replace bip44 coin type with custom format

[ihooni]

Description

This PR updates the coin type format from the BIP44-based type to the new CustomCoinTypes format.

Related Issue

Closes #11

[ihooni]

After approved, i'll upload broadcast files for GIWA Sepolia

[Copilot]

Pull Request Overview

This PR replaces the BIP44-based coin type system with a custom format that uses ASCII ticker symbols packed into a uint256. The new format stores the ticker length in the most significant byte and the ticker characters in little-endian order in the lower bytes. The version is bumped from 0.2.0 to 0.3.0 to reflect this breaking change.

Key Changes

• Introduces CustomCoinTypes library with encoding/decoding functions for ASCII ticker-based coin types
• Replaces BIP44CoinTypes with CustomCoinTypes throughout the codebase
• Updates test constants from numeric coin types (e.g., 0) to packed ticker format (e.g., 0x03...435442 for "BTC")

Reviewed Changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/libraries/Types.sol	Adds new CustomCoinTypes library with ticker-to-uint256 encoding/decoding logic
src/abstract/BalanceValidationResolverUpgradeable.sol	Switches from BIP44CoinTypes to CustomCoinTypes import and using statement
src/BalanceDojangResolver.sol	Updates version from 0.2.0 to 0.3.0
test/libraries/CustomCoinTypes.t.sol	Comprehensive test suite for the new CustomCoinTypes library
test/abstract/BalanceValidationResolverUpgradeable.t.sol	Updates test constants to use new coin type format
test/BalanceDojangResolver.t.sol	Updates test constants and expected version to match new format
src/interfaces/IDojangScroll.sol	Reformats function signature to single line
src/interfaces/IAttestationIndexer.sol	Reformats function signature to single line
src/AttestationIndexer.sol	Reformats function signature to single line
package.json	Bumps version to 0.3.0
.node-version	Adds Node.js version specification
.github/workflows/ci.yaml	Updates path to read Node.js version from root directory

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[Copilot]

Operator precedence issue: 1 << 31 + 1 evaluates as 1 << (31 + 1) due to operator precedence, which equals 1 << 32. This should be (1 << 31) + 1 to create an invalid coin type for testing purposes.

Suggested change

	attestation.data = abi.encode(1 << 31 + 1, 1_700_000_000 - 1, BALANCE);
	attestation.data = abi.encode((1 << 31) + 1, 1_700_000_000 - 1, BALANCE);