feat(*): add multiple image support

frontend/src/lib/convex/messages.ts

@@ -35,6 +35,8 @@ export const create = mutation({
 		source: v.union(v.literal('telegram'), v.literal('web')),
 		imageBase64: v.optional(v.string()),
 		imageMediaType: v.optional(v.string()),
+		imagesBase64: v.optional(v.array(v.string())),
+		imagesMediaTypes: v.optional(v.array(v.string())),
 		followUpOptions: v.optional(v.array(v.string())),
 		isStreaming: v.optional(v.boolean())
 	},
@@ -47,6 +49,8 @@ export const create = mutation({
 			source: args.source,
 			imageBase64: args.imageBase64,
 			imageMediaType: args.imageMediaType,
+			imagesBase64: args.imagesBase64,
+			imagesMediaTypes: args.imagesMediaTypes,
 			followUpOptions: args.followUpOptions,
 			createdAt: Date.now(),
 			isStreaming: args.isStreaming
@@ -166,11 +170,24 @@ export const getChatImages = query({
 			.withIndex('by_chat_id', (q) => q.eq('chatId', args.chatId))
 			.collect();
 
-		return messages
-			.filter((m) => m.imageBase64 && m.imageMediaType)
-			.map((m) => ({
-				base64: m.imageBase64!,
-				mediaType: m.imageMediaType!
-			}));
+		const images: Array<{ base64: string; mediaType: string }> = [];
+
+		for (const m of messages) {
+			if (m.imagesBase64 && m.imagesMediaTypes) {
+				for (let i = 0; i < m.imagesBase64.length; i++) {
+					images.push({
+						base64: m.imagesBase64[i],
+						mediaType: m.imagesMediaTypes[i]
+					});
+				}
+			} else if (m.imageBase64 && m.imageMediaType) {
+				images.push({
+					base64: m.imageBase64,
+					mediaType: m.imageMediaType
+				});
+			}
+		}
+
+		return images;
 	}
 });