feat(db): add core models for video streaming platform

- 【Models】Introduce schemas for Movies, Series, Seasons, Episodes, and
related video, genre, and tag tables.
- 【User Interaction】Add models for Comments, Likes, Ratings, Playlists,
and Watch History to support user engagement.
- 【Enums】Define new enums for content, upload, session, and
notification types to standardize states across the application.

refactor(schema): standardize primary keys and relations
- 【Primary Keys】Migrate all primary key default values from cuid() to
uuid() for industry-standard identifiers.
- 【Data Integrity】Implement onDelete: Cascade on relations to ensure
automatic cleanup of orphaned records.
- 【Enums】Consolidate session status into a single unified enum for
consistency across user and admin models.

chore(db): improve timestamp precision
- 【Timestamps】Specify millisecond precision (@db .Timestamp(3)) for all
DateTime fields to enhance data accuracy.

prisma/schema.prisma

@@ -6,83 +6,123 @@ datasource db {
   provider = "postgresql"
 }
 
+// ================ ENUMS =================
+
 enum USER_STATUS {
   ENABLED
   DISABLED
   INVITED
 }
 
+enum SESSION_STATUS {
+  CURRENT
+  EXPIRED
+  REVOKED
+}
+
+enum UPLOAD_STATUS {
+  UPLOADING
+  PROCESSING
+  COMPLETED
+  FAILED
+}
+
+enum NOTIFICATION_TYPE {
+  NEW_MOVIE
+  NEW_SERIES
+  NEW_EPISODE
+  COMMENT_REPLY
+  COMMENT_LIKE
+  CONTENT_LIKE
+  ACCOUNT_UPDATE
+  SUBSCRIPTION_REMINDER
+  RECOMMENDATION
+}
+
+enum CONTENT_TYPE {
+  MOVIE
+  SERIES
+  EPISODE
+}
+
+// ============ USER MANAGEMENT ============
+
 model User {
-  id            String      @id @default(cuid())
+  id            String      @id @default(uuid())
   uniqueId      String      @unique
   email         String?     @unique
   phone         String?
-  code          String? // country code
+  code          String?
   firstName     String?
   lastName      String?
   status        USER_STATUS @default(INVITED)
   emailVerified Boolean     @default(false)
   phoneVerified Boolean     @default(false)
-  lastLogin     DateTime?
-  createdAt     DateTime    @default(now())
-  updatedAt     DateTime    @updatedAt
+  lastLogin     DateTime?   @db.Timestamp(3)
+  createdAt     DateTime    @default(now()) @db.Timestamp(3)
+  updatedAt     DateTime    @updatedAt @db.Timestamp(3)
   isDeleted     Boolean     @default(false)
 
   // Relations
-  sessions    UserSession[]
-  credentials UserCredential[]
+  sessions       UserSession[]
+  credentials    UserCredential[]
+  watchHistories WatchHistory[]
+  notifications  Notification[]
+  playlists      Playlist[]
+  likes          Like[]
+  ratings        Rating[]
+  comments       Comment[]
+  commentLikes   CommentLike[]
 
   @@map("users")
 }
 
 model UserSession {
-  id           String    @id @default(cuid())
+  id           String         @id @default(uuid())
   userId       String
-  accessToken  String    @db.Text
-  refreshToken String    @db.Text
+  accessToken  String         @db.Text
+  refreshToken String         @db.Text
   ipAddress    String?
-  userAgent    String?   @db.Text
+  userAgent    String?        @db.Text
   geoIpCountry String?
   clientId     String?
-  loginAt      DateTime?
-  logoutAt     DateTime?
-  createdAt    DateTime  @default(now())
-  updatedAt    DateTime  @updatedAt
-  isDeleted    Boolean   @default(false)
+  status       SESSION_STATUS @default(CURRENT)
+  loginAt      DateTime?      @db.Timestamp(3)
+  logoutAt     DateTime?      @db.Timestamp(3)
+  expiredAt    DateTime?      @db.Timestamp(3)
+  createdAt    DateTime       @default(now()) @db.Timestamp(3)
+  updatedAt    DateTime       @updatedAt @db.Timestamp(3)
+  isDeleted    Boolean        @default(false)
 
   // Relations
-  user User @relation(fields: [userId], references: [id])
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
 
   @@map("user_sessions")
 }
 
 model UserCredential {
-  id        String   @id @default(cuid())
+  id        String   @id @default(uuid())
   userId    String
   password  String
-  createdAt DateTime @default(now())
-  updatedAt DateTime @updatedAt
+  createdAt DateTime @default(now()) @db.Timestamp(3)
+  updatedAt DateTime @updatedAt @db.Timestamp(3)
   isDeleted Boolean  @default(false)
 
   // Relations
-  user User @relation(fields: [userId], references: [id])
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
 
   @@map("user_credentials")
 }
 
-enum SUPER_ADMIN_SESSION_STATUS {
-  CURRENT
-  EXPIRED
-  REVOKED
-}
+// ============ SUPER ADMIN ============
 
 model SuperAdmin {
-  id           String   @id @default(cuid())
+  id           String   @id @default(uuid())
   email        String   @unique
   name         String
   profileImage String?
-  createdAt    DateTime @default(now())
-  updatedAt    DateTime @updatedAt
+  createdAt    DateTime @default(now()) @db.Timestamp(3)
+  updatedAt    DateTime @updatedAt @db.Timestamp(3)
   isDeleted    Boolean  @default(false)
 
   // Relations
@@ -93,41 +133,507 @@ model SuperAdmin {
 }
 
 model SuperAdminSession {
-  id           String                     @id @default(cuid())
+  id           String         @id @default(uuid())
   superAdminId String
-  accessToken  String                     @db.Text
-  refreshToken String                     @db.Text
+  accessToken  String         @db.Text
+  refreshToken String         @db.Text
   ipAddress    String?
-  userAgent    String?                    @db.Text
+  userAgent    String?        @db.Text
   geoIpCountry String?
   city         String?
   state        String?
   latitude     Float?
   longitude    Float?
-  isFromAdmin  Boolean                    @default(false)
-  status       SUPER_ADMIN_SESSION_STATUS @default(CURRENT)
-  loginAt      DateTime?
-  expiredAt    DateTime?
-  createdAt    DateTime                   @default(now())
-  updatedAt    DateTime                   @updatedAt
-  isDeleted    Boolean                    @default(false)
+  isFromAdmin  Boolean        @default(false)
+  status       SESSION_STATUS @default(CURRENT)
+  loginAt      DateTime?      @db.Timestamp(3)
+  expiredAt    DateTime?      @db.Timestamp(3)
+  createdAt    DateTime       @default(now()) @db.Timestamp(3)
+  updatedAt    DateTime       @updatedAt @db.Timestamp(3)
+  isDeleted    Boolean        @default(false)
 
   // Relations
-  superAdmin SuperAdmin @relation(fields: [superAdminId], references: [id])
+  superAdmin SuperAdmin @relation(fields: [superAdminId], references: [id], onDelete: Cascade)
 
   @@map("super_admin_sessions")
 }
 
 model SuperAdminCredential {
-  id           String   @id @default(cuid())
+  id           String   @id @default(uuid())
   superAdminId String
   password     String
-  createdAt    DateTime @default(now())
-  updatedAt    DateTime @updatedAt
+  createdAt    DateTime @default(now()) @db.Timestamp(3)
+  updatedAt    DateTime @updatedAt @db.Timestamp(3)
   isDeleted    Boolean  @default(false)
 
   // Relations
-  superAdmin SuperAdmin @relation(fields: [superAdminId], references: [id])
+  superAdmin SuperAdmin @relation(fields: [superAdminId], references: [id], onDelete: Cascade)
 
   @@map("super_admin_credentials")
 }
+
+// ============ MOVIES ============
+
+model Movie {
+  id           String        @id @default(uuid())
+  title        String
+  slug         String        @unique
+  description  String?       @db.Text
+  thumbnailUrl String
+  bannerUrl    String?
+  trailerUrl   String?
+  rating       String?
+  releaseYear  Int?
+  language     String?
+  duration     Int?
+  imdbId       String?
+  tmdbId       String?
+  isFeatured   Boolean       @default(false)
+  uploadStatus UPLOAD_STATUS @default(COMPLETED)
+  views        Int           @default(0)
+  createdAt    DateTime      @default(now()) @db.Timestamp(3)
+  updatedAt    DateTime      @updatedAt @db.Timestamp(3)
+  isDeleted    Boolean       @default(false)
+
+  // Relations
+  genres        MovieGenre[]
+  tags          MovieTag[]
+  video         MovieVideo?
+  comments      Comment[]
+  likes         Like[]
+  ratings       Rating[]
+  playlistItems PlaylistItem[]
+  watchHistory  WatchHistory[]
+
+  @@index([isDeleted])
+  @@index([isFeatured])
+  @@index([slug])
+  @@map("movies")
+}
+
+model MovieVideo {
+  id           String        @id @default(uuid())
+  movieId      String        @unique
+  videoUrl     String
+  videoKey     String?
+  fileSize     BigInt?
+  quality      String?
+  uploadStatus UPLOAD_STATUS @default(COMPLETED)
+  createdAt    DateTime      @default(now()) @db.Timestamp(3)
+  updatedAt    DateTime      @updatedAt @db.Timestamp(3)
+  isDeleted    Boolean       @default(false)
+
+  // Relations
+  movie Movie @relation(fields: [movieId], references: [id], onDelete: Cascade)
+
+  @@index([isDeleted])
+  @@map("movie_videos")
+}
+
+model MovieGenre {
+  id        String   @id @default(uuid())
+  movieId   String
+  genreId   String
+  createdAt DateTime @default(now()) @db.Timestamp(3)
+
+  // Relations
+  movie Movie @relation(fields: [movieId], references: [id], onDelete: Cascade)
+  genre Genre @relation(fields: [genreId], references: [id], onDelete: Cascade)
+
+  @@unique([movieId, genreId])
+  @@index([movieId])
+  @@index([genreId])
+  @@map("movie_genres")
+}
+
+// ============ SERIES ============
+
+model Series {
+  id           String        @id @default(uuid())
+  title        String
+  slug         String        @unique
+  description  String?       @db.Text
+  thumbnailUrl String
+  bannerUrl    String?
+  trailerUrl   String?
+  rating       String?
+  releaseYear  Int?
+  language     String?
+  imdbId       String?
+  tmdbId       String?
+  isFeatured   Boolean       @default(false)
+  uploadStatus UPLOAD_STATUS @default(COMPLETED)
+  views        Int           @default(0)
+  createdAt    DateTime      @default(now()) @db.Timestamp(3)
+  updatedAt    DateTime      @updatedAt @db.Timestamp(3)
+  isDeleted    Boolean       @default(false)
+
+  // Relations
+  genres        SeriesGenre[]
+  tags          SeriesTag[]
+  seasons       Season[]
+  comments      Comment[]
+  likes         Like[]
+  ratings       Rating[]
+  playlistItems PlaylistItem[]
+  watchHistory  WatchHistory[]
+
+  @@index([isDeleted])
+  @@index([isFeatured])
+  @@index([slug])
+  @@map("series")
+}
+
+model Season {
+  id           String   @id @default(uuid())
+  seriesId     String
+  seasonNumber Int
+  title        String
+  description  String?  @db.Text
+  thumbnailUrl String?
+  releaseYear  Int?
+  createdAt    DateTime @default(now()) @db.Timestamp(3)
+  updatedAt    DateTime @updatedAt @db.Timestamp(3)
+  isDeleted    Boolean  @default(false)
+
+  // Relations
+  series   Series    @relation(fields: [seriesId], references: [id], onDelete: Cascade)
+  episodes Episode[]
+
+  @@unique([seriesId, seasonNumber])
+  @@index([seriesId])
+  @@map("seasons")
+}
+
+model Episode {
+  id            String   @id @default(uuid())
+  seasonId      String
+  episodeNumber Int
+  title         String
+  description   String?  @db.Text
+  thumbnailUrl  String?
+  duration      Int
+  createdAt     DateTime @default(now()) @db.Timestamp(3)
+  updatedAt     DateTime @updatedAt @db.Timestamp(3)
+  isDeleted     Boolean  @default(false)
+
+  // Relations
+  season        Season         @relation(fields: [seasonId], references: [id], onDelete: Cascade)
+  video         EpisodeVideo?
+  comments      Comment[]
+  likes         Like[]
+  ratings       Rating[]
+  playlistItems PlaylistItem[]
+  watchHistory  WatchHistory[]
+
+  @@unique([seasonId, episodeNumber])
+  @@index([seasonId])
+  @@map("episodes")
+}
+
+model EpisodeVideo {
+  id           String        @id @default(uuid())
+  episodeId    String        @unique
+  videoUrl     String
+  videoKey     String?
+  fileSize     BigInt?
+  quality      String?
+  uploadStatus UPLOAD_STATUS @default(COMPLETED)
+  createdAt    DateTime      @default(now()) @db.Timestamp(3)
+  updatedAt    DateTime      @updatedAt @db.Timestamp(3)
+  isDeleted    Boolean       @default(false)
+
+  // Relations
+  episode Episode @relation(fields: [episodeId], references: [id], onDelete: Cascade)
+
+  @@index([isDeleted])
+  @@map("episode_videos")
+}
+
+model SeriesGenre {
+  id        String   @id @default(uuid())
+  seriesId  String
+  genreId   String
+  createdAt DateTime @default(now()) @db.Timestamp(3)
+
+  // Relations
+  series Series @relation(fields: [seriesId], references: [id], onDelete: Cascade)
+  genre  Genre  @relation(fields: [genreId], references: [id], onDelete: Cascade)
+
+  @@unique([seriesId, genreId])
+  @@index([seriesId])
+  @@index([genreId])
+  @@map("series_genres")
+}
+
+// ============ GENRES ============
+
+model Genre {
+  id          String   @id @default(uuid())
+  name        String   @unique
+  slug        String   @unique
+  description String?  @db.Text
+  icon        String?
+  sortOrder   Int      @default(0)
+  createdAt   DateTime @default(now()) @db.Timestamp(3)
+  updatedAt   DateTime @updatedAt @db.Timestamp(3)
+  isDeleted   Boolean  @default(false)
+
+  // Relations
+  movieGenres  MovieGenre[]
+  seriesGenres SeriesGenre[]
+
+  @@index([slug])
+  @@map("genres")
+}
+
+// ============ UNIFIED COMMENT ============
+
+model Comment {
+  id          String       @id @default(uuid())
+  content     String       @db.Text
+  userId      String
+  contentType CONTENT_TYPE
+  movieId     String?
+  seriesId    String?
+  episodeId   String?
+  parentId    String?
+  createdAt   DateTime     @default(now()) @db.Timestamp(3)
+  updatedAt   DateTime     @updatedAt @db.Timestamp(3)
+  isDeleted   Boolean      @default(false)
+
+  // Relations
+  user    User          @relation(fields: [userId], references: [id], onDelete: Cascade)
+  movie   Movie?        @relation(fields: [movieId], references: [id], onDelete: Cascade)
+  series  Series?       @relation(fields: [seriesId], references: [id], onDelete: Cascade)
+  episode Episode?      @relation(fields: [episodeId], references: [id], onDelete: Cascade)
+  parent  Comment?      @relation("CommentReplies", fields: [parentId], references: [id], onDelete: Cascade)
+  replies Comment[]     @relation("CommentReplies")
+  likes   CommentLike[]
+
+  @@index([movieId, isDeleted])
+  @@index([seriesId, isDeleted])
+  @@index([episodeId, isDeleted])
+  @@index([userId, isDeleted])
+  @@index([contentType, isDeleted])
+  @@map("comments")
+}
+
+// ============ UNIFIED LIKE ============
+
+model Like {
+  id          String       @id @default(uuid())
+  userId      String
+  contentType CONTENT_TYPE
+  movieId     String?
+  seriesId    String?
+  episodeId   String?
+  isLike      Boolean
+  createdAt   DateTime     @default(now()) @db.Timestamp(3)
+
+  // Relations
+  user    User     @relation(fields: [userId], references: [id], onDelete: Cascade)
+  movie   Movie?   @relation(fields: [movieId], references: [id], onDelete: Cascade)
+  series  Series?  @relation(fields: [seriesId], references: [id], onDelete: Cascade)
+  episode Episode? @relation(fields: [episodeId], references: [id], onDelete: Cascade)
+
+  // Only one of movieId/seriesId/episodeId should be non-null per row (enforce in code)
+  @@unique([userId, movieId])
+  @@unique([userId, seriesId])
+  @@unique([userId, episodeId])
+  @@index([movieId, contentType])
+  @@index([seriesId, contentType])
+  @@index([episodeId, contentType])
+  @@map("likes")
+}
+
+// ============ COMMENT LIKE ============
+
+model CommentLike {
+  id        String   @id @default(uuid())
+  userId    String
+  commentId String
+  isLike    Boolean
+  createdAt DateTime @default(now()) @db.Timestamp(3)
+
+  // Relations
+  user    User    @relation(fields: [userId], references: [id], onDelete: Cascade)
+  comment Comment @relation(fields: [commentId], references: [id], onDelete: Cascade)
+
+  @@unique([userId, commentId])
+  @@index([commentId])
+  @@map("comment_likes")
+}
+
+// ============ PLAYLISTS ============
+
+model Playlist {
+  id          String   @id @default(uuid())
+  name        String
+  description String?  @db.Text
+  userId      String
+  createdAt   DateTime @default(now()) @db.Timestamp(3)
+  updatedAt   DateTime @updatedAt @db.Timestamp(3)
+  isDeleted   Boolean  @default(false)
+
+  // Relations
+  user  User           @relation(fields: [userId], references: [id], onDelete: Cascade)
+  items PlaylistItem[]
+
+  @@index([userId, isDeleted])
+  @@map("playlists")
+}
+
+model PlaylistItem {
+  id          String       @id @default(uuid())
+  playlistId  String
+  contentType CONTENT_TYPE
+  movieId     String?
+  seriesId    String?
+  episodeId   String?
+  position    Int
+  createdAt   DateTime     @default(now()) @db.Timestamp(3)
+
+  // Relations
+  playlist Playlist @relation(fields: [playlistId], references: [id], onDelete: Cascade)
+  movie    Movie?   @relation(fields: [movieId], references: [id], onDelete: Cascade)
+  series   Series?  @relation(fields: [seriesId], references: [id], onDelete: Cascade)
+  episode  Episode? @relation(fields: [episodeId], references: [id], onDelete: Cascade)
+
+  // Only one of movieId/seriesId/episodeId should be non-null per row (enforce in code)
+  @@unique([playlistId, movieId])
+  @@unique([playlistId, seriesId])
+  @@unique([playlistId, episodeId])
+  @@index([playlistId])
+  @@index([movieId, contentType])
+  @@index([seriesId, contentType])
+  @@index([episodeId, contentType])
+  @@map("playlist_items")
+}
+
+// ============ WATCH HISTORY ============
+
+model WatchHistory {
+  id          String       @id @default(uuid())
+  userId      String
+  contentType CONTENT_TYPE
+  movieId     String?
+  seriesId    String?
+  episodeId   String?
+  watchedAt   DateTime     @default(now()) @db.Timestamp(3)
+  watchTime   Int
+  duration    Int
+  completed   Boolean      @default(false)
+
+  // Relations
+  user    User     @relation(fields: [userId], references: [id], onDelete: Cascade)
+  movie   Movie?   @relation(fields: [movieId], references: [id], onDelete: Cascade)
+  series  Series?  @relation(fields: [seriesId], references: [id], onDelete: Cascade)
+  episode Episode? @relation(fields: [episodeId], references: [id], onDelete: Cascade)
+
+  @@index([userId, contentType])
+  @@index([movieId])
+  @@index([seriesId])
+  @@index([episodeId])
+  @@map("watch_history")
+}
+
+// ============ NOTIFICATIONS ============
+
+model Notification {
+  id        String            @id @default(uuid())
+  userId    String
+  type      NOTIFICATION_TYPE
+  title     String
+  message   String            @db.Text
+  read      Boolean           @default(false)
+  data      Json?
+  createdAt DateTime          @default(now()) @db.Timestamp(3)
+  isDeleted Boolean           @default(false)
+
+  // Relations
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
+
+  @@index([userId, isDeleted])
+  @@index([userId, read, isDeleted])
+  @@map("notifications")
+}
+
+// ============ RATINGS (Star Ratings 1-5) ============
+
+model Rating {
+  id          String       @id @default(uuid())
+  userId      String
+  contentType CONTENT_TYPE
+  movieId     String?
+  seriesId    String?
+  episodeId   String?
+  value       Int
+  createdAt   DateTime     @default(now()) @db.Timestamp(3)
+  updatedAt   DateTime     @updatedAt @db.Timestamp(3)
+
+  // Relations
+  user    User     @relation(fields: [userId], references: [id], onDelete: Cascade)
+  movie   Movie?   @relation(fields: [movieId], references: [id], onDelete: Cascade)
+  series  Series?  @relation(fields: [seriesId], references: [id], onDelete: Cascade)
+  episode Episode? @relation(fields: [episodeId], references: [id], onDelete: Cascade)
+
+  // Only one of movieId/seriesId/episodeId should be non-null per row (enforce in code)
+  @@unique([userId, movieId])
+  @@unique([userId, seriesId])
+  @@unique([userId, episodeId])
+  @@index([movieId, contentType])
+  @@index([seriesId, contentType])
+  @@index([episodeId, contentType])
+  @@map("ratings")
+}
+
+// ============ TAGS (Flexible Content Tags) ============
+
+model Tag {
+  id        String   @id @default(uuid())
+  name      String   @unique
+  slug      String   @unique
+  createdAt DateTime @default(now()) @db.Timestamp(3)
+  updatedAt DateTime @updatedAt @db.Timestamp(3)
+  isDeleted Boolean  @default(false)
+
+  // Relations
+  movieTags  MovieTag[]
+  seriesTags SeriesTag[]
+
+  @@index([slug])
+  @@map("tags")
+}
+
+model MovieTag {
+  id        String   @id @default(uuid())
+  movieId   String
+  tagId     String
+  createdAt DateTime @default(now()) @db.Timestamp(3)
+
+  // Relations
+  movie Movie @relation(fields: [movieId], references: [id], onDelete: Cascade)
+  tag   Tag   @relation(fields: [tagId], references: [id], onDelete: Cascade)
+
+  @@unique([movieId, tagId])
+  @@index([movieId])
+  @@index([tagId])
+  @@map("movie_tags")
+}
+
+model SeriesTag {
+  id        String   @id @default(uuid())
+  seriesId  String
+  tagId     String
+  createdAt DateTime @default(now()) @db.Timestamp(3)
+
+  // Relations
+  series Series @relation(fields: [seriesId], references: [id], onDelete: Cascade)
+  tag    Tag    @relation(fields: [tagId], references: [id], onDelete: Cascade)
+
+  @@unique([seriesId, tagId])
+  @@index([seriesId])
+  @@index([tagId])
+  @@map("series_tags")
+}