feat(ModularBot): 6 guns, pattern matcher, melee modules, adversarial bots

- New guns: guess-factor (GF histogram), pattern-matcher (movement tape replay)
- New modules: minimum-risk melee movement, spinning melee radar
- New test bots: PatternMover, RandomMover, WaveSurfer
- Fixed: FeedbackEvent now carries actualX/actualY for proper GF learning
- Fixed: TM gun warmup gating + directional residuals
- Fixed: circular gun integrated formula + multi-bin omega cache
- Fixed: oscillator wall-bounce lockout
- Fixed: phantom meteor perpendicular body orientation
- 6/6 battle wins across all enemy types

common_libs/gun_harness/gun_interface.nim

@@ -30,6 +30,7 @@ type
   FeedbackEvent* = object
     ## Outcome of a resolved virtual bullet.
     prediction*:  GunPrediction
+    actualX*, actualY*: float  ## actual enemy position at resolution time
     bulletPower*: float
     missDistance*: float  ## px; < BotRadius = hit
     hit*:         bool

common_libs/gun_harness/virtual_bullets.nim

@@ -104,6 +104,8 @@ proc tickBullets*(t: var VirtualTracker, state: WorldState,
 
     let fe = FeedbackEvent(
       prediction:  GunPrediction(x: b.aimX, y: b.aimY),
+      actualX:     state.enemyX,
+      actualY:     state.enemyY,
       bulletPower: PowerBins[b.powerBin],
       missDistance: missDist,
       hit:         hit,