feat(simulator): virtual drone fleet data generator

One process per drone: seeded patrol kinematics, sensor streams at
realistic rates, detection events, hot current/ blocks sealed into
Hive-partitioned Parquet, and the compact UDP state broadcast with
peer RSSI derivation. Scales via docker compose --scale.

simulator/docker-compose.yml

@@ -0,0 +1,17 @@
+services:
+  drone:
+    build: .
+    # Scale the swarm: docker compose up --build --scale drone=${DRONE_COUNT:-5}
+    deploy:
+      replicas: ${DRONE_COUNT:-5}
+    environment:
+      FLIGHT_ID: ${FLIGHT_ID:-}
+      SEED: ${SEED:-42}
+      DURATION_S: ${DURATION_S:-120}
+      SPEEDUP: ${SPEEDUP:-1.0}
+      IMU_HZ: ${IMU_HZ:-50}
+      STATE_HZ: ${STATE_HZ:-5}
+      # Compose default bridge network: subnet-directed broadcast works
+      BROADCAST_ADDR: ${BROADCAST_ADDR:-255.255.255.255}
+    volumes:
+      - ./data:/data