## Summary
Relate to #17284
Migrate 10 OpenAI-compatible drivers (`gitee`, `gpustack`, `greenpt`,
`huaweicloud`, `huggingface`, `hunyuan`, `jiekouai`, `jina`, `lmstudio`,
`localai`) to use the unified response handlers
(`HandleNonStreamingResponse` / `HandleStreamingResponse`), following
the same pattern established by `deepseek` in #17634.
- Cut ~150 lines per driver (1398 lines removed, 155 added across 10
files).
- `greenpt` gains `ChatWithMessages` + `ChatStreamlyWithSender` required
by the unified handler infrastructure.
- All other drivers: pure deduplication of HTTP plumbing.
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Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthoric.com>