feat(provider): 完成阶段E协议适配、国内预设与模型路由

frontend/public/provider-icons-LICENSE.txt

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+Lobe Icons — Copyright (c) 2023 LobeHub. MIT license; see LICENSE.
+Source: https://github.com/lobehub/lobe-icons
+Revision: 4aaf4ee1fb2678a7f989ea570f0f6ce14a9abf75
+Source directory: packages/static-svg/icons/
+Assets are bundled locally. Brand trademarks belong to their respective owners.
+File mapping (local: upstream):
+anthropic.svg: anthropic.svg
+baidu.svg: baidu-color.svg
+deepseek.svg: deepseek-color.svg
+hunyuan.svg: hunyuan-color.svg
+kimi.svg: kimi-color.svg
+minimax.svg: minimax-color.svg
+ollama.svg: ollama.svg
+openai.svg: openai.svg
+qwen.svg: qwen-color.svg
+siliconflow.svg: siliconcloud-color.svg
+stepfun.svg: stepfun-color.svg
+volcengine.svg: volcengine-color.svg
+zhipu.svg: zhipu-color.svg
+MIT License
+
+Copyright (c) 2023 LobeHub
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.