f-String Logging in Multiple Locations

[CyberSecDef]

Problem

Several log statements use f-strings instead of parameterized logging:

• novelforge/routes/sessions.py lines 68, 70
• novelforge/__init__.py line 238

The rest of the codebase consistently uses logger.info("msg %s", var).

Why It Matters

• f-strings are eagerly formatted even if the log level is disabled
• Structured logging tools cannot group f-string messages by template
• Inconsistent with codebase conventions

Recommended Fix

logger.info("Deleted session file %s", session_file)
logger.error("Failed to delete session file: %s", e)
logger.warning("LLM log file not found at %s", log_path)