Avoid print() when logging module exists

Description

Detects print() calls when the logging module is used in the codebase. CAPABILITY-GATED: This rule only fires when Python's logging module or a logging library (loguru, structlog) is detected. If the project only uses print(), that's an architectural choice - not a violation. When logging infrastructure exists, print() calls are outliers that should be reviewed: - They bypass structured logging - They don't respect log levels - They can't be easily filtered in production - They go to stdout, not stderr (may interfere with output parsing)

How to fix

Replace print() with the logging module.

```python
import logging
logger = logging.getLogger(__name__)

logger.info("User logged in: %s", user_id)
logger.debug("Processing file: %s", filename)
logger.error("Failed to connect: %s", error)
```

Learn more: https://shoulder.dev/learn/python/cwe-778/avoid-print-logging

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