Brandling Safari: LAN safari-zone creature catching on the HD-2D engine

- Authoritative 30 Hz server (ENet, SQLite): accounts, characters, wild AI, tall grass /
  water / wandering spawns, fishing, captures, follower chains, clock + weather, LAN beacon
- Client: title / join / character creator / play screens, prediction + reconciliation,
  interpolated players and parties, HD-2D UI (dialogue with Professor Henry, HUD, collection)
- Shared deterministic zone generator, movement, protocol, roster, appearance
- Paper-doll character art pipeline (PixelLab base walk + per-item animation edits)
- Brandling roster from the company list (logo colors, jev types), Blender safari props
- Headless test bot

server/Spawns.h

@@ -0,0 +1,38 @@
+#pragma once
+// Species selection for wild spawns (habitat, rarity, zone type weights and
+// time/weather conditions) and the weather Markov chain.
+
+#include "Protocol.h"
+#include "Rng.h"
+#include "Roster.h"
+
+#include <string>
+#include <vector>
+
+namespace bs {
+
+enum class SpawnHabitat { Land = 0, Water = 1 };
+
+inline bool isNight(float hour) { return hour < 5.5f || hour > 19.5f; }
+
+class SpawnTables {
+public:
+    // Rebuilds the cumulative tables when (night, weather) differs from the cached condition.
+    void update(const Roster& roster, const std::string& zoneId, float hour, Weather weather);
+    // Returns false when no species fits the habitat.
+    bool pick(Rng& rng, SpawnHabitat h, uint16_t& species) const;
+
+private:
+    struct Table {
+        std::vector<float> cumulative;
+        std::vector<uint16_t> ids;
+    };
+    Table tables_[2];
+    int key_ = -1;
+    const Roster* roster_ = nullptr;
+};
+
+// Next weather state; called every 3-8 real minutes.
+Weather nextWeather(Rng& rng, Weather current, float hour);
+
+}  // namespace bs