fix: make forwardToStorage fully dynamic based on fileType

- Replace forceDocument boolean with fileType string in forwardToStorage
- Dynamically call matching sendPhoto, sendAudio, sendVideo, sendVoice, sendAnimation, sendSticker, or sendDocument Telegraf API method
- Correctly extract uploaded file details based on what Telegram returned
- Fixes IMAGE_PROCESS_FAILED 500 error when uploading ogg audio, video, sticker, or voice notes via HTTP
- Update upload.ts, bot.ts, and test suites to match the new dynamic signature

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/bot.ts

@@ -96,7 +96,7 @@ export const startBot = async (): Promise<Telegraf<Context>> => {
             return;
           }
 
-          const result = await forwardToStorage(file_id, fileName);
+          const result = await forwardToStorage(file_id, fileName, fileType);
           const publicId = nanoid();
 
           const uploaded = {