- Add Next.js API rewrites to proxy /api and /uploads requests
- Update docker-compose.staging.yml to use relative API paths
- Set NEXT_PUBLIC_API_URL to empty for staging (use rewrites)
- Add BACKEND_URL env var for Next.js server-side proxying
- Update all files to use relative paths when API_URL is empty
This fixes the issue where the staging site (HTTPS) was trying to
load resources from HTTP backend, causing Mixed Content errors.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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