fix(desktop): 功能验证 6 项缺陷修复

- ISS-002: SkillInfoResponse 增加 source/path 字段，修复技能系统显示 0 个
- ISS-003: Sidebar 添加自动化/技能市场导航入口 + App 返回按钮
- ISS-004: SaaS fetchAvailableModels 添加 .catch() 防限流崩溃
- ISS-006: SaaSSettings/PricingPage 包裹 ErrorBoundary 防白屏
- ISS-008: listModels 加载 localStorage 自定义模型，修复仅显示 1 个模型
- configStore listSkills 映射添加 source/path 转发

desktop/src/store/configStore.ts

@@ -643,27 +643,26 @@ function createConfigClientFromKernel(client: KernelClient): ConfigStoreClient {
         const result = await client.listSkills();
         if (result?.skills) {
           return {
-            skills: result.skills.map((s) => ({
+            skills: result.skills.map((s: { id: string; name: string; description?: string; version: string; capabilities?: string[]; tags?: string[]; mode: string; enabled?: boolean; triggers?: string[]; category?: string; source?: string; path?: string }) => ({
               id: s.id,
               name: s.name,
               description: s.description || '',
               version: s.version,
-              // Use capabilities directly
               capabilities: s.capabilities || [],
               tags: s.tags || [],
               mode: s.mode,
-              // Map triggers to the expected format
               triggers: (s.triggers || []).map((t: string) => ({
                 type: 'keyword',
                 pattern: t,
               })),
-              // Create actions from capabilities for UI display
               actions: (s.capabilities || []).map((cap: string) => ({
                 type: cap,
                 params: undefined,
               })),
               enabled: s.enabled ?? true,
               category: s.category,
+              source: (s.source as 'builtin' | 'extra') || 'builtin',
+              path: s.path || undefined,
             })),
           };
         }
@@ -753,13 +752,27 @@ function createConfigClientFromKernel(client: KernelClient): ConfigStoreClient {
     listModels: async () => {
       try {
         const status = await client.status();
-        return {
-          models: status.defaultModel ? [{
-            id: status.defaultModel as string,
-            name: status.defaultModel as string,
-            provider: (status.defaultProvider as string) || 'default',
-          }] : [],
-        };
+        const defaultModel = status.defaultModel ? [{
+          id: status.defaultModel as string,
+          name: status.defaultModel as string,
+          provider: (status.defaultProvider as string) || 'default',
+        }] : [];
+        // Load custom models from localStorage
+        const customModels: Array<{ id: string; name: string; provider?: string }> = [];
+        try {
+          const raw = localStorage.getItem('zclaw-custom-models');
+          if (raw) {
+            const parsed = JSON.parse(raw);
+            if (Array.isArray(parsed)) {
+              for (const m of parsed) {
+                if (m.id && m.name) {
+                  customModels.push({ id: m.id, name: m.name, provider: m.provider || 'custom' });
+                }
+              }
+            }
+          }
+        } catch { /* ignore parse errors */ }
+        return { models: [...defaultModel, ...customModels] };
       } catch {
         return { models: [] };
       }