chore: clean up benchmarks

[jonathanpwang]

• Put all guest programs for benchmarks into a shared workspace so the
  local openvm imports are clearer.
• Switch all prove binaries to use the SdkVmConfig and parse it from
  openvm.toml
• Added a QoL function SdkVmConfig::from_toml -> AppConfig<SdkVmConfig>

[codspeed-hq]

CodSpeed WallTime Performance Report

Merging #1908 will not alter performance

_{Comparing chore/benchmark-guest-workspace (f9d33e5) with feat/new-execution (d572c40)}

⚠️ 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	1,117	322,700	17,672,408	-	-	-
fibonacci	(-97 [-4.4%]) 2,114	3,000,420	51,503,521	3,031	1,248,061	70,626,028
regex	(-558 [-7.4%]) 6,949	(-113672 [-1.4%]) 8,217,194	(-1761810 [-1.1%]) 163,669,874	9,032	3,326,557	234,117,316
ecrecover	(-14 [-1.2%]) 1,116	274,568	8,596,011	9,754	2,934,870	246,667,000
pairing	(+44 [+1.2%]) 3,677	3,725,930	93,105,105	4,419	2,010,399	138,830,725
fib_e2e	18,546	24,000,420	410,933,023	16,363	7,462,538	435,494,679
kitchen_sink	14,475	309,192	899,580,290	22,580	7,952,486	748,994,154

Commit: f9d33e5

Benchmark Workflow