Fixed 500 Internal Server Error in search API by correcting the FTS5
full-text search query join. The previous query incorrectly joined
fts.rowid directly to repositories.id, but FTS rowid corresponds to
the readmes table. Now properly joins through readmes table first.
Also enhanced error logging with detailed error messages in development
mode for easier debugging.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
