feat: add Stream table & boilerplate

src/main/java/com/ddf/vodsystem/repositories/StreamRepository.java

@@ -0,0 +1,9 @@
+package com.ddf.vodsystem.repositories;
+
+import com.ddf.vodsystem.entities.Stream;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface StreamRepository extends JpaRepository<Stream, Long> {
+}

src/main/java/com/ddf/vodsystem/repositories/UserRepository.java

@@ -11,4 +11,7 @@ import java.util.Optional;
 public interface UserRepository extends JpaRepository<User, Long> {
     @Query("SELECT u FROM User u WHERE u.googleId = ?1")
     Optional<User> findByGoogleId(String googleId);
+
+    @Query("SELECT u FROM User u WHERE u.streamKey = ?1")
+    Optional<User> findByStreamKey(String streamKey);
 }