feat: scaffold FCES-native C++ project with libtorch integration

- CMakeLists.txt with libtorch, GoogleTest, GoogleBenchmark, OpenMP, pybind11
- Header files: config, controller, population, fitness, evolution, spectral, oscillation, telemetry, optimizer
- Source implementations: controller (full micro-MLP forward pass, mutation, crossover), fitness (Welford's algorithm), oscillation (DFT), spectral (SVD rank), optimizer (sign-SGD stub)
- Tests: controller, population, fitness, optimizer (Google Test)
- Benchmarks: evolve throughput, optimizer step (Google Benchmark)
- Examples: simple optimization, PyTorch/libtorch integration
- Python extension: pybind11 bindings with setup.py
- README with architecture diagram and build instructions

include/fces/evolution.hpp

@@ -0,0 +1,54 @@
+#pragma once
+
+/**
+ * @file evolution.hpp
+ * @brief EvolutionManager — orchestrates population dynamics.
+ *
+ * Port of: packages/fces/core/evolution_manager.py
+ */
+
+#include "population.hpp"
+
+namespace fces {
+
+/**
+ * EvolutionManager — controls the scheduling of evolutionary operations.
+ *
+ * Responsibilities:
+ * - Controller rotation (sticky selection with interval)
+ * - Population dynamics (auto-sizing, lockdown)
+ * - Triggering evolution at intervals
+ */
+class EvolutionManager {
+public:
+    explicit EvolutionManager(
+        Population& population,
+        int selection_interval = 50,
+        bool auto_population = false,
+        bool direct_construction = false
+    );
+
+    /// Get the currently active controller
+    FuzzyController& get_active_controller();
+
+    /// Update population dynamics based on current training state
+    void update_population_dynamics(
+        float loss_velocity,
+        float ema_loss,
+        int step_counter,
+        int total_steps
+    );
+
+    /// Steps the active controller has been in control
+    int steps_active = 0;
+
+    /// Selection interval (how long a controller stays active)
+    int selection_interval;
+
+private:
+    Population& population_;
+    bool auto_population_;
+    bool direct_construction_;
+};
+
+}  // namespace fces