perf(renderer3d): InstantiatePlane collapses identical plane primitiv… #1321

Job	Run time
Cargo Deny Check	47s
Preflight (Ubuntu Stable)	2m 35s
Android Build Pipeline	1s
Rust ${{ matrix.rust }} on ${{ matrix.os }}	1s
Clean Room Regeneration	1s
TS SDK Native on ${{ matrix.os }}	1s
TS SDK Wasm Build	1s
Sandbox Recovery Smoke	1s
Integration Build Check	1s
Kotlin SDK Test	1s
Codegen Drift Check	1s
CI Success	3s
Lua SDK Tests	1s
Native Release Artifact on ${{ matrix.os }}	1s
C++ SDK Tests on ${{ matrix.os }}	1s
iOS Build Pipeline	1s
Python SDK on ${{ matrix.os }}	1s
.NET SDK on ${{ matrix.os }}	1s
C SDK Tests on ${{ matrix.os }}	1s
Swift SDK Tests	1s
Go SDK Tests	1s
	3m 43s

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