feat: ec mul chip

[manh9203]

WIP

Resolves INT-5099

[Copilot]

Pull request overview

This PR introduces an EC (Elliptic Curve) multiplication chip to accelerate elliptic curve scalar multiplication operations. The implementation replaces manual IntrinsicCurve trait implementations with a declarative curve_declare! macro that generates the necessary boilerplate code. The PR adds hardware acceleration for EC multiplication while maintaining backward compatibility through a heuristic fallback for small operations.

Key Changes:

• Introduces openvm-ecc-curve-macros crate with curve_declare! and curve_init! macros
• Adds EC multiplication adapter, AIR, and circuit implementations
• Updates IntrinsicCurve::msm signature to include CHECK_SETUP const generic parameter
• Adds curve_name field to all curve configurations across the codebase

Reviewed changes

Copilot reviewed 48 out of 49 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
extensions/ecc/curve-macros/src/lib.rs	New proc macro crate implementing curve_declare! and curve_init! macros for code generation
extensions/rv32-adapters/src/ec_mul.rs	New adapter for EC multiplication with memory operations and register handling
extensions/ecc/circuit/src/weierstrass_chip/mul/*	EC multiplication chip implementation with execution logic and AIR constraints
extensions/ecc/circuit/src/weierstrass_chip/curves.rs	Native EC multiplication implementations for K256, P256, BN254, and BLS12_381 curves
extensions/ecc/guest/src/weierstrass.rs	Updated IntrinsicCurve trait with CHECK_SETUP parameter and set_up_once method
guest-libs/{p256,k256,pairing}/src/*.rs	Replaced manual IntrinsicCurve implementations with curve_declare! macro usage
extensions/ecc/circuit/src/extension/weierstrass.rs	Added EC mul executor, AIR, and chip integration for both 32 and 48 limb primes
crates/vm/src/arch/integration_api.rs	Added Rv32EcMulAdapterInterface and conversions for different-sized tuple arrays
**/openvm.toml	Added curve_name field to all curve configurations
extensions/ecc/transpiler/src/lib.rs	Added EC_MUL and SETUP_EC_MUL opcodes to the transpiler

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[Copilot]

The documentation comment at line 14-16 contains a TODO placeholder that should be replaced with an actual usage example showing how to use the curve_declare! macro with the point_type and scalar_type parameters.

Suggested change

	/// [TODO]
	/// MyCurve {
	/// point_type: my_crate::Point,
	/// scalar_type: my_crate::Scalar,
	/// }

[Copilot]

Inconsistent formatting: this line has excessive spacing (multiple spaces) before the # scalar comment, while other similar lines use a single space. Should maintain consistent spacing with surrounding lines.

Suggested change

	"52435875175126190479447740508185965837690552500527637822603658699938581184513", # scalar
	"52435875175126190479447740508185965837690552500527637822603658699938581184513", # scalar