Add HTTP client config, update settings, and add package

- Added HTTP client defaults configuration in Program.cs.
- Adjusted OpenAPI configuration order in Program.cs.
- Changed MaxTokensPerParagraph in AppSettings.cs to 1000.
- Added Microsoft.Extensions.Http.Resilience package in SqlDatabaseVectorSearch.csproj.
- Reordered and added ModelId properties in appsettings.json.

SqlDatabaseVectorSearch/appsettings.json

@@ -6,14 +6,14 @@
         "ChatCompletion": {
             "Endpoint": "",
             "Deployment": "",
-            "ApiKey": "",
-            "ModelId": "" // o1, gpt-4o, gpt-4, gpt-3.5 
+            "ModelId": "", // o1, gpt-4o, gpt-4, gpt-3.5 
+            "ApiKey": ""
         },
         "Embedding": {
             "Endpoint": "",
             "Deployment": "",
+            "ModelId": "", // text-embedding-3-small, text-embedding-3-large, text-embedding-ada-002
             "ApiKey": "",
-            "ModelId": "",
             // Set this value only if you're using a model that allows to specify the dimensions of the embeddings
             // (e.g. text-embedding-3-small or text-embedding-3-large). Currently, a maximum value of 1998 is supported.
             "Dimensions": null