Fix logging buffering and enable tracking when RTC config provided

- Add force=True to logging.basicConfig to override existing configuration
- Enable line buffering for stdout/stderr for real-time log output
- Modify init_rtc_processor to create processor when rtc_config exists
  even if RTC is disabled, allowing tracking of denoising data

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Alexander Soare <alexander.soare159@gmail.com>

examples/rtc/eval_dataset.py

@@ -21,6 +21,7 @@ Usage:
 import logging
 import os
 import random
+import sys
 from dataclasses import dataclass, field
 
 import matplotlib.pyplot as plt
@@ -40,9 +41,14 @@ from lerobot.utils.hub import HubMixin
 logging.basicConfig(
     level=logging.INFO,
     format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
+    force=True,
 )
 logger = logging.getLogger(__name__)
 
+# Ensure logs are flushed immediately
+sys.stdout.reconfigure(line_buffering=True)
+sys.stderr.reconfigure(line_buffering=True)
+
 
 def set_seed(seed: int):
     """Set random seed for reproducibility."""