Remove OAuth authorization flows and use API key authentication for MCP

prisma/schema.prisma

@@ -33,62 +33,10 @@ model User {
   twoFactorOtpUseds    TwoFactorOtpUsed[]
   twoFactorRateLimit   TwoFactorRateLimit?
   apiKeys              ApiKey[]
-  oauthAuthorizationCodes OauthAuthorizationCode[]
-  oauthRefreshTokens      OauthRefreshToken[]
 
   @@map("user")
 }
 
-model OauthClient {
-  id           String    @id() @map("oauth_client_id") @db.Uuid
-  name         String    @db.VarChar(255)
-  redirectUris Json      @map("redirect_uris")
-  metadata     Json?
-  createdAt    DateTime? @default(now()) @map("created_at") @db.Timestamptz(6)
-
-  @@map("oauth_client")
-}
-
-model OauthAuthorizationCode {
-  id                  String    @id() @map("oauth_code_id") @db.Uuid
-  codeHash            String    @unique @map("code_hash") @db.VarChar(128)
-  userId              String    @map("user_id") @db.Uuid
-  clientId            String    @map("client_id") @db.VarChar(2048)
-  redirectUri         String    @map("redirect_uri") @db.VarChar(2048)
-  scope               String    @db.VarChar(500)
-  resource            String?   @db.VarChar(2048)
-  codeChallenge       String    @map("code_challenge") @db.VarChar(128)
-  codeChallengeMethod String    @map("code_challenge_method") @db.VarChar(10)
-  expiresAt           DateTime  @map("expires_at") @db.Timestamptz(6)
-  usedAt              DateTime? @map("used_at") @db.Timestamptz(6)
-  createdAt           DateTime? @default(now()) @map("created_at") @db.Timestamptz(6)
-
-  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
-
-  @@index([userId])
-  @@index([expiresAt])
-  @@map("oauth_authorization_code")
-}
-
-model OauthRefreshToken {
-  id         String    @id() @map("oauth_refresh_token_id") @db.Uuid
-  tokenHash  String    @unique @map("token_hash") @db.VarChar(128)
-  userId     String    @map("user_id") @db.Uuid
-  clientId   String    @map("client_id") @db.VarChar(2048)
-  scope      String    @db.VarChar(500)
-  resource   String?   @db.VarChar(2048)
-  expiresAt  DateTime  @map("expires_at") @db.Timestamptz(6)
-  revokedAt  DateTime? @map("revoked_at") @db.Timestamptz(6)
-  lastUsedAt DateTime? @map("last_used_at") @db.Timestamptz(6)
-  createdAt  DateTime? @default(now()) @map("created_at") @db.Timestamptz(6)
-
-  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
-
-  @@index([userId])
-  @@index([clientId])
-  @@map("oauth_refresh_token")
-}
-
 model ApiKey {
   id         String    @id() @map("api_key_id") @db.Uuid
   userId     String    @map("user_id") @db.Uuid