feat: Supersonic evaluator, Cactus Kev hash, repo split cleanup

Evaluator overhaul:
- Add Supersonic LUT trie evaluator (32M-entry, O(n) hand evaluation)
- Add Cactus Kev perfect-hash 5-card evaluator (prime-product hashing)
- 3-tier evaluation priority: Supersonic → Cactus Kev → Algorithmic
- DashMap-cached 7-card evaluation for lock-free concurrent access
- Rewrite JumpTable around CactusKevEvaluator + DashMap cache

Bot framework:
- Add StrategyBot adapter (Strategy trait → HoldemPlayer)
- Add register_bot_type() for plugin-style bot registration
- Add strategy module with modular composable strategies

Repository split:
- Remove holdem_bots from workspace (moved to private super_marvin repo)
- Remove holdem_bots dependency from holdem_sim
- Update cash_game.toml to use built-in bots only
- Clean up .gitignore (remove stale holdem_bots exclusion)
- Delete plans/ directory (internal planning artifacts)

Documentation:
- Add ARCHITECTURE_SUPERSONIC_EVALUATOR.md
- Add REFERENCES.md
- Update ROADMAP.md and VISION.md
- Remove outdated docs (ACHIEVEMENTS, RAKE, TOURNAMENT_RAKE, meerkat-alignment)

holdem_core/examples/configs/cash_game.toml

@@ -1,26 +1,23 @@
+# Cash Game — 10-max NL Hold'em
+#
+# Deep-stack ring game with 10 seats using built-in bots.
+# Advanced bot strategies (big_stack_bot, short_stack_bot) are available
+# in the super_marvin repository.
+#
+# Run with:
+#   cargo run -p holdem_sim -- holdem_core/examples/configs/cash_game.toml
+
 [game]
 game_type = "Cash"
 num_seats = 10
+num_hands = 1000
+starting_chips = 1500
 small_blind = 10
 big_blind = 20
 ante = 0
-starting_chips = 1500
-num_hands = 10000
-
-# Rake configuration (optional, defaults to no rake).
-# rake_percentage = 0.05    # 5% rake
-# rake_cap = 50             # Max 50 chips rake per pot
-
-# Bankroll management (optional, defaults to disabled).
-# reset_bankroll_each_hand = false
-# bankroll_refill_threshold = 1000  # Refill when stack <= 1000
-
-# Auto-rebuy: when enabled, players whose stack drops below 25% of the
-# starting_chips are automatically topped back up to starting_chips.
-# Configure the threshold via rebuy_threshold_percentage (default: 25).
-# max_rebuys limits how many times a player can rebuy (0 = unlimited).
 auto_rebuy = true
-max_rebuys = 0  # 0 = unlimited rebuys
+rebuy_threshold_percentage = 25
+max_rebuys = 0          # 0 = unlimited
 
 # Randomize seat assignments before each hand (optional, defaults to false).
 randomize_seats = true
@@ -29,14 +26,14 @@ randomize_seats = true
 type = "no_limit"
 min_raise = 20
 
-[[game.bots]]
-bot_type = "flock_bot"
-name = "FlockBot-1"
-
 [[game.bots]]
 bot_type = "chump_bot"
 name = "ChumpBot-1"
 
+[[game.bots]]
+bot_type = "flock_bot"
+name = "FlockBot-1"
+
 [[game.bots]]
 bot_type = "call_bot"
 name = "CallBot-1"