refactor(configmanager): simplify SecureStore UI with unified info view

Consolidate SecureStoreLockedFormView and SecureStoreUnlockedFormView into
a single SecureStoreInfoFormView that displays store status and metadata.
Simplifies MainWindowViewModel by removing redundant state management.
Also adds design docs for RegexTransformer feature.

NEW/src/JdeScoping.Host/appsettings.json

@@ -145,9 +145,18 @@
     "RequiredKeys": [
       "RsaPrivateKey",
       "ExcelExport:CriteriaSheetPassword",
-      "ExcelExport:DataSheetPassword"
+      "ExcelExport:DataSheetPassword",
+      "JdeUser",
+      "JdePassword",
+      "GiwUser",
+      "GiwPassword",
+      "CmsUser",
+      "CmsPassword"
     ]
   },
+  "Pipelines": {
+    "ConfigPath": "Pipelines/pipelines.json"
+  },
   "WorkProcessor": {
     "Enabled": true,
     "WorkInterval": "00:00:05",