Ice & Fire Legacy

# Ice and Fire Legacy 0.8.4 - fly-over call and aerial fighting

Replace the previous Legacy JAR with iceandfire-legacy-0.8.4-mc1.7.10.jar.
Keep one Legacy version in mods. Update both client and server; use Minecraft
1.7.10 / Forge 10.13.4.1614 / Java 8.

CALL: Press V (rebindable), or use Call (10s Sit) in dragon equipment.
Your nearest loaded owned dragon within 128 blocks physically flies over,
lands beside you, plays a roar animation and sound once, then sits for 200
server ticks before switching to Follow. The timer starts after landing.
The call never sets the dragon's position and has no teleport fallback.
It periodically updates the landing spot if you move. It checks body clearance,
tries climbing over obstructions, and cancels with feedback if a safe approach
cannot be found. Move outdoors for difficult enclosed routes. Routes time out
after 60 seconds. Very young dragons or flight-disabled servers use ground
navigation instead. Manual commands/mounting interrupt the call. Calls in
progress are not resumed after reload; completed arrival sit timers persist.

AERIAL COMBAT: Adult/teen fire, ice and lightning dragons can take off against
distant/elevated opponents and cycle three attack patterns:
- Scorch/strafe: fly past the opponent while firing a timed stream of breath.
- Hover volley: reposition overhead and fire up to three charged breath blasts
  with windup and recovery between shots.
- Swoop/swipe: descend at the opponent, perform one close wing/claw strike with
  knockback, then pull up and reposition. The tackle pose is synchronized.
The patterns are adapted from the supplied modern mod's SCORCH_STREAM,
HOVER_BLAST and TACKLE modes, with new 1.7.10 steering and attack scheduling.
Volleys use this backport's charged breath damage/visuals, not modern fireball
projectile entities. Existing ground bite, grab, tail and wing attacks remain.
Aerial attacks respect hunger, flight/breath settings, sight, range and friendly
target exclusions. Rider controls, call requests and the arrival sit hold take
priority. Losing the opponent clears the aerial attack state.

The real rabbit-foot texture and all prior equipment fixes remain included.

Validation: fire/ice/lightning physical combat cycles, breath damage, multiple
charged blasts, exactly one swoop hit per pass, synchronized tackle flag,
movement bounds, owner protection, hunger and wall checks. Call checks cover
continuous flight, ground takeoff, moving owners, physical landing, exactly one
arrival roar, blocked-route cancellation, manual interruption and the full
200-tick hold. Existing motion/combat/state/model probes also pass.
No live graphical Minecraft playtest was performed. Local steering is not a
complete global 3D pathfinder; complex roofs and mazes can block an approach.