fix: AI generation Company.city error, missing publishing_company_id, and UX error display

- Fix AttributeError: Company.city -> Company.address_city in get_company_context
- Default publishing_company_id to first available company when not selected
- Replace alert() with inline error message for AI generation failures
- Return user-friendly error messages instead of internal exceptions

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

blueprints/admin/routes_social_publisher.py

@@ -141,6 +141,10 @@ def social_publisher_new():
             event_id = request.form.get('event_id', type=int)
             publishing_company_id = request.form.get('publishing_company_id', type=int)
 
+            # Default to first company if not selected
+            if not publishing_company_id and companies:
+                publishing_company_id = companies[0].id
+
             if not content:
                 flash('Treść posta jest wymagana.', 'danger')
                 return render_template('admin/social_publisher_form.html',
@@ -363,7 +367,7 @@ def social_publisher_generate():
         return jsonify({'success': True, 'content': content, 'model': model})
     except Exception as e:
         logger.error(f"AI generation failed: {e}")
-        return jsonify({'success': False, 'error': str(e)}), 500
+        return jsonify({'success': False, 'error': 'Nie udalo sie wygenerowac tresci. Sprobuj ponownie lub wpisz tresc recznie.'}), 500
 
 
 # ============================================================

services/social_publisher_service.py

@@ -420,7 +420,7 @@ class SocialPublisherService:
             return {
                 'company_name': company.name or '',
                 'category': company.category or '',
-                'city': company.city or 'Wejherowo',
+                'city': company.address_city or 'Wejherowo',
                 'description': company.description or company.short_description or '',
                 'website': company.website or '',
             }

templates/admin/social_publisher_form.html

@@ -281,6 +281,7 @@
                     Generuj AI
                 </button>
             </div>
+            <div id="ai-error-msg" style="display:none; padding: var(--spacing-sm) var(--spacing-md); margin-bottom: var(--spacing-md); border-radius: var(--radius); background: var(--error-bg, #fef2f2); color: var(--error, #dc2626); border: 1px solid var(--error, #dc2626); font-size: var(--font-size-sm);"></div>
 
             <!-- Tresc -->
             <div class="form-group">
@@ -362,6 +363,15 @@
 {% endblock %}
 
 {% block extra_js %}
+    function showAiError(msg) {
+        const el = document.getElementById('ai-error-msg');
+        el.textContent = msg;
+        el.style.display = 'block';
+    }
+    function hideAiError() {
+        document.getElementById('ai-error-msg').style.display = 'none';
+    }
+
     // AI generation
     document.getElementById('btn-generate-ai')?.addEventListener('click', async function() {
         const postType = document.getElementById('post_type').value;
@@ -407,11 +417,12 @@
                     document.getElementById('hashtags').value = data.hashtags;
                 }
                 updateContentCounter();
+                hideAiError();
             } else {
-                alert('Błąd generowania: ' + (data.error || 'Nieznany błąd'));
+                showAiError(data.error || 'Nie udalo sie wygenerowac tresci. Sprobuj ponownie.');
             }
         } catch (err) {
-            alert('Błąd połączenia: ' + err.message);
+            showAiError('Blad polaczenia z serwerem. Sprawdz polaczenie internetowe i sprobuj ponownie.');
         } finally {
             this.disabled = false;
             this.textContent = 'Generuj AI';