feat: add unique index on chat to allow update chat label

prisma/postgresql-migrations/20250228130127_add_unique_chat/migration.sql

@@ -0,0 +1,8 @@
+/*
+  Warnings:
+
+  - A unique constraint covering the columns `[instanceId,remoteJid]` on the table `Chat` will be added. If there are existing duplicate values, this will fail.
+
+*/
+-- CreateIndex
+CREATE UNIQUE INDEX "Chat_instanceId_remoteJid_key" ON "Chat"("instanceId", "remoteJid");

prisma/postgresql-migrations/migration_lock.toml

@@ -1,3 +1,3 @@
 # Please do not edit this file manually
-# It should be added in your version-control system (i.e. Git)
+# It should be added in your version-control system (e.g., Git)
 provider = "postgresql"

prisma/postgresql-schema.prisma

@@ -125,6 +125,8 @@ model Chat {
   Instance       Instance  @relation(fields: [instanceId], references: [id], onDelete: Cascade)
   instanceId     String
   unreadMessages Int       @default(0)
+
+  @@unique([instanceId, remoteJid])
   @@index([instanceId])
   @@index([remoteJid])
 }
@@ -168,6 +170,7 @@ model Message {
 
   sessionId String?
   session   IntegrationSession? @relation(fields: [sessionId], references: [id])
+
   @@index([instanceId])
 }
 
@@ -183,6 +186,7 @@ model MessageUpdate {
   messageId   String
   Instance    Instance @relation(fields: [instanceId], references: [id], onDelete: Cascade)
   instanceId  String
+
   @@index([instanceId])
   @@index([messageId])
 }
@@ -199,6 +203,7 @@ model Webhook {
   updatedAt       DateTime  @updatedAt @db.Timestamp
   Instance        Instance  @relation(fields: [instanceId], references: [id], onDelete: Cascade)
   instanceId      String    @unique
+
   @@index([instanceId])
 }
 
@@ -269,6 +274,7 @@ model Setting {
   updatedAt       DateTime  @updatedAt @db.Timestamp
   Instance        Instance  @relation(fields: [instanceId], references: [id], onDelete: Cascade)
   instanceId      String    @unique
+
   @@index([instanceId])
 }