Swich interpreter stack from H256 to U256

[sorpaas]

No description provided.

[Copilot]

Pull Request Overview

This pull request updates the interpreter stack from using H256 to using U256 and adjusts related conversions and operations throughout the codebase. Key changes include:

• Replacing H256 with U256 for stack storage and associated push/pop operations, along with updates in opcode gas calculations.
• Updating various utility functions and macro invocations to handle the new U256-based stack.
• Refreshing tooling configurations (rust-toolchain and Cargo.toml) to supported versions.

Reviewed Changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/mock.rs	Changed address existence check to use contains_key for clarity.
src/standard/mod.rs	Updated imports to include new types (e.g., IntoCallCreateTrap).
src/standard/gasometer/mod.rs	Updated U256 conversions for opcode cost evaluations using utility functions.
src/call_stack.rs	Modified depth check using is_some_and for clarity.
rust-toolchain.toml	Upgraded Rust version to channel 1.87.0.
jsontests/src/in_memory.rs	Applied similar changes as tests/mock.rs for account operations.
interpreter/src/utils.rs	Added new utility function u256_to_h160 for consistent conversion.
interpreter/src/machine/stack.rs	Reworked the stack implementation to use U256 and updated macros accordingly.
interpreter/src/machine/memory.rs	Adjusted doc comments reflecting memory resizing behavior.
interpreter/src/eval/system.rs	Updated push/pop macros to the new H256 and U256 conversion routines.
interpreter/src/eval/mod.rs	Modified evaluation functions to align with the new stack type.
interpreter/src/eval/misc.rs	Updated conversion operations in memory and stack management functions.
interpreter/src/eval/macros.rs	Revised macros (push_h256, pop_h256, push_u256) for proper value conversion.
interpreter/src/error/trap.rs	Adjusted error trap routines to use consistent U256/H256 conversions.
Cargo.toml	Updated rust-version to "1.70.0".