feat: initialize k-tv-frontend with Next.js and Tailwind CSS

- Added package.json with dependencies and scripts for development, build, and linting.
- Created postcss.config.mjs for Tailwind CSS integration.
- Added SVG assets for UI components including file, globe, next, vercel, and window icons.
- Configured TypeScript with tsconfig.json for strict type checking and module resolution.

k-tv-backend/infra/src/auth/mod.rs

@@ -0,0 +1,19 @@
+//! Authentication infrastructure
+//!
+//! This module contains the concrete implementation of authentication mechanisms.
+
+/// Hash a password using the password-auth crate
+pub fn hash_password(password: &str) -> String {
+    password_auth::generate_hash(password)
+}
+
+/// Verify a password against a stored hash
+pub fn verify_password(password: &str, hash: &str) -> bool {
+    password_auth::verify_password(password, hash).is_ok()
+}
+
+#[cfg(feature = "auth-oidc")]
+pub mod oidc;
+
+#[cfg(feature = "auth-jwt")]
+pub mod jwt;