feat(api): add completion request cancellation and mermaid rendering

Add support for cancelling in-progress LLM completion requests via new /v1/completions/cancel endpoint with task tracking. Implement mermaid diagram rendering in the Milkdown editor with a new mermaidPlugin. Update copilotPlugin to properly abort requests with descriptive reasons. Refactor settings panel to handle system theme changes reactively. Add camera capture support for image uploads.
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2026-02-25 19:00:17 +08:00
parent e28125079c
commit 637456ee34
13 changed files with 2013 additions and 147 deletions
+1192 -2
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