feat: refactor AwsClaude to Aws to support both llama3 and claude

[WqyJh]

我已确认该 PR 已自测通过，相关截图如下：

注：想要看到截图上测试不同模型的效果，需要先合并 #1600

[codecov]

Codecov Report

Attention: Patch coverage is 3.52941% with 246 lines in your changes missing coverage. Please review.

Project coverage is 1.22%. Comparing base (273be55) to head (a02a50d).

Files	Patch %	Lines
relay/adaptor/aws/llama3/main.go	2.96%	130 Missing and 1 partial ⚠️
relay/adaptor/aws/adaptor.go	0.00%	22 Missing ⚠️
relay/billing/ratio/model.go	0.00%	20 Missing ⚠️
relay/adaptor/aws/utils/adaptor.go	0.00%	16 Missing ⚠️
relay/adaptor/aws/claude/adapter.go	0.00%	13 Missing ⚠️
relay/adaptor/aws/llama3/adapter.go	0.00%	13 Missing ⚠️
relay/adaptor/aws/claude/main.go	0.00%	12 Missing ⚠️
relay/adaptor/aws/registry.go	35.71%	9 Missing ⚠️
relay/adaptor/aws/utils/utils.go	0.00%	6 Missing ⚠️
relay/controller/audio.go	0.00%	1 Missing ⚠️
... and 3 more

Additional details and impacted files

@@           Coverage Diff            @@
##            main   #1601      +/-   ##
========================================
+ Coverage   1.09%   1.22%   +0.12%     
========================================
  Files        130     136       +6     
  Lines       9698    9899     +201     
========================================
+ Hits         106     121      +15     
- Misses      9578    9764     +186     
  Partials      14      14              

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[songquanpeng]

thx