feat: features 025-032 - favoritos, contatos, trabalhe-conosco, area-cliente, navbar, hero-light-dark, performance-homepage

- feat(025): favoritos locais com FavoritesContext, HeartButton, PublicFavoritesPage
- feat(026): central de contatos admin (leads/contatos unificados)
- feat(027): configuração da página de contato via admin
- feat(028): trabalhe conosco - candidaturas com upload e admin
- feat(029): UX área do cliente - visitas, comparação, perfil
- feat(030): navbar UX - menu mobile, ThemeToggle, useFavorites
- feat(031): hero light/dark - imagens separadas por tema, upload, preview, seed
- feat(032): performance homepage - Promise.all parallel fetches, sessionStorage cache,
  preload hero image, loading=lazy nos cards, useInView hook, will-change carrossel,
  keyframes em index.css, AgentsCarousel e HomeScrollScene via props
- fix: light mode HomeScrollScene - gradiente, cores de texto, scroll hint

migrations: g1h2i3j4k5l6 (source em leads), h1i2j3k4l5m6 (contact_config),
            i1j2k3l4m5n6 (job_applications), j2k3l4m5n6o7 (hero theme images)

backend/app/schemas/contact_config.py

@@ -0,0 +1,43 @@
+from __future__ import annotations
+
+from pydantic import BaseModel, ConfigDict, field_validator
+
+
+class ContactConfigOut(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    address_street: str | None = None
+    address_neighborhood_city: str | None = None
+    address_zip: str | None = None
+    phone: str | None = None
+    email: str | None = None
+    business_hours: str | None = None
+
+
+class ContactConfigIn(BaseModel):
+    address_street: str | None = None
+    address_neighborhood_city: str | None = None
+    address_zip: str | None = None
+    phone: str | None = None
+    email: str | None = None
+    business_hours: str | None = None
+
+    @field_validator("email")
+    @classmethod
+    def validate_email(cls, v: str | None) -> str | None:
+        if v is None:
+            return v
+        import re
+
+        v = v.strip().lower()
+        if v and not re.match(r"^[^@\s]+@[^@\s]+\.[^@\s]+$", v):
+            raise ValueError("E-mail inválido.")
+        return v or None
+
+    @field_validator("phone")
+    @classmethod
+    def validate_phone(cls, v: str | None) -> str | None:
+        if v is None:
+            return v
+        v = v.strip()
+        return v or None