feat: add user management API with endpoint to retrieve current user information

apps/api/swagger.json

@@ -105,6 +105,34 @@
           }
         }
       }
+    },
+    "/api/user/me": {
+      "get": {
+        "tags": [
+          "User"
+        ],
+        "summary": "Get current user information",
+        "description": "Returns the information of the currently authenticated user.",
+        "operationId": "get_user_info",
+        "responses": {
+          "200": {
+            "description": "User information retrieved successfully",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/UserInfo"
+                }
+              }
+            }
+          },
+          "401": {
+            "description": "Unauthorized"
+          },
+          "500": {
+            "description": "Internal server error"
+          }
+        }
+      }
     }
   },
   "components": {
@@ -183,6 +211,25 @@
             "type": "string"
           }
         }
+      },
+      "UserInfo": {
+        "type": "object",
+        "description": "System health information",
+        "required": [
+          "id",
+          "username"
+        ],
+        "properties": {
+          "id": {
+            "type": "string",
+            "format": "uuid",
+            "description": "User ID"
+          },
+          "username": {
+            "type": "string",
+            "description": "Username"
+          }
+        }
       }
     }
   },
@@ -194,6 +241,10 @@
     {
       "name": "Authentication",
       "description": "Authentication API"
+    },
+    {
+      "name": "User",
+      "description": "User management API"
     }
   ]
 }