Upload chat.ts

chat.ts

@@ -0,0 +1,22 @@
+export type AIProvider = "openai" | "openrouter" | "groq" | "grok"
+
+export interface Message {
+  id: string
+  role: "user" | "assistant"
+  content: string
+  provider?: AIProvider
+  timestamp: Date
+  file?: {
+    name: string
+    type: string
+    content: string
+  }
+}
+
+export interface ChatSession {
+  id: string
+  title: string
+  messages: Message[]
+  createdAt: Date
+  updatedAt: Date
+}