fix: env var overrides for campaign settings (hf_token, ollama_host etc)

backend/app/routers/models.py

@@ -2,6 +2,7 @@ import requests
 from fastapi import APIRouter, Query
 
 from .. import database as db
+from ..config import merge_campaign_settings_with_env
 
 router = APIRouter(prefix="/api/models", tags=["models"])
 
@@ -10,7 +11,7 @@ router = APIRouter(prefix="/api/models", tags=["models"])
 def list_ollama_models(campaign_id: str = Query("default")):
     """List models already pulled on the configured Ollama host, so the setup
     wizard can offer a dropdown instead of asking the user to type a tag blind."""
-    settings = db.get_campaign_settings(campaign_id)
+    settings = merge_campaign_settings_with_env(db.get_campaign_settings(campaign_id))
     host = settings.get("ollama_host", "http://host.docker.internal:11434")
     try:
         resp = requests.get(f"{host.rstrip('/')}/api/tags", timeout=5)