- 新增 createChatCompletionsStream 函数，强制使用流式模式
- 非流式请求改为收集流式数据块后合并返回
- 解决 ECONNRESET 超时问题

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

This reverts commit 3733486.

Add `refresh-token` CLI command and `/token/refresh` API endpoint to manually
refresh Copilot token without restarting the container.

Usage: `docker compose exec copilot-api refresh-token`

Co-Authored-By: Claude (claude-opus-4.5) <noreply@anthropic.com>

feat: add manual token refresh command

When a request fails with 401 (token expired), automatically attempt to
refresh the Copilot token and retry the request. Includes a 1 hour
cooldown to prevent repeated refresh attempts if the error is caused by
other issues.

Co-Authored-By: Claude (claude-opus-4.5) <noreply@anthropic.com>

Extract model alias mapping into a dedicated module (model-normalization.ts)
to unify model name handling across the codebase. This enables Claude Code
to work with versioned model names (e.g. claude-opus-4-6[1M]) by mapping
them to their canonical Copilot model IDs. Also fixes a bug in
count-tokens-handler where the pre-normalization model name was used for
model lookup.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

feat: centralize model name normalization and add model aliases