add

app_core/ui/auth_ui.py

@@ -0,0 +1,37 @@
+import re
+import streamlit as st
+from app_core.services.auth_service import AuthService
+
+
+def _is_valid_email(value: str) -> bool:
+    if not value:
+        return False
+    pattern = r"^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}$"
+    return re.match(pattern, value.strip()) is not None
+
+
+def render_auth_card(auth_service: AuthService) -> None:
+    left, center, right = st.columns([1, 1.2, 1])
+    with center:
+       
+        st.markdown('<div class="auth-title">Welcome !!</div>', unsafe_allow_html=True)
+        st.markdown('<div class="muted" style="margin-bottom:16px;">Sign in to continue</div>', unsafe_allow_html=True)
+
+        with st.form("login_form", clear_on_submit=False):
+            email = st.text_input("Email", placeholder="you@example.com", key="login_email")
+            password = st.text_input("Password", type="password", placeholder="••••••••", key="login_password")
+            submitted = st.form_submit_button("Sign in →", use_container_width=True)
+        if submitted:
+            if not _is_valid_email(email):
+                st.error("Enter a valid email address.")
+            elif not password:
+                st.error("Password is required.")
+            else:
+                ok, user, msg = auth_service.login(email, password)
+                if ok and user:
+                    st.session_state.auth_user = user
+                    st.success(msg)
+                    st.rerun()
+                else:
+                    st.error(msg)
+        st.markdown('</div>', unsafe_allow_html=True)