chore: make SdkVmConfig::to_inner pub

[jonathanpwang]

SdkVmConfigInner is the more natural struct to work with, SdkVmConfig is just for serialization convenience.

[codspeed-hq]

CodSpeed WallTime Performance Report

Merging #1906 will not alter performance

_{Comparing chore/sdk-pub (4a133b7) with feat/new-execution (b788e45)}

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

Summary

✅ 24 untouched benchmarks

[github-actions]

group	app.proof_time_ms	app.cycles	app.cells_used	leaf.proof_time_ms	leaf.cycles	leaf.cells_used
verify_fibair	(-58 [-5.1%]) 1,076	322,701	17,672,420	-	-	-
fibonacci	(-42 [-1.9%]) 2,206	3,000,556	51,508,517	-	-	-
regex	(-14 [-0.2%]) 7,477	8,330,866	165,431,684	-	-	-
ecrecover	(+6 [+0.5%]) 1,167	274,568	8,596,011	-	-	-
pairing	(-21 [-0.6%]) 3,677	3,725,930	93,105,233	-	-	-

Commit: 4a133b7

Benchmark Workflow