r1.5-server-side-event

What's Changed

• add chat files by @iceljc in #454
• Features/add conversation user by @iceljc in #456
• prevent send event if it is not conversation by @iceljc in #458
• Fix llm selection bug. by @hchen2020 in #459
• add default model by @iceljc in #460
• refine log in by @iceljc in #461
• Improve translation. by @hchen2020 in #462
• translation improvement. by @hchen2020 in #463
• Fix SSE response format. by @hchen2020 in #465
• Update TranslationService.cs by @yileicn in #467
• optimize translation prompt by @yileicn in #468
• Update TranslationService.cs by @yileicn in #469
• fix api controller json serilizer by @iceljc in #470
• optimize UpdateBreakPoint by @yileicn in #472

Full Changelog: r1.4-mutl-languages...r1.5-sse