Add initial implementation of API, database, and user management components.

MikrocopApi/MikrocopApi.http

@@ -0,0 +1,75 @@
+@MikrocopApi_HostAddress = http://localhost:5018
+@AccessToken = paste-jwt-here
+@UserId = 00000000-0000-0000-0000-000000000000
+
+POST {{MikrocopApi_HostAddress}}/api/auth/register
+Content-Type: application/json
+
+{
+  "userName": "john.doe",
+  "fullName": "John Doe",
+  "email": "john.doe@example.com",
+  "mobileNumber": "+15551234567",
+  "language": "en",
+  "culture": "en-US",
+  "password": "StrongPass123"
+}
+
+###
+POST {{MikrocopApi_HostAddress}}/api/auth/login
+Content-Type: application/json
+
+{
+  "userName": "john.doe",
+  "password": "StrongPass123"
+}
+
+###
+POST {{MikrocopApi_HostAddress}}/api/users
+Authorization: Bearer {{AccessToken}}
+Content-Type: application/json
+
+{
+  "userName": "jane.doe",
+  "fullName": "Jane Doe",
+  "email": "jane.doe@example.com",
+  "mobileNumber": "+15550000001",
+  "language": "en",
+  "culture": "en-US",
+  "password": "StrongPass123"
+}
+
+###
+GET {{MikrocopApi_HostAddress}}/api/users/{{UserId}}
+Authorization: Bearer {{AccessToken}}
+Accept: application/json
+
+###
+PUT {{MikrocopApi_HostAddress}}/api/users/{{UserId}}
+Authorization: Bearer {{AccessToken}}
+Content-Type: application/json
+
+{
+  "userName": "john.doe",
+  "fullName": "Johnathan Doe",
+  "email": "john.doe@example.com",
+  "mobileNumber": "+15550000002",
+  "language": "en",
+  "culture": "en-US",
+  "password": "AnotherStrongPass123"
+}
+
+###
+POST {{MikrocopApi_HostAddress}}/api/users/{{UserId}}/validate-password
+Authorization: Bearer {{AccessToken}}
+Content-Type: application/json
+
+{
+  "password": "AnotherStrongPass123"
+}
+
+###
+DELETE {{MikrocopApi_HostAddress}}/api/users/{{UserId}}
+Authorization: Bearer {{AccessToken}}
+
+###