- Add python3 and build-essential to builder stage for bcrypt/sharp compilation
- Change libasound2 to libasound2t64 for Debian bookworm compatibility
- Copy pre-built node_modules from builder instead of re-running npm install
- Prune dev dependencies in builder for smaller production image
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>