feat: Tax route fix + Local Pickup + Email/Notifications settings

## 1. Fixed Tax Settings Route ✅
- Changed /settings/taxes → /settings/tax in nav tree
- Now matches App.tsx route
- Tax page now loads correctly

## 2. Advanced Local Pickup ✅
Frontend (LocalPickup.tsx):
- Add/edit/delete pickup locations
- Enable/disable locations
- Full address fields (street, city, state, postcode)
- Phone number and business hours
- Clean modal UI for adding locations

Backend (PickupLocationsController.php):
- GET /settings/pickup-locations
- POST /settings/pickup-locations (create)
- POST /settings/pickup-locations/:id (update)
- DELETE /settings/pickup-locations/:id
- POST /settings/pickup-locations/:id/toggle
- Stores in wp_options as array

## 3. Email/Notifications Settings ✅
Frontend (Notifications.tsx):
- List all WooCommerce emails
- Separate customer vs admin emails
- Enable/disable toggle for each email
- Show from name/email
- Link to WooCommerce for advanced config

Backend (EmailController.php):
- GET /settings/emails - List all emails
- POST /settings/emails/:id/toggle - Enable/disable
- Uses WC()->mailer()->get_emails()
- Auto-detects recipient type (customer/admin)

## Features:
✅ Simple, non-tech-savvy UI
✅ All CRUD operations
✅ Real-time updates
✅ Links to WooCommerce for advanced settings
✅ Mobile responsive

Next: Test all settings pages

includes/Api/EmailController.php

@@ -0,0 +1,144 @@
+<?php
+/**
+ * Email Settings REST API Controller
+ *
+ * @package WooNooW
+ */
+
+namespace WooNooW\Api;
+
+use WP_REST_Controller;
+use WP_REST_Server;
+use WP_REST_Request;
+use WP_REST_Response;
+use WP_Error;
+
+class EmailController extends WP_REST_Controller {
+
+	/**
+	 * Register routes
+	 */
+	public function register_routes() {
+		$namespace = 'woonoow/v1';
+
+		// Get email settings
+		register_rest_route(
+			$namespace,
+			'/settings/emails',
+			array(
+				'methods'             => WP_REST_Server::READABLE,
+				'callback'            => array( $this, 'get_settings' ),
+				'permission_callback' => array( $this, 'check_permission' ),
+			)
+		);
+
+		// Toggle email
+		register_rest_route(
+			$namespace,
+			'/settings/emails/(?P<email_id>[a-zA-Z0-9_-]+)/toggle',
+			array(
+				'methods'             => WP_REST_Server::CREATABLE,
+				'callback'            => array( $this, 'toggle_email' ),
+				'permission_callback' => array( $this, 'check_permission' ),
+			)
+		);
+	}
+
+	/**
+	 * Check permission
+	 */
+	public function check_permission() {
+		return current_user_can( 'manage_woocommerce' );
+	}
+
+	/**
+	 * Get email settings
+	 */
+	public function get_settings( WP_REST_Request $request ) {
+		try {
+			$email_settings = array();
+			$emails         = \WC()->mailer()->get_emails();
+
+			foreach ( $emails as $email ) {
+				$recipient = 'customer';
+				
+				// Determine recipient type
+				if ( strpos( $email->id, 'admin' ) !== false || 
+				     strpos( $email->id, 'new_order' ) !== false ||
+				     strpos( $email->id, 'cancelled_order' ) !== false ||
+				     strpos( $email->id, 'failed_order' ) !== false ) {
+					$recipient = 'admin';
+				}
+
+				$email_settings[] = array(
+					'id'          => $email->id,
+					'title'       => $email->get_title(),
+					'description' => $email->get_description(),
+					'enabled'     => $email->is_enabled() ? 'yes' : 'no',
+					'recipient'   => $recipient,
+				);
+			}
+
+			$settings = array(
+				'emails'     => $email_settings,
+				'from_name'  => get_option( 'woocommerce_email_from_name' ),
+				'from_email' => get_option( 'woocommerce_email_from_address' ),
+			);
+
+			return new WP_REST_Response( $settings, 200 );
+		} catch ( \Exception $e ) {
+			return new WP_REST_Response(
+				array(
+					'error'   => 'fetch_failed',
+					'message' => $e->getMessage(),
+				),
+				500
+			);
+		}
+	}
+
+	/**
+	 * Toggle email
+	 */
+	public function toggle_email( WP_REST_Request $request ) {
+		try {
+			$email_id = $request->get_param( 'email_id' );
+			$enabled  = rest_sanitize_boolean( $request->get_param( 'enabled' ) );
+			$emails   = \WC()->mailer()->get_emails();
+
+			if ( ! isset( $emails[ $email_id ] ) ) {
+				return new WP_REST_Response(
+					array(
+						'error'   => 'not_found',
+						'message' => __( 'Email not found', 'woonoow' ),
+					),
+					404
+				);
+			}
+
+			$email = $emails[ $email_id ];
+			
+			// Update email settings
+			$email->update_option( 'enabled', $enabled ? 'yes' : 'no' );
+
+			return new WP_REST_Response(
+				array(
+					'success' => true,
+					'enabled' => $enabled,
+					'message' => $enabled 
+						? __( 'Email enabled', 'woonoow' )
+						: __( 'Email disabled', 'woonoow' ),
+				),
+				200
+			);
+		} catch ( \Exception $e ) {
+			return new WP_REST_Response(
+				array(
+					'error'   => 'toggle_failed',
+					'message' => $e->getMessage(),
+				),
+				500
+			);
+		}
+	}
+}