feat(kol): expand variable schema and polish KOL UI

- Add length/range limits to KOL variable definitions: max_length and
  default_value for input/textarea, min_value/max_value/default_number
  for number. Backend validates and normalizes; frontend renders limit
  inputs in KolVariableConfig and applies limits at runtime in
  KolDynamicForm.
- Sort workspace cards by most recent prompt/package update, falling
  back to granted_at. Adds updated_at to KolWorkspaceCard.
- Polish TemplatesView, WorkspaceView, and KOL package management UI;
  route create/update/publish/archive/delete toasts through i18n and
  expand package form copy and status labels.
- Remove stale KnowledgeView.vue.patch.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/admin-web/src/components/kol/KolPromptEditor.vue

@@ -14,7 +14,11 @@ import type { KolCardConfig, KolVariableDefinition } from "@geo/shared-types";
 import { formatError } from "@/lib/errors";
 import { buildKolPlatformOptions } from "@/lib/kol-platform-options";
 import { mergeKolCardConfig, parseKolCardConfig } from "@/lib/kol-card-config";
-import { syncKolVariablesWithContent } from "@/lib/kol-placeholders";
+import {
+  getKolVariableInitialValue,
+  normalizeKolVariableDefinition,
+  syncKolVariablesWithContent,
+} from "@/lib/kol-placeholders";
 
 const props = defineProps<{
   promptId: number;
@@ -69,7 +73,9 @@ watch(
       metadataForm.allow_web_search = parsedCardConfig.allow_web_search;
       metadataForm.allow_user_knowledge = parsedCardConfig.allow_user_knowledge;
       content.value = detail.latest_prompt_content ?? "";
-      variables.value = detail.latest_schema_json?.variables ?? [];
+      variables.value = (detail.latest_schema_json?.variables ?? []).map((variable) =>
+        normalizeKolVariableDefinition(variable),
+      );
       cardConfig.value = { ...nextCardConfig };
     }
   },
@@ -178,7 +184,7 @@ function buildPreviewValues(nextVariables: KolVariableDefinition[]): Record<stri
 
   nextVariables.forEach((variable) => {
     const fieldKey = variable.key?.trim() || variable.id;
-    nextValues[fieldKey] = variable.type === "checkbox" ? [] : undefined;
+    nextValues[fieldKey] = getKolVariableInitialValue(variable);
   });
 
   return nextValues;