fix: map drizzle PgNumeric to zero number by default

[miguelrk]

This PR corrects how Drizzle ORM's PgNumeric column type is mapped in our Zero schema.

Previously, PgNumeric was mapped to number, while Drizzle ORM defaults to handling .numeric() and .decimal() (another alias) types as strings. This is a deliberate design choice to prevent precision loss. By keeping the values as strings, their exact representation from the database is maintained.

The fix updates the mapping in drizzleColumnTypeToZeroType to:

- PgNumeric: "number",
+ PgNumeric: "string",

Would appreciate a patch release!

[0xcadams]

If you want this, I would recommend using the custom config w/ drizzle-zero.config.ts and overriding that way. Zero by default expects number for all numeric types. I don't want to override that default but understand the reasoning here.

export default drizzleZeroConfig(drizzleSchema, {
  tables: {
    user: {
      id: true,
      name: true,
      // use string() here to override
      numeric: string(),
    },
  }
});