Migrate frontend to TypeScript and extend user profile

Converted frontend codebase from JavaScript to TypeScript, including pages, components, and context. Added new layout and UI kit components. Updated backend user model and schemas to support profile fields (firstname, lastname, age, gender, height, weight, unit_preference) and added endpoints for reading/updating current user. Introduced food log listing endpoint and migration script for user table. Updated dependencies and build configs for TypeScript and Tailwind v4.

backend/app/api/v1/endpoints/users.py

@@ -6,7 +6,7 @@ from sqlmodel import Session, select
 from app.api import deps
 from app.core import security
 from app.models.user import User
-from app.schemas.user import UserCreate, UserRead
+from app.schemas.user import UserCreate, UserRead, UserUpdate
 
 router = APIRouter()
 
@@ -36,3 +36,31 @@ def create_user(
     session.commit()
     session.refresh(user)
     return user
+
+
+@router.get("/me", response_model=UserRead)
+def read_user_me(
+    current_user: deps.CurrentUser,
+) -> Any:
+    """
+    Get current user.
+    """
+    return current_user
+
+
+@router.put("/me", response_model=UserRead)
+def update_user_me(
+    *,
+    session: Session = Depends(deps.get_session),
+    user_in: UserUpdate,
+    current_user: deps.CurrentUser,
+) -> Any:
+    """
+    Update own user.
+    """
+    user_data = user_in.model_dump(exclude_unset=True)
+    current_user.sqlmodel_update(user_data)
+    session.add(current_user)
+    session.commit()
+    session.refresh(current_user)
+    return current_user