feat: revamp portfolio with case studies, curriculo page, and local SEO

Adds dynamic case study and curriculo routes, project health monitoring
for live demo status, and strengthens local SEO (structured data,
service-area targeting for Garuva/Joinville/Curitiba, a dedicated
"criação de sites" service page) so search results better match the
professional title (Engenheiro da Computação) and experience (5 anos).

Co-Authored-By: Claude Sonnet 5 <[email protected]>

lib/portfolio-data.ts

@@ -0,0 +1,50 @@
+import { readFile } from "node:fs/promises";
+import { resolve } from "node:path";
+import portfolioData from "@/public/portfolio-data.json";
+import {
+  createProjectHealthSnapshot,
+  filterLiveProjects,
+  type ProjectHealthSnapshot,
+} from "./project-health";
+
+export type PortfolioData = typeof portfolioData;
+export type PortfolioProject = PortfolioData["projects"][number];
+export type PortfolioExperience = PortfolioData["experiences"][number];
+export type PortfolioSkillCategory =
+  PortfolioData["skills"]["technical"][number];
+
+export const portfolio = portfolioData;
+
+export function getLiveFeaturedProjects(
+  snapshot: ProjectHealthSnapshot | null,
+  now = new Date(),
+) {
+  return filterLiveProjects<PortfolioProject>(
+    portfolio.projects,
+    snapshot,
+    now,
+  );
+}
+
+export async function loadProjectHealthSnapshot(): Promise<ProjectHealthSnapshot | null> {
+  try {
+    const path = resolve(process.cwd(), "data/project-health.json");
+    return JSON.parse(await readFile(path, "utf8")) as ProjectHealthSnapshot;
+  } catch {
+    return null;
+  }
+}
+
+export async function loadLiveFeaturedProjects() {
+  const fromSnapshot = getLiveFeaturedProjects(await loadProjectHealthSnapshot());
+  if (fromSnapshot.length > 0) return fromSnapshot;
+
+  const projectDemos = portfolio.projects.reduce<
+    Array<{ id: string; demoUrl: string }>
+  >((demos, project) => {
+    if (project.demoUrl) demos.push({ id: project.id, demoUrl: project.demoUrl });
+    return demos;
+  }, []);
+  const freshSnapshot = await createProjectHealthSnapshot(projectDemos);
+  return getLiveFeaturedProjects(freshSnapshot);
+}