a ton of fun happened, refactored alot

app/routes.py

@@ -0,0 +1,15 @@
+from flask import render_template
+
+def init_app(app):
+    """
+    Register core application routes directly on the Flask app:
+      - GET  /         → home page
+      - GET  /health   → health check
+    """
+    @app.route('/')
+    def home():
+        return render_template('core/home.html')
+
+    @app.route('/health')
+    def health():
+        return 'OK', 200