feat(company): Child brands inherit NIP from parent for display and registry enrichment

Child companies (with parent_company_id) now show parent's NIP and can
fetch data from KRS/CEIDG using inherited NIP. Fixes Alter Energy showing
no NIP despite sharing one with Fiume Studio.

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

blueprints/api/routes_company.py

@@ -378,7 +378,19 @@ def api_enrich_company_registry(company_id):
         message_parts = []
         details = {}
 
+        # For child brands (parent_company_id set, no own NIP/KRS) — inherit from parent
+        effective_nip = company.nip
+        effective_krs = company.krs
+        if not effective_nip and not effective_krs and company.parent_company_id:
+            parent = db.query(Company).filter_by(id=company.parent_company_id).first()
+            if parent:
+                effective_nip = parent.nip
+                effective_krs = parent.krs
+
         # Strategy 1: Company has KRS — fetch directly
+        if effective_krs and not company.krs:
+            company.krs = effective_krs
+            db.flush()
         if company.krs:
             from blueprints.admin.routes_membership import _enrich_company_from_krs
             success = _enrich_company_from_krs(company, db)
@@ -403,9 +415,9 @@ def api_enrich_company_registry(company_id):
                 }), 404
 
         # Strategy 2: No KRS but has NIP — try Biała Lista to find KRS
-        elif company.nip:
+        elif effective_nip:
             krs_service = krs_api_service.KRSApiService()
-            biala_lista_result = krs_service.search_by_nip(company.nip)
+            biala_lista_result = krs_service.search_by_nip(effective_nip)
 
             if biala_lista_result and biala_lista_result.get('krs'):
                 # Found KRS via Biała Lista — save it and enrich
@@ -433,7 +445,7 @@ def api_enrich_company_registry(company_id):
                     message_parts.append(f'znaleziono KRS: {company.krs} (dane KRS niedostępne)')
             else:
                 # No KRS found — try CEIDG (likely JDG)
-                ceidg_data = fetch_ceidg_by_nip(company.nip)
+                ceidg_data = fetch_ceidg_by_nip(effective_nip)
                 if ceidg_data:
                     source = 'CEIDG'
                     updated_fields = []
@@ -481,7 +493,7 @@ def api_enrich_company_registry(company_id):
         else:
             return jsonify({
                 'success': False,
-                'error': 'Firma nie ma numeru NIP ani KRS — nie można pobrać danych z rejestrów'
+                'error': 'Firma nie ma numeru NIP ani KRS (również w firmie nadrzędnej) — nie można pobrać danych z rejestrów'
             }), 400
 
         db.commit()

blueprints/public/routes.py

@@ -257,9 +257,17 @@ def company_detail(company_id):
                     for m in company_managers:
                         _ = m.name, m.email  # force-load before session close
 
+        # For child brands — inherit NIP from parent for display/enrichment
+        effective_nip = company.nip
+        if not effective_nip and company.parent_company_id:
+            parent = db.query(Company).filter_by(id=company.parent_company_id).first()
+            if parent:
+                effective_nip = parent.nip
+
         return render_template('company_detail.html',
             company=company,
             company_id=company.id,  # For analytics conversion tracking
+            effective_nip=effective_nip,
             maturity_data=maturity_data,
             website_analysis=website_analysis,
             quality_data=quality_data,

templates/company_detail.html

@@ -660,7 +660,7 @@
             id="registryEnrichBtn"
             class="registry-enrich-btn"
             data-company-id="{{ company.id }}"
-            data-nip="{{ company.nip or '' }}"
+            data-nip="{{ effective_nip or company.nip or '' }}"
             data-krs="{{ company.krs or '' }}"
         >
             <span class="spinner"></span>
@@ -1720,7 +1720,8 @@
         </div>
 
         <!-- NIP Card -->
-        {% if company.nip %}
+        {% set display_nip = effective_nip or company.nip %}
+        {% if display_nip %}
         <div style="background: var(--background); border-radius: var(--radius-lg); padding: var(--spacing-lg); border: 2px solid #3b82f6;">
             <div style="display: flex; align-items: center; gap: var(--spacing-md);">
                 <div style="width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: #3b82f6; color: white;">
@@ -1730,11 +1731,15 @@
                 </div>
                 <div>
                     <div style="font-size: var(--font-size-sm); color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.05em;">NIP</div>
-                    <div style="font-size: var(--font-size-xl); font-weight: 700; color: #3b82f6; font-family: monospace;">{{ company.nip[:3] }}-{{ company.nip[3:6] }}-{{ company.nip[6:8] }}-{{ company.nip[8:] }}</div>
+                    <div style="font-size: var(--font-size-xl); font-weight: 700; color: #3b82f6; font-family: monospace;">{{ display_nip[:3] }}-{{ display_nip[3:6] }}-{{ display_nip[6:8] }}-{{ display_nip[8:] }}</div>
                 </div>
             </div>
             <div style="font-size: var(--font-size-sm); color: var(--text-secondary); padding-left: 60px; margin-top: var(--spacing-sm);">
+                {% if not company.nip and company.parent_company_id %}
+                NIP firmy nadrzędnej
+                {% else %}
                 Źródło: <strong style="color: #10b981;">Rejestr KRS</strong>
+                {% endif %}
             </div>
         </div>
         {% endif %}