Adding the first routes.

Signed-off-by: Cliff Hill <xlorep@darkhelm.org>

backend/src/backend/dependencies/__init__.py

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+"""Dependencies for the Numinar coding project backend."""

backend/src/backend/routes/__init__.py

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+"""Routes for the Numinar coding project backend."""

backend/src/backend/routes/users.py

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+"""Routes for user-related operations in the Numinar coding project backend."""
+
+from fastapi import APIRouter
+from fastapi import HTTPException
+from sqlalchemy.exc import NoResultFound
+
+from backend.dependencies.db import SessionDep
+from backend.schemas.users import UserResponse
+from backend.services.users import get_user
+from backend.services.users import get_users
+
+
+router = APIRouter(prefix="/users", tags=["users"])
+
+
+@router.get("/", response_model=list[UserResponse])
+async def read_users(session: SessionDep):
+    """Endpoint to retrieve all users."""
+    users = await get_users(session)
+    return users
+
+
+@router.get("/{email}", response_model=UserResponse)
+async def read_user(email: str, session: SessionDep):
+    """Endpoint to retrieve a user by email."""
+    try:
+        user = await get_user(session, email)
+    except NoResultFound as e:
+        raise HTTPException(
+            status_code=404, detail=f"User with email {email} not found"
+        ) from e
+    return user