feat(settings): add textarea type, add systemInstructions

src/lib/config/index.ts

@@ -40,6 +40,16 @@ class ConfigManager {
         default: 'dark',
         scope: 'client',
       },
+      {
+        name: 'System Instructions',
+        key: 'systemInstructions',
+        type: 'textarea',
+        required: false,
+        description: 'Add custom behavior or tone for the model.',
+        placeholder:
+          'e.g., "Respond in a friendly and concise tone" or "Use British English and format answers as bullet points."',
+        scope: 'client',
+      },
     ],
     modelProviders: [],
     search: [

src/lib/config/types.ts

@@ -32,10 +32,17 @@ type PasswordUIConfigField = BaseUIConfigField & {
   default?: string;
 };
 
+type TextareaUIConfigField = BaseUIConfigField & {
+  type: 'textarea';
+  placeholder?: string;
+  default?: string;
+};
+
 type UIConfigField =
   | StringUIConfigField
   | SelectUIConfigField
-  | PasswordUIConfigField;
+  | PasswordUIConfigField
+  | TextareaUIConfigField;
 
 type ConfigModelProvider = {
   id: string;
@@ -87,4 +94,5 @@ export type {
   StringUIConfigField,
   ModelProviderUISection,
   ConfigModelProvider,
+  TextareaUIConfigField,
 };