feat: reestruturar jornada pública de casamentos (#52)

openspec/changes/restructure-home-weddings-corporate/specs/public-site-pages/spec.md

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+## ADDED Requirements
+
+### Requirement: Home presents the weddings and corporate editorial journey
+The home SHALL expose anchored chapters for presentation, Amare, service directions, weddings, Corporate, portfolio/acervo, testimonials and final contact paths. It MUST retain the photographic hero, tonal fields, fine rules, EB Garamond and progressive/reduced-motion behavior. Corporate SHALL present only institutional copy and a briefing CTA until authorized copy and proof exist.
+
+#### Scenario: Canonical anchor journey is reachable
+- **WHEN** a visitor loads the home or follows a `/#chapter` link from another public page
+- **THEN** the relevant chapter exists with a stable id and is reachable without JavaScript
+
+#### Scenario: Corporate does not imply unauthorized proof
+- **WHEN** a visitor loads the Corporate chapter before client proof is published
+- **THEN** no Corporate service list, image, metric or case is rendered
+
+### Requirement: Production portfolio remains truthful when no cases are published
+The public portfolio chapter SHALL render a visible acervo-em-preparação note when no real published cases are available. Production seeders MUST NOT publish development fixture cases.
+
+#### Scenario: Empty production acervo is explicit
+- **GIVEN** production has no published portfolio cases
+- **WHEN** a visitor loads the home
+- **THEN** the portfolio chapter displays the acervo preparation note and no case card
+
+## MODIFIED Requirements
+
+### Requirement: Contact page presents contact data as briefing placeholder
+
+The `contact` route SHALL render the partner and supplier inquiry page using `site_settings` contact data. The detailed event proposal form SHALL be served by the `briefing` route at `/briefing`; public proposal CTAs MUST target that route. Neither public form MUST create a Lead in the launch scope.
+
+#### Scenario: Contact page shows partner journey
+
+- **WHEN** a visitor loads `/contato`
+- **THEN** partner-specific copy, fields and privacy notice MUST be displayed
+- **AND** the detailed event briefing MUST NOT be rendered
+
+#### Scenario: Briefing route remains reachable for prospects
+
+- **WHEN** a visitor loads `/briefing`
+- **THEN** the detailed event proposal form MUST be displayed
+- **AND** no Lead record MUST be created