FEAT: Re-organize Schema Parsers

- [ ] Phase out v0 parsers
- [ ] Prevent schema sprawl
- [ ] Reduce serialization/deserialization overhead

The issue mentions schema parsers, v0 parsers, and reducing serialization overhead, but does not specify which files or modules to modify. Start by examining the repository structure for schema-related code, likely under a 'schema' or 'parser' directory. Look for references to v0 parsers and serialization logic. Understanding the current schema parsing architecture and how schemas are serialized/deserialized is necessary before making changes.

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