chore: clean up workspace for production

- Remove tracked generated artifacts: backtest logs (52), xlsx (43),
  experiment model pkls (7), ml_v3 training logs (11), result csv/txt
- Remove junk files: stray =1.4.5, training_output.log, *_analysis_output.txt,
  dead api.log, runtime bot.lock
- Remove throwaway scripts: analyze_performance, test_trajectory_bug, verify_settings
- Move reusable analysis scripts to scripts/analysis/
- Move status/report docs to docs/reports/
- Tighten .gitignore to prevent re-adding generated artifacts; ignore .kiro/

.gitignore

@@ -43,6 +43,7 @@ env/
 
 # Logs (ignore all content)
 logs/
+*.log
 
 # Data files (large)
 data/market_data/
@@ -54,8 +55,14 @@ models/*.pkl
 models/*.joblib
 models/*.h5
 
-# Backtest results (generated)
+# Backtest results (generated run artifacts)
 backtests/results/*.csv
+backtests/*_results/
+backtests/**/*.xlsx
+backtests/**/*.log
+backtests/ml_v3/training_log*.txt
+backtests/ml_v3/*.pkl
+backtests/*_results/*.pkl
 
 # Node modules (dashboard)
 web-dashboard/node_modules/
@@ -85,13 +92,21 @@ archive/
 bot.pid
 bot_output.log
 nul
+data/bot.lock
 data/bot_status.json
 data/signal_persistence.json
 data/model_metrics.json
 
+# Stray analysis output dumps
+*_analysis_output.txt
+training_output.log
+
 # Claude Code local settings
 .claude/
 backtests/.claude/
 
 # Screenshots
 *.png
+
+# Kiro CLI local settings
+.kiro/