cog

379c6993 - feat: recursive SchemaType ADT, cross-file model resolution, comprehensive tests

feat: recursive SchemaType ADT, cross-file model resolution, comprehensive tests Replace the flat OutputType system with a recursive SchemaType algebraic data type that supports arbitrary nesting (dict[str, list[dict[str, int]]], etc.). Key changes: - SchemaType ADT with 7 kinds: Primitive, Any, Array, Dict, Object, Iterator, ConcatIterator - ResolveSchemaType: recursive resolver replacing ResolveOutputType - Cross-file model resolution: imports from local .py files are found on disk, parsed with tree-sitter, and BaseModel subclasses extracted automatically - Handles all local import permutations: relative, dotted, subpackage, aliased - Clear error messages for unresolvable types (includes import source and guidance) - Remove legacy OutputType, OutputKind, ObjectField, ResolveOutputType - Thread sourceDir through Parser -> ParsePredictor for filesystem access - Rewrite architecture/02-schema.md for the static Go parser Tests: 93 unit tests (12 recursive nesting, 5 unresolvable errors, 3 pydantic compat, 11 cross-file resolution, 1 end-to-end schema gen) + 1 integration test