refactor(quickadapter): harmonize log and error messages across codebase

refactor(quickadapter): harmonize log and error messages across codebase

Standardize error and log messages for consistency and clarity:

- Standardize 29 ValueError messages with 'Invalid {param} value {value}' format
- Harmonize 35 warning messages with fallback defaults ('using default'/'using uniform')
- Replace {trade.pair} with {pair} in 33 log messages for consistent context
- Ensure all 7 exception handlers use exc_info=True for complete stack traces
- Normalize punctuation and capitalization in validation messages

This improves debugging experience and maintains uniform message patterns
throughout the QuickAdapter, Utils, and ExtremaWeightingTransformer modules.