Add createThread threadFields documentation

_snippets/graphql/create-thread.mdx

@@ -15,6 +15,13 @@ mutation createThread($input: CreateThreadInput!) {
       title
       previewText
       priority
+      threadFields {
+        id
+        key
+        type
+        stringValue
+        booleanValue
+      }
     }
     error {
       message
@@ -44,7 +51,26 @@ mutation createThread($input: CreateThreadInput!) {
         }
       }
     ],
-    "labelTypeIds": ["lt_01HB924PME9C0YWKW1N4AK3BZA"]
+    "labelTypeIds": ["lt_01HB924PME9C0YWKW1N4AK3BZA"],
+    "threadFields": [
+      {
+        "key": "my_string_field",
+        "type": "STRING",
+        "stringValue": "any value"
+      }
+    ]
+    // You can also set other thread field types like boolean or enum.
+    // "threadFields": [{
+    //   "key": "my_enum_field",
+    //   "type": "ENUM",
+    //   "stringValue": "any specified value",
+    // }],
+    //
+    // "threadFields": [{
+    //   "key": "my_bool_field",
+    //   "type": "BOOL",
+    //   "booleanValue": true,
+    // }],
   }
 }
 ```

_snippets/typescript-sdk/create-thread.mdx

@@ -1,5 +1,5 @@
 ```ts
-import { PlainClient } from '@team-plain/typescript-sdk';
+import { PlainClient, ThreadFieldSchemaType } from '@team-plain/typescript-sdk';
 
 const client = new PlainClient({ apiKey: 'plainApiKey_xxx' });
 
@@ -25,6 +25,29 @@ const res = await client.createThread({
   // Label types are created in settings where you can also copy
   // their ID.
   labelTypeIds: ['lt_01HB924PME9C0YWKW1N4AK3BZA'],
+
+  // Thread fields are created in settings where you can also copy
+  // their key.
+  threadFields: [
+    {
+      key: 'my_string_field',
+      type: ThreadFieldSchemaType.String,
+      stringValue: 'any value',
+    },
+  ],
+
+  // You can also set other thread field types like boolean or enum.
+  // threadFields: [{
+  //   key: 'my_enum_field',
+  //   type: ThreadFieldSchemaType.Enum,
+  //   stringValue: 'any specified value',
+  // }]
+  //
+  // threadFields: [{
+  //   key: 'my_bool_field',
+  //   type: ThreadFieldSchemaType.Bool,
+  //   booleanValue: true,
+  // }],
 });
 
 if (res.error) {

api-reference/graphql/threads/create.mdx

@@ -23,6 +23,9 @@ To create a thread you need a `customerId`. You can get a customer id by [creati
       - `thread:create`
       - `thread:edit`
       - `thread:read`
+      - `threadField:create`
+      - `threadField:update`
+      - `threadField:read`
 
 <Snippet file="typescript-sdk/create-thread.mdx" />