### feat: füge Mail-Service-

config/docker/caddy/web-app/Caddyfile

@@ -3,7 +3,7 @@
 	metrics
 }
 
-:4000 {
+:80 {
 	root * /usr/share/caddy
 	log {
 		output stdout
@@ -17,14 +17,34 @@
 
 	encode gzip zstd
 
-	handle /api/* {
-		reverse_proxy api-gateway:8081
+	# Reverse Proxy: Plan-B leitet nur /api/mail an den Mail-Service weiter (kein API-Gateway nötig)
+	handle /api/mail/* {
+		reverse_proxy mail-service:8085
 	}
 
 	handle /health {
 		respond "healthy" 200
 	}
 
+	# Korrekte MIME für .wasm sicherstellen (Caddy erkennt es i. d. R. automatisch; hier explizit)
+	@wasm {
+		path *.wasm
+	}
+	header @wasm Content-Type "application/wasm"
+
+	# Caching-Strategie: Immutable Assets (hash-Dateien) lange cachen
+	@immutable {
+		path *.js *.css *.wasm *.png *.svg *.ico *.woff2 *.map
+	}
+	header @immutable Cache-Control "public, max-age=31536000, immutable"
+
+	# Keine Cache-Header für SPA-Einstieg und Laufzeitkonfig
+	@nocache {
+		path /index.html /config.json
+	}
+	header @nocache Cache-Control "no-store"
+
+	# Static file serving mit SPA-Fallback
 	handle {
 		try_files {path} /index.html
 		file_server

config/docker/caddy/web-app/Dockerfile

@@ -31,9 +31,9 @@ COPY config/docker/caddy/web-app/entrypoint.sh /entrypoint.sh
 COPY config/docker/caddy/web-app/config.json /usr/share/caddy/config.json.tmpl
 RUN chmod +x /entrypoint.sh
 
-# Copy Pre-built Static Assets from Host
-# NOTE: You must run `./gradlew :frontend:shells:meldestelle-portal:jsBrowserDistribution -Pproduction=true` locally first!
-COPY frontend/shells/meldestelle-portal/build/dist/js/productionExecutable/ /usr/share/caddy/
+# Copy Pre-built Static Assets from Host (WasmJs)
+# NOTE: You must run `./gradlew :frontend:shells:meldestelle-web:wasmJsBrowserDistribution -Pproduction=true` locally first!
+COPY frontend/shells/meldestelle-web/build/dist/wasmJs/productionExecutable/ /usr/share/caddy/
 # index.html wird als Template abgelegt; der Entrypoint erzeugt daraus zur Laufzeit die finale index.html
 RUN mv /usr/share/caddy/index.html /usr/share/caddy/index.html.tmpl
 
@@ -41,10 +41,10 @@ RUN mv /usr/share/caddy/index.html /usr/share/caddy/index.html.tmpl
 # Using the shared asset from existing config structure
 COPY config/docker/nginx/web-app/favicon.svg /usr/share/caddy/favicon.svg
 
-EXPOSE 4000
+EXPOSE 80
 
 HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
-    CMD wget --no-verbose --tries=1 --spider http://localhost:4000/health || exit 1
+    CMD wget --no-verbose --tries=1 --spider http://localhost/health || exit 1
 
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["caddy", "run", "--config", "/etc/caddy/Caddyfile", "--adapter", "caddyfile"]

config/docker/caddy/web-app/config.json

@@ -1,4 +1,5 @@
 {
   "apiBaseUrl": "${API_BASE_URL}",
+  "mailServiceUrl": "${MAIL_SERVICE_URL}",
   "keycloakUrl": "${KEYCLOAK_URL}"
 }

config/docker/caddy/web-app/entrypoint.sh

@@ -1,13 +1,13 @@
 #!/bin/sh
 set -e
 
-# Ersetze ${API_BASE_URL} und ${KEYCLOAK_URL} in index.html und config.json zur Container-Startzeit.
+# Ersetze ${API_BASE_URL}, ${MAIL_SERVICE_URL} und ${KEYCLOAK_URL} in index.html und config.json zur Container-Startzeit.
 # Caddy bekommt fertige, statische Dateien — kein Template-Parsing mehr nötig.
-envsubst '${API_BASE_URL} ${KEYCLOAK_URL}' \
+envsubst '${API_BASE_URL} ${MAIL_SERVICE_URL} ${KEYCLOAK_URL}' \
   < /usr/share/caddy/index.html.tmpl \
   > /usr/share/caddy/index.html
 
-envsubst '${API_BASE_URL} ${KEYCLOAK_URL}' \
+envsubst '${API_BASE_URL} ${MAIL_SERVICE_URL} ${KEYCLOAK_URL}' \
   < /usr/share/caddy/config.json.tmpl \
   > /usr/share/caddy/config.json