port(gas_price_service): bring optimizations from 0.40.4 for cumulative_pct_change to master

[rymnc]

Linked Issues/PRs

• backport(gas_price_service): performance improvements to estimate_gas_price #2638

Description

This pull request includes changes to the fuel-core service to refactor and improve the handling of gas price calculations. The most important changes involve moving the cumulative_percentage_change function to a more appropriate module and updating the relevant imports accordingly.

Refactoring and code organization:

• crates/fuel-core/src/service/adapters.rs: Removed the cumulative_percentage_change function and updated the import to use the function from the fuel_core_gas_price_service module. [1] [2]
• crates/fuel-gas-price-algorithm/src/lib.rs: Added a public re-export for the cumulative_percentage_change function.
• crates/services/gas_price_service/src/common.rs: Added a public re-export for the cumulative_percentage_change function from the fuel_gas_price_algorithm module.

Perf improvements

• Same as backport(gas_price_service): performance improvements to estimate_gas_price #2638, but improved ROUNDING_ERROR_COMPENSATION calc by comparing asm generated with -C opt-level=3

previous asm for ROUNDING_ERROR_COMPENSATION:

        addsd   xmm1, xmm2
        movsd   xmm0, qword ptr [rip + .LCPI0_5]
        cmpltsd xmm0, xmm2
        andpd   xmm1, xmm0
        andnpd  xmm0, xmm2
        orpd    xmm0, xmm1

new asm for ROUNDING_ERROR_COMPENSATION:

        cmpltsd xmm1, xmm2
        movsd   xmm0, qword ptr [rip + .LCPI0_5]
        andpd   xmm0, xmm1
        addsd   xmm0, xmm2

Checklist

• Breaking changes are clearly marked as such in the PR description and changelog
• New behavior is reflected in tests
• The specification matches the implemented behavior (link update PR if changes are needed)

Before requesting review

• I have reviewed the code myself
• I have created follow-up issues caused by this PR and linked them here