Release v0.6.0: Breaking Changes - RouteMeta type restructured

[0.6.0] - 2026-02-25

Breaking Changes

• RouteMeta type restructured - The docs metadata fields (description, tags,
  deprecated, auth, roles) must now be nested under a docs sub-object. The previous flat
  shape was inconsistent with how the HTML generator read the metadata, meaning those fields were
  silently ignored in the generated documentation.

  Before (broken - fields were silently ignored):

  t.procedure.meta({
    name: 'Get User',
    description: 'Fetch a user by ID', // ❌ never rendered
    tags: ['Users'], // ❌ never rendered
    auth: true // ❌ never rendered
  });

  After (correct):

  t.procedure.meta({
    name: 'Get User',
    docs: {
      description: 'Fetch a user by ID', // ✅
      tags: ['Users'], // ✅
      auth: true // ✅
    }
  });

  name remains at the top level of RouteMeta. All other documentation fields move under docs.