feat: add logging, marketplace, and admin enhancements

Database & Migrations:
- Add application_logs table migration for hybrid cloud logging
- Add companies table migration and restructure vendor relationships

Logging System:
- Implement hybrid logging system (database + file)
- Add log_service for centralized log management
- Create admin logs page with filtering and viewing capabilities
- Add init_log_settings.py script for log configuration
- Enhance core logging with database integration

Marketplace Integration:
- Add marketplace admin page with product management
- Create marketplace vendor page with product listings
- Implement marketplace.js for both admin and vendor interfaces
- Add marketplace integration documentation

Admin Enhancements:
- Add imports management page and functionality
- Create settings page for admin configuration
- Add vendor themes management page
- Enhance vendor detail and edit pages
- Improve code quality dashboard and violation details
- Add logs viewing and management
- Update icons guide and shared icon system

Architecture & Documentation:
- Document frontend structure and component architecture
- Document models structure and relationships
- Add vendor-in-token architecture documentation
- Add vendor RBAC (role-based access control) documentation
- Document marketplace integration patterns
- Update architecture patterns documentation

Infrastructure:
- Add platform static files structure (css, img, js)
- Move architecture_scan.py to proper models location
- Update model imports and registrations
- Enhance exception handling
- Update dependency injection patterns

UI/UX:
- Improve vendor edit interface
- Update admin user interface
- Enhance page templates documentation
- Add vendor marketplace interface

app/templates/admin/vendor-edit.html

@@ -267,6 +267,70 @@
             </div>
         </div>
 
+        <!-- Marketplace Integration -->
+        <div class="mb-8">
+            <h3 class="mb-4 text-lg font-semibold text-gray-700 dark:text-gray-200">
+                <span x-html="$icon('shopping-bag', 'inline w-5 h-5 mr-2')"></span>
+                Letzshop Marketplace URLs
+            </h3>
+            <p class="mb-4 text-sm text-gray-600 dark:text-gray-400">
+                Configure CSV feed URLs for automatic product imports from Letzshop marketplace
+            </p>
+
+            <div class="space-y-4">
+                <!-- French CSV URL -->
+                <label class="block text-sm">
+                    <span class="text-gray-700 dark:text-gray-400">
+                        French CSV URL
+                    </span>
+                    <input
+                        type="url"
+                        x-model="formData.letzshop_csv_url_fr"
+                        :disabled="saving"
+                        placeholder="https://letzshop.lu/feed/fr/products.csv"
+                        class="block w-full mt-1 text-sm dark:text-gray-300 dark:border-gray-600 dark:bg-gray-700 focus:border-purple-400 focus:outline-none focus:shadow-outline-purple dark:focus:shadow-outline-gray form-input"
+                    >
+                    <span class="text-xs text-gray-600 dark:text-gray-400 mt-1">
+                        URL for French language product feed
+                    </span>
+                </label>
+
+                <!-- English CSV URL -->
+                <label class="block text-sm">
+                    <span class="text-gray-700 dark:text-gray-400">
+                        English CSV URL
+                    </span>
+                    <input
+                        type="url"
+                        x-model="formData.letzshop_csv_url_en"
+                        :disabled="saving"
+                        placeholder="https://letzshop.lu/feed/en/products.csv"
+                        class="block w-full mt-1 text-sm dark:text-gray-300 dark:border-gray-600 dark:bg-gray-700 focus:border-purple-400 focus:outline-none focus:shadow-outline-purple dark:focus:shadow-outline-gray form-input"
+                    >
+                    <span class="text-xs text-gray-600 dark:text-gray-400 mt-1">
+                        URL for English language product feed
+                    </span>
+                </label>
+
+                <!-- German CSV URL -->
+                <label class="block text-sm">
+                    <span class="text-gray-700 dark:text-gray-400">
+                        German CSV URL
+                    </span>
+                    <input
+                        type="url"
+                        x-model="formData.letzshop_csv_url_de"
+                        :disabled="saving"
+                        placeholder="https://letzshop.lu/feed/de/products.csv"
+                        class="block w-full mt-1 text-sm dark:text-gray-300 dark:border-gray-600 dark:bg-gray-700 focus:border-purple-400 focus:outline-none focus:shadow-outline-purple dark:focus:shadow-outline-gray form-input"
+                    >
+                    <span class="text-xs text-gray-600 dark:text-gray-400 mt-1">
+                        URL for German language product feed
+                    </span>
+                </label>
+            </div>
+        </div>
+
         <!-- Save Button -->
         <div class="flex items-center justify-end gap-3 pt-6 border-t dark:border-gray-700">
             <a