feat: sort source token files in sort-tokens script

[tukwan]

Sort source token files in sort-tokens script

Summary

Extends sort-tokens.ts to sort source files in addition to generated files.

Problem

The script only sorted generated files (evm.json, solana.json), leaving source files (evm/*.json, solana/*.json) unsorted. This caused inconsistent ordering and noisy diffs when adding new tokens.

Solution

Updated sort-tokens.ts to sort both:

• Source files in evm/ and solana/ directories (raw token arrays)
• Generated files in token-list/ (TokenList format)

The token-listing skill now includes just sort-tokens as an explicit step after inserting tokens.

Both use localeCompare for proper alphabetical ordering.

Reference

• feat: add list token command #32