Add asset management migration

- UpdateGameAssetFields migration for new columns
- Added Description, IsRequired, UploadedAt to GameAssets
- Fixed nullable LocalPath and FileSha256

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

RR3CommunityServer/obj/RR3CommunityServer.csproj.nuget.dgspec.json

@@ -51,6 +51,14 @@
         "net8.0": {
           "targetAlias": "net8.0",
           "dependencies": {
+            "BCrypt.Net-Next": {
+              "target": "Package",
+              "version": "[4.0.3, )"
+            },
+            "Microsoft.AspNetCore.Authentication.JwtBearer": {
+              "target": "Package",
+              "version": "[8.0.11, )"
+            },
             "Microsoft.AspNetCore.OpenApi": {
               "target": "Package",
               "version": "[8.0.24, )"
@@ -76,6 +84,10 @@
             "Swashbuckle.AspNetCore": {
               "target": "Package",
               "version": "[6.6.2, )"
+            },
+            "System.IdentityModel.Tokens.Jwt": {
+              "target": "Package",
+              "version": "[8.2.1, )"
             }
           },
           "imports": [