feat: add DataDenormalized node type to registry

[pyramation]

Summary

Registers DataDenormalized as a proper node type in node-type-registry. This was previously only available as a module config table (metaschema_modules_public.denormalized_table_field) with no registry entry — meaning it wasn't discoverable via the node type system or documented in skills.

DataDenormalized creates INSERT/UPDATE triggers that copy field values from a referenced parent table into the current table whenever the FK changes. Primary use case: denormalizing database_id onto junction tables so RLS policies can filter locally without joining through the parent.

// packages/node-type-registry/src/data/data-denormalized.ts
export const DataDenormalized: NodeTypeDefinition = {
  name: 'DataDenormalized',
  category: 'data',
  parameter_schema: {
    required: ['field', 'set_fields', 'ref_field', 'ref_fields'],
    properties: {
      field:          { format: 'column-ref' },  // FK on this table
      set_fields:     { items: { format: 'column-ref' } },  // fields to populate
      ref_field:      { format: 'column-ref' },  // FK target on parent
      ref_fields:     { items: { format: 'column-ref' } },  // fields to copy from parent
      use_updates:    { default: true },
      update_defaults:{ default: true },
      func_order:     { default: 0 },
    }
  }
};

Parameters mirror the existing metaschema_generators.denormalized_table_field() signature. Wiring into table_module() dispatch is a follow-up in constructive-db.

Link to Devin session: https://app.devin.ai/sessions/12842f98263d4815b6713291efc825ad
Requested by: @pyramation

[devin-ai-integration]

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