feat(testing): gun rack gauntlet + analysis reports

- fix(ModularBot): onBulletHitBot → onBulletHit (real hits were never tracked)
- feat(ModularBot): per-round gun stats dump to /tmp/gun_stats.jsonl
- feat(ModularBot): gun selection counter per round
- fix(tests): adversary paths _garage suffix removed from 7 test files
- feat(tests): test_gauntlet_5bots.nim — 10-round gauntlet vs all 5 adversaries
- feat(tests): analyze_gun_stats.nim — JSONL parser for gun performance tables
- docs: gun_rack_analysis.md — full per-gun performance report
- docs: gun_rack_summary.md — TL;DR verdict table (keep/drop/tune)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

test_decaygf_battles.nim

@@ -5,8 +5,8 @@ const
   modularBotDir = "/home/davide/Projects/SirRoboGarage/ModularBot_garage"
   samplesDir    = "/home/davide/Downloads/robocode-tankroyale/sample-bots-nim-linux-1.0.7"
   crazy         = samplesDir / "Crazy"
-  waveSurfer    = "/home/davide/Projects/SirRoboGarage/common_libs/test_framework/adversaries/WaveSurfer_garage"
-  randomMover   = "/home/davide/Projects/SirRoboGarage/common_libs/test_framework/adversaries/RandomMover_garage"
+  waveSurfer    = "/home/davide/Projects/SirRoboGarage/common_libs/test_framework/adversaries/WaveSurfer"
+  randomMover   = "/home/davide/Projects/SirRoboGarage/common_libs/test_framework/adversaries/RandomMover"
 
 const serverJar = "/home/davide/Projects/tank-royale/server/build/libs/robocode-tankroyale-server-0.35.5-all.jar"
 const runnerJar = "/home/davide/Projects/tank-royale/runner/examples/lib/robocode-tankroyale-runner.jar"