[WIP] flamenco, runtime: implement commission_rate_in_basis_points

[topointon-jump]

#8146

This PR is on top of #8160

• Implementation
• Unit tests
• Ledger (blocked on 4.0 release)
• Fuzzing

Don't merge before 4.0 is cut

[github-actions]

Performance Measurements ⏳

Suite	Baseline	New	Change
backtest mainnet-368528500-perf per slot	0.073634 s	0.072999 s	-0.862% ✅
backtest mainnet-368528500-perf snapshot load	NaN s	NaN s	NaN% ✅
backtest mainnet-368528500-perf total elapsed	73.634455 s	72.998738 s	-0.863% ✅
firedancer mem usage with mainnet.toml	1069.34 GiB	1069.34 GiB	0.000% ✅

[github-actions]

Performance Measurements ⏳

Suite	Baseline	New	Change
backtest mainnet-368528500-perf per slot	0.06213 s	0.062531 s	0.645% ✅
backtest mainnet-368528500-perf snapshot load	NaN s	NaN s	NaN% ✅
backtest mainnet-368528500-perf total elapsed	62.129711 s	62.530944 s	0.646% ✅
firedancer mem usage with mainnet.toml	1069.34 GiB	1058.31 GiB	-1.031% ✅

[github-actions]

Performance Measurements ⏳

Suite	Baseline	New	Change
backtest mainnet-368528500-perf per slot	0.070517 s	0.070519 s	0.003% ✅
backtest mainnet-368528500-perf snapshot load	NaN s	NaN s	NaN% ✅
backtest mainnet-368528500-perf total elapsed	70.516947 s	70.519164 s	0.003% ✅
firedancer mem usage with mainnet.toml	1069.34 GiB	1058.31 GiB	-1.031% ✅