Dual-signature export v4: dropped pre_lower_decomp/torch_tfl.decomps from eager trace path (was baking in INT32/INT64 mixed-type CONCATENATION ops that TFLite rejects at compile time). Runtime verified: classifier path returns 4 logits per prompt; same values as single-sig.

model.litertlm

@@ -1,3 +1,3 @@
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