add text into potential large column

packages/server/src/database/entities/ChatFlow.ts

@@ -22,7 +22,7 @@ export class ChatFlow implements IChatFlow {
     @Column({ nullable: true })
     apikeyid?: string
 
-    @Column({ nullable: true })
+    @Column({ nullable: true, type: 'text' })
     chatbotConfig?: string
 
     @CreateDateColumn()

packages/server/src/database/entities/ChatMessage.ts

@@ -17,7 +17,7 @@ export class ChatMessage implements IChatMessage {
     @Column({ type: 'text' })
     content: string
 
-    @Column({ nullable: true })
+    @Column({ nullable: true, type: 'text' })
     sourceDocuments?: string
 
     @CreateDateColumn()

packages/server/src/database/entities/Credential.ts

@@ -13,7 +13,7 @@ export class Credential implements ICredential {
     @Column()
     credentialName: string
 
-    @Column()
+    @Column({ type: 'text' })
     encryptedData: string
 
     @CreateDateColumn()

packages/server/src/database/entities/Tool.ts

@@ -19,10 +19,10 @@ export class Tool implements ITool {
     @Column({ nullable: true })
     iconSrc?: string
 
-    @Column({ nullable: true })
+    @Column({ nullable: true, type: 'text' })
     schema?: string
 
-    @Column({ nullable: true })
+    @Column({ nullable: true, type: 'text' })
     func?: string
 
     @CreateDateColumn()