fix(auth): wiring Auth/Sessions, нормализация email, GetUserByID для /me, 409 на дубль, timing-guard логина

internal/store/db/users.sql.go

@@ -48,3 +48,19 @@ func (q *Queries) GetUserByEmail(ctx context.Context, email string) (User, error
 	)
 	return i, err
 }
+
+const getUserByID = `-- name: GetUserByID :one
+SELECT id, email, created_at, password_hash FROM users WHERE id = $1
+`
+
+func (q *Queries) GetUserByID(ctx context.Context, id uuid.UUID) (User, error) {
+	row := q.db.QueryRow(ctx, getUserByID, id)
+	var i User
+	err := row.Scan(
+		&i.ID,
+		&i.Email,
+		&i.CreatedAt,
+		&i.PasswordHash,
+	)
+	return i, err
+}