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-example/.env.example

@@ -1,4 +1,4 @@
-# Agencja AI — Environment Configuration (Dokploy)
+# Slavic Pulse — Environment Configuration (Dokploy)
 # Copy to .env before deploy if needed.
 # Never commit .env with real credentials to version control.
 
@@ -6,4 +6,4 @@
 # Port publikowany na hoście. W kontenerze nginx zawsze nasłuchuje na 80.
 # Mapowanie w docker-compose.yml: ${FRONTEND_PORT}:80
 # Dokploy/Traefik dodatkowo routuje po FQDN do wewnętrznego portu 80 kontenera.
-FRONTEND_PORT=8080
+FRONTEND_PORT=8082