feat: add falah-souq marketplace plugin and native falah_wallet widget

- [falah-souq] new standalone plugin with [souq_marketplace] shortcode
  Fiverr-style service grid with Islamic luxury design (Emerald/Gold/Cream/Navy)
  Custom post type 'souq_service', category filter bar, card hover states
- [falah_wallet] replace iframe with native balance+transactions widget
  Balance card with loading state, send/receive action buttons
  Recent transactions list, login-gated with smooth reveal
  CSS tokens matching Islamic design system
- Rebuild falah-shortcodes.zip with updated wallet widget

wordpress-plugins/falah-souq/falah-souq.php

@@ -0,0 +1,45 @@
+<?php
+/**
+ * Plugin Name: Falah Souq
+ * Plugin URI:  https://falahos.my
+ * Description: Islamic marketplace shortcode — [souq_marketplace] renders a Fiverr-style service grid.
+ * Version:     1.0.0
+ * Author:      FalahOS
+ * Text Domain: falah-souq
+ */
+
+defined( 'ABSPATH' ) || exit;
+
+define( 'FALAH_SOUQ_VERSION', '1.0.0' );
+define( 'FALAH_SOUQ_DIR', plugin_dir_path( __FILE__ ) );
+define( 'FALAH_SOUQ_URL', plugin_dir_url( __FILE__ ) );
+
+require_once FALAH_SOUQ_DIR . 'includes/post-type.php';
+require_once FALAH_SOUQ_DIR . 'includes/shortcode.php';
+
+function falah_souq_enqueue( $hook ) {
+    if ( is_singular( 'souq_service' ) || has_shortcode( get_post()->post_content ?? '', 'souq_marketplace' ) ) {
+        wp_enqueue_style(
+            'falah-souq',
+            FALAH_SOUQ_URL . 'assets/falah-souq.css',
+            [],
+            FALAH_SOUQ_VERSION
+        );
+    }
+}
+add_action( 'wp_enqueue_scripts', 'falah_souq_enqueue' );
+
+function falah_souq_enqueue_always() {
+    wp_enqueue_style(
+        'falah-souq',
+        FALAH_SOUQ_URL . 'assets/falah-souq.css',
+        [],
+        FALAH_SOUQ_VERSION
+    );
+}
+add_action( 'wp_enqueue_scripts', 'falah_souq_enqueue_always' );
+
+register_activation_hook( __FILE__, function () {
+    falah_souq_register_post_type();
+    flush_rewrite_rules();
+} );