Add Regolo provider: apertus-70b, qwen3.5-122b (thinking off), qwen-image + Apertus fallback chain

start.sh

@@ -37,6 +37,11 @@ if [ ! -f "$MASTER_KEY_FILE" ]; then
     python3 -c "import secrets; print('sk-' + secrets.token_urlsafe(32))" > "$MASTER_KEY_FILE"
 fi
 export LITELLM_MASTER_KEY=$(cat "$MASTER_KEY_FILE")
+# Regolo API key (member-suggested provider, 2026-10-16): stored in /app/data by the operator
+# via the Cloudron file manager — kept out of app env config and git.
+if [ -f "/app/data/regolo_key.txt" ]; then
+  export REGOLO_API_KEY=$(cat /app/data/regolo_key.txt | tr -d '[:space:]')
+fi
 
 # Generate a salt key if not already in /app/data
 SALT_KEY_FILE="/app/data/.salt_key"