feat: noble curve replace elliptic

[hieu-w]

Motivation and Context

Jira Link:

Description

• Replace elliptic by @noble/curves ver 2
• Remove Buffer

How has this been tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project. (run lint)
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.
• My code requires a db migration.

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Note

High Risk
This rewrites core cryptographic primitives (ECDSA/ECDH/ECIES) and changes key/ciphertext types from Buffer to Uint8Array, which can affect interoperability and security-sensitive behavior (e.g., key validation, signature formatting, padding/MAC handling). Extensive tests were added, but any subtle mismatch could break consumers.

Overview
Replaces the underlying crypto implementation by swapping elliptic for @noble/curves across sign/verify, derive/derivePadded, and ECIES encrypt/decrypt, including new public/private key validation via noble utilities.

Switches all binary inputs/outputs from Buffer to Uint8Array (including the Ecies shape), updates hash/HMAC/AES plumbing to avoid Buffer helpers, and adjusts ECDH output behavior to preserve legacy “unpadded” semantics while keeping derivePadded() fixed at 32 bytes.

Updates dependencies and tests: removes elliptic from runtime deps, adds @noble/curves, introduces a dev-only eccrypto-old alias plus a comprehensive backward_compatibility.spec.ts, and tweaks browser test config to skip those node-only compatibility tests (removing the prior Buffer setup).

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[ieow]

lgtm

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.