fix: preserve existing plugin config on install

install.mjs

@@ -343,12 +343,21 @@ async function configure() {
 
     const plugins = getOpenclawConfig('plugins', {});
     plugins.entries = plugins.entries || {};
+
+    const existingEntry = plugins.entries[PLUGIN_NAME] || {};
+    const existingConfig = existingEntry.config || {};
+    const defaultConfig = { enabled: true, secretMgrPath, openclawProfilePath: openclawPath };
+
     plugins.entries[PLUGIN_NAME] = {
-      enabled: true,
-      config: { enabled: true, secretMgrPath, openclawProfilePath: openclawPath },
+      ...existingEntry,
+      enabled: existingEntry.enabled ?? true,
+      config: {
+        ...defaultConfig,
+        ...existingConfig,
+      },
     };
     setOpenclawConfig('plugins', plugins);
-    logOk('Plugin entry configured');
+    logOk('Plugin entry configured (preserved existing config, added missing defaults)');
   } catch (err) {
     logWarn(`Config failed: ${err.message}`);
   }