feat(phase1a): admin-sdk base, audit helper, project seed, panel pages

- src/lib/audit.ts + src/lib/admin-sdk/base.ts (typed HTTP + auto audit)
- prisma/seed.ts seeds 5 projects (all inactive)
- pages: /projects, /projects/[key], /audit, /operations, /events, /settings
- components/panel-shell.tsx shared layout
- entrypoint runs seed after db push

apps/web/prisma/seed.ts

@@ -0,0 +1,29 @@
+import { PrismaClient } from "@prisma/client";
+
+const prisma = new PrismaClient();
+
+const projects = [
+  { key: "sase", name: "Sase.tr", description: "VIN/chassis lookup + auto parts catalog", active: false },
+  { key: "catvicer", name: "Catvicer", description: "Multi-tenant catering SaaS", active: false },
+  { key: "kokpit", name: "Kokpit", description: "Internal ops dashboard", active: false },
+  { key: "otoyedekparca", name: "otoyedekparca.co", description: "Auto parts marketplace", active: false },
+  { key: "eryaman", name: "Eryaman Evleri TYY", description: "Residence portal", active: false },
+];
+
+async function main() {
+  for (const p of projects) {
+    await prisma.project.upsert({
+      where: { key: p.key },
+      update: { name: p.name, description: p.description },
+      create: p,
+    });
+  }
+  console.log(`seeded ${projects.length} projects`);
+}
+
+main()
+  .then(() => prisma.$disconnect())
+  .catch((e) => {
+    console.error(e);
+    return prisma.$disconnect().finally(() => process.exit(1));
+  });