fix: prevent TypeError when route.name is undefined (G4brym#124)

Add optional chaining to this.$route.name access in BucketPicker,
LeftSidebar, and RightSidebar components. Falls back to "files"
when route name is undefined, preventing the TypeError reported in G4brym#64.

Fixes G4brym#64

Co-authored-by: Debian <openclaw@openclaw.1.1.1.1>

Author: G4brym

packages/dashboard/src/components/main/BucketPicker.vue

@@ -37,7 +37,7 @@ export default defineComponent({
 			return this.$route.params.bucket;
 		},
 		selectedApp: function () {
-			return this.$route.name.split("-")[0];
+			return this.$route.name?.split("-")[0] || "files";
 		},
 	},
 	setup() {

packages/dashboard/src/components/main/LeftSidebar.vue

@@ -138,7 +138,7 @@ export default defineComponent({
 			return this.$route.params.bucket;
 		},
 		selectedApp: function () {
-			return this.$route.name.split("-")[0];
+			return this.$route.name?.split("-")[0] || "files";
 		},
 	},
 	async mounted() {

packages/dashboard/src/components/main/RightSidebar.vue

@@ -175,7 +175,7 @@ export default defineComponent({
 			return this.$route.params.bucket;
 		},
 		selectedApp: function () {
-			return this.$route.name.split("-")[0];
+			return this.$route.name?.split("-")[0] || "files";
 		},
 	},
 	mounted() {