fix: pkg: the og tags did not have proper http schema - they should have https #4

README.md

@@ -151,6 +151,7 @@ services:
   app:
     environment:
       MAILER_DSN: smtp://mail:1025?verify_peer=0
+      TRUSTED_PROXIES: "0.0.0.0/0"
   mail:
     image: mailhog/mailhog:latest
     ports:
@@ -233,8 +234,13 @@ MERCURE_SUBSCRIBER_JWT="<generated by make mercure-jwt>"
 APP_PUBLIC_HOSTNAME=mineseeker.hu
 WEBAUTHN_RP_ID=mineseeker.hu
 WEBAUTHN_ORIGIN=https://mineseeker.hu
-```
 
+# OG Tags & Social Media Sharing (IMPORTANT for Docker deployments)
+# TRUSTED_PROXIES: IP address (or range) of your reverse proxy (Caddy/Nginx)
+# This ensures OG image tags use HTTPS URLs instead of HTTP
+TRUSTED_PROXIES="172.18.0.0/16"
+TRUSTED_HOSTS="mineseeker.hu,www.mineseeker.hu"
+```
 ### Production server: one-time setup
 
 The server needs Docker, Git, and a self-hosted `act_runner` registered against the Gitea repository. Bun and Composer run inside the multi-stage Dockerfile, so they are not needed on the server.
@@ -254,7 +260,7 @@ make mercure-jwt
 
 Copy the three printed values into the `PROD_ENV_FILE` secret.
 
-#### 5. First deploy
+#### 3. First deploy
 
 Trigger it by pushing the first tag:
 
@@ -265,7 +271,7 @@ git push origin v2026.01
 
 This writes `.env`, builds the Docker image, starts all services, runs migrations, and initialises the MinIO buckets automatically via `minio_init`.
 
-#### 6. Verify
+#### 4. Verify
 
 ```bash
 docker compose ps        # all services should be healthy/running