v3.6.1

What's Changed

• feat:Minor formatting adjustments in JsonSerializerContext.g.cs for readability by @HavenDV in #68

• feat:Add file search classes, enums, and OpenAPI enhancements in OpenAI namespace by @HavenDV in #70

• feat:Update OpenAPI specification to rename query parameter include to include[] by @HavenDV in #71

• feat:Add Initialized method for HttpClient customization in client classes by @HavenDV in #72

• feat:Introduce UnixTimestampJsonConverter for DateTimeOffset handling by @HavenDV in #73

• feat:Add default parameter values and update JSON serialization in client methods by @HavenDV in #74

• fix: Added Assistants.CreateRunAsStream. Fixed AssistantsWithVision.

• docs: Added new examples.

• fix: Changed Files.DownloadFile return type to byte[].

• fix: Fixed MessageObject required properties exception.

• feat: Added OpenAI-Beta: assistants=v2 header.

• feat: Added AsUserMessage(this byte[] bytes, string mimeType) extension to easy use vision.

• feat: Added Image.Bytes auto-property to get Base64 json as byte array.

• feat: Make SourceGenerationContext public.

Full Changelog: v3.5.1...v3.6.1