Init Slavic Pulse frontend for slavic-pulse.com domain.

Adapt branding, SEO meta tags, assets, Docker dev on port 8082, and Dokploy
example pointing to site-slavic-pulse-com Gitea repository.

Co-authored-by: Cursor <cursoragent@cursor.com>

docker-compose.yml

@@ -1,4 +1,4 @@
-# Agencja AI — lokalny development (build z Dockerfile)
+# Slavic Pulse — lokalny development (build z Dockerfile)
 # Port hosta: FRONTEND_PORT z pliku .env (domyślnie 8080) → nginx w kontenerze na porcie 80
 
 services:
@@ -6,7 +6,7 @@ services:
     build:
       context: .
       dockerfile: Dockerfile
-    container_name: agencja-ai-frontend
+    container_name: slavic-pulse-com-frontend
     restart: unless-stopped
     ports:
       - "${FRONTEND_PORT:-8080}:80"