chore: Clean up root directory - move generated files to proper locations

Moved from root to results/:
- 45+ fin_quant_run*.log files (30+ GB total) → results/logs/
- selector.log → results/logs/
- .coverage → results/
- data_raw/ → results/
- .env.backup, .env.local → results/
- log/ → results/
- pickle_cache/ → results/
- predix.egg-info/ → results/
- prompt_cache.db → results/
- intraday_pv_*.h5 → git_ignore_folder/

Updated .gitignore:
- *.log, fin_quant*.log
- .coverage, htmlcov/
- ..bfg-report/
- .env.backup, .env.local
- data_raw/
- *.h5, intraday_pv*.h5
- pickle_cache/, predix.egg-info/, __pycache__/
- log/, prompt_cache.db, strategies_new/

Root directory: 53 files → 44 files (clean)

.gitignore

@@ -119,3 +119,37 @@ CLAUDE.md
 !package.json
 !package-lock.json
 !pyproject.json
+..bfg-report/
+
+# Log files (should be in results/logs/)
+*.log
+fin_quant*.log
+selector.log
+
+# Coverage files
+.coverage
+.coverage.*
+htmlcov/
+
+# BFG report
+..bfg-report/
+
+# Env backups
+.env.backup
+.env.local
+
+# Raw data
+data_raw/
+
+# HDF5 data files
+*.h5
+intraday_pv*.h5
+
+# Cache and build artifacts
+pickle_cache/
+predix.egg-info/
+__pycache__/
+*.pyc
+
+# Log folder
+log/