fix(update): preserve local model and effort

scripts/lib/manifest.sh

@@ -84,7 +84,21 @@ sync_managed_destination() {
       new_hash=$(sha256_of_file "$source_file")
     fi
     if [ "$relative" = config.toml ] && [ -f "$target" ]; then
-      local plugin_tables
+      local plugin_tables local_settings setting_name
+      local_settings=$(awk '
+        /^[ \t]*\[/ { exit }
+        /^[ \t]*(model|reasoning_effort)[ \t]*=/ { print }
+      ' "$target")
+      if [ -n "$local_settings" ]; then
+        while IFS= read -r setting; do
+          setting_name=${setting%%=*}
+          setting_name=${setting_name//[[:space:]]/}
+          content=$(printf '%s\n' "$content" | sed "/^[[:space:]]*$setting_name[[:space:]]*=/d")
+        done <<< "$local_settings"
+        content="$content"$'\n'"$local_settings"$'\n'
+        needs_sub=true
+        new_hash=$(sha256_of_string "$content")
+      fi
       plugin_tables=$(awk '
         /^[ \t]*\[/ { preserve = ($0 ~ /^[ \t]*\[(plugins|marketplaces)(\.|\])/) }
         preserve { print }