Fix major performance regression introduced in 1.1.0. The near-sail path drew the entire swarm as full solar-sail mesh instances every frame, so frame cost grew linearly with swarm size — large swarms dropped from 60 to 30 FPS. Near sails are now gated: the pass runs only when the camera is actually within 2500 units of an active sail orbit, which in practice is almost never.
New config option Rendering / NearSails: Auto (default, gated), Off (never draw near sails), Always (old 1.1.0 behaviour).
Replaced per-frame FieldInfo.GetValue reflection with Harmony FieldRef accessors — no more boxing of sizeInMat every frame.
Cache shader property IDs via Shader.PropertyToID instead of re-hashing name strings on every SetBuffer/SetVector.
Release GPU buffers on plugin unload instead of leaking them across save reloads.
The identity buffer is no longer padded to a 65536 minimum, and is not allocated at all while the near pass is gated off.
1.1.0
Fix near solar sails (within 2.5 km) as well: DysonSwarm.DrawModel now draws all sails with a plain instanced call and an identity _NearIdBuffer, bypassing the append-buffer counter / CopyCount / indirect-args path that is unreliable on D3DMetal.
1.0.0
Initial release: far solar sails drawn as chunked indexed triangles (fixes invisible swarm on CrossOver/D3DMetal).
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