fix: hardcode Traefik port labels (Gotcha 6 - vars not expanded in labels)

Coolify does not expand ${VAR} in label values. All loadbalancer port
labels must use hardcoded values:
- trilium:   ${TRILIUM_HTTP_PORT}  → 8080
- adguard:   ${ADGUARD_HTTP_PORT}  → 80
- authentik: ${AUTHENTIK_HTTP_PORT} → 9000
- gitea:     ${GITEA_HTTP_PORT}    → 3000
- wireguard: ${WG_UI_PORT}         → 51821

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

trilium/docker-compose.yml

@@ -13,13 +13,13 @@ services:
       - /opt/trilium/data:/home/node/trilium-data:Z
 
     expose:
-      - "${TRILIUM_HTTP_PORT}"
+      - "8080"
 
     networks:
       - proxy
 
     labels:
-      traefik.http.services.trilium.loadbalancer.server.port: "${TRILIUM_HTTP_PORT}"
+      traefik.http.services.trilium.loadbalancer.server.port: "8080"
 
       traefik.http.middlewares.trilium-sec.headers.stsSeconds: "31536000"
       traefik.http.middlewares.trilium-sec.headers.stsIncludeSubdomains: "true"