The health check was failing when MySQL passwords contained special
characters like # because it was sourcing .env as a bash script,
where # is treated as a comment.
Solution: Remove unnecessary .env sourcing and use environment variables
directly from the db container, which Docker Compose has already correctly
parsed from .env.
This fixes the "Impossible de se connecter à MySQL" error when passwords
contain #, $, !, or other special characters.
Benefits:
- Works with any special characters in passwords
- Simpler code (removed 4 lines)
- More reliable (uses container's environment directly)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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