feat: port TechLog shells and styles

src/features/tech-log/contracts/public-site-config.ts

@@ -0,0 +1,8 @@
+export const publicSiteConfig = Object.freeze({
+  brandTitle: "TechLog",
+  identityStatement: "문제를 재현하고 검증해 운영 가능한 설계로 연결합니다.",
+  operator: "동현",
+  contactLabel: "프로필",
+  contactPath: "/profile",
+  latestRelease: "/releases/0.1.0",
+});