llama: fix bigctx double-profile conflict (llama_server name collision)

llama

@@ -110,8 +110,13 @@ stop_running() {
 
 build_profiles_flag() {
     local model="$1" bigctx="$2" webui="$3"
-    local profiles=("$model")
+    local profiles=()
-    [[ "$bigctx" == "1" ]] && profiles+=("${model}-bigctx")
+    # bigctx is a replacement for the base profile, not an addition
+    if [[ "$bigctx" == "1" ]]; then
+        profiles+=("${model}-bigctx")
+    else
+        profiles+=("$model")
+    fi
     [[ "$webui" == "1" ]] && profiles+=("webui")
     # docker compose --profile a --profile b
     local flags=""