docs: clean up documentation - remove obsolete architecture docs, simplify roadmap and vision, update READMEs

- Delete ARCHITECTURE_HAND_LOGGING_TOURNAMENT_IMPROVEMENTS.md (implemented)
- Delete ARCHITECTURE_SUPERSONIC_EVALUATOR.md (implemented)
- Delete REFERENCES.md (no longer needed)
- Simplify ROADMAP.md: remove Phases 4-7 (live server, advanced bots)
- Simplify VISION.md: focus on simulation testbed only
- Update README.md: dual evaluator architecture, fix broken links
- Update holdem_core/README.md: fix title, add Supersonic evaluator docs

docs/ROADMAP.md

@@ -1,6 +1,6 @@
 # Poker AI Testbed & Live Server Roadmap
 
-## Phase 2: Simulation Testbed ✅
+## Simulation Testbed
 
 **Remaining for mass simulation**
 - Parallel simulation engine (multi-threading)
@@ -9,25 +9,7 @@
 
 ---
 
-## Phase 4: Bot Framework
-**Goal:** All bot types with playability enhancement
-
-**Bot core implementations** (partially complete)
-- Logging of decision-making process
-
-**Advanced bots**
-- Nash equilibrium calculator for SNG endgame – port from Java
-- Statistical tracking bot – port from Java
-- GPU acceleration for mass rollouts
-- Hand-reading opponent modeling (possibly with GPU integration)
-- Flop playability precomputation & score integration
-- Basic reinforcement learning skeleton
-- Hybrid bot combining multiple approaches
-- Genetic algorithm for bot evolution (via configuration files)
-
----
-
-### Phase 5: "Unit Test" Framework
+### "Unit Test" Framework
 **Goal:** Bot behavior can be tested against predefined hands
 
 **Hand Replayer**
@@ -35,39 +17,4 @@
 - Action comparison to expected outcome
 - Selection of hands from different sources (books)
 - Action likelihoods (multiple replays)
-
----
-
-### Phase 6: Live Server Infrastructure
-**Goal:** Real-time bot deployment
-
-**Server core**
-- Network protocol design (TBD: WebSocket, JSON, MQ, etc.)
-- Actions (incl. early fold and table selection), events (incl. table switches and available tables)
-- Client registration and management
-- Game state synchronization
-- Action dispatch system
-- Event logging for analysis of problems
-
-**Client adapter system**
-- Client factory for different poker environments
-- Screen / protocol scraping adapters
-- Table selection logic
-- Configuration-driven game selection
-
----
-
-### Phase 7: Integration & Polish
-**Goal:** Production-ready system
-
-**Advanced features**
-- Real-time strategy adaptation
-- Multi-table coordination
-- Bankroll management
-- Risk adjustment based on results
-
-**Optimization and deployment**
-- Performance profiling and optimization
-- Error handling and recovery
-- Documentation and examples
-- Deployment scripts and configuration
+- GUI for test runs with chosen hand-sets and bots