Add account creation endpoint and dynamic REST client environment config

.vscode/settings.json

@@ -3,5 +3,20 @@
   "terminal.integrated.enablePersistentSessions": true,
   "terminal.integrated.persistentSessionReviveProcess": "onExitAndWindowClose",
   "terminal.integrated.enableMultiLinePasteWarning": "auto",
-  "terminal.integrated.splitCwd": "workspaceRoot"
+  "terminal.integrated.splitCwd": "workspaceRoot",
+  "rest-client.environmentVariables": {
+    "$shared": {
+      "version": "v1"
+    },
+    "development": {
+      "host": "localhost",
+      "port": "4321",
+      "baseUrl": "http://localhost:4321/api"
+    },
+    "production": {
+      "host": "finance-app-production.example.com",
+      "port": "443",
+      "baseUrl": "https://finance-app-production.example.com/api"
+    }
+  }
 }