Module validator 

Semantic validation of the raw AST into the resolved Schema IR.

The validator walks the ferriorm_core::ast::SchemaFile produced by the parser and performs the following:

• Resolves field type names to scalars, enums, or model references.
• Infers database table and column names from @@map/@map or snake_case conventions.
• Checks that every model has a primary key (@id or @@id).
• Detects duplicate model/enum names and unknown type references.
• Resolves relation cardinality and referential actions.

The output is an ferriorm_core::schema::Schema, the canonical IR consumed by codegen and the migration engine.

Functions

validate

Validate a parsed AST and produce a resolved Schema IR.