2,7 +2,7 @@
 let safeStorage: any = null;
 try {
 	const electron = require('electron');
-	safeStorage = electron.safeStorage;
+	safeStorage = electron.safeStorage || null;
 } catch (error) {
 	console.warn('Electron safeStorage not available, API keys will be stored in plaintext');
 }