Discover sensor bundles from the SDK catalog, not a product list

The picker listed a hard-coded product list and treated any *.json beside sensor.json as a
configuration, so a folder of stray JSON could be offered as a sensor. Discovery now scans the
shipped root and a writable user root beside it, keeps the SDK's verdict for every entry
(listing rejected ones with their reason) and flags duplicate profile_ids instead of shadowing
them; verified by shared/tests and apps/studio/tests.

apps/studio/config/locales/zh_CN.json

@@ -179,7 +179,10 @@
     "export_none": "还没有导出过系数",
     "export_file": "文件 {name}（{size} KB，{time}）",
     "export_identity": "文件身份  类型 {sensor_type} · SN {sn} · 配置 {config}",
-    "thumb_placeholder": "产品型号"
+    "thumb_placeholder": "产品型号",
+    "family_unidentified": "未识别",
+    "catalog_profile": "配置档案 {profile_id} · 家族 {family} · 来源 {origin} · 状态 {state}",
+    "catalog_blocked": "无法启动：{reason}"
   },
   "panels": {
     "arrow": "2D 图像",