fix: resolve TypeScript build errors

- Use InlineKeyboardMarkup from grammy/types for proper typing
- Add QuestEvent interface for event processor
- Accept Promise<unknown> in wrapHandler for flexible return types

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

bot/bot.ts

@@ -1,4 +1,5 @@
 import { Bot, session } from 'grammy'
+import type { InlineKeyboardMarkup } from 'grammy/types'
 import { conversations, createConversation } from '@grammyjs/conversations'
 import type { BotContext, SessionData } from './types.js'
 import { onboardingConversation } from './conversations/onboarding.js'
@@ -8,7 +9,7 @@ import { t, getLang } from './i18n/index.js'
 // Helper: build reply_markup for opening the Mini App
 // Telegram requires HTTPS for both web_app and url buttons.
 // In dev (HTTP), we skip the button entirely and append the link to the message text.
-function questMarkup(label: string): { inline_keyboard: Record<string, unknown>[][] } | undefined {
+function questMarkup(label: string): InlineKeyboardMarkup | undefined {
   const appUrl = process.env.APP_URL || 'https://guidly.example.com'
   if (appUrl.startsWith('https://')) {
     return { inline_keyboard: [[ { text: label, web_app: { url: appUrl } } ]] }

bot/services/event-processor.ts

@@ -46,7 +46,15 @@ async function processEvents(bot: Bot<BotContext>) {
   }
 }
 
-async function processEvent(bot: Bot<BotContext>, event: Record<string, unknown>) {
+interface QuestEvent {
+  id: string
+  user_id: string
+  point_id: string | null
+  event_type: string
+  payload: Record<string, unknown> | null
+}
+
+async function processEvent(bot: Bot<BotContext>, event: QuestEvent) {
   // Look up the user to get their telegram_id for sending messages
   const { pool } = await import('../../api/_lib/db.js')
   const { rows: users } = await pool.query('SELECT * FROM users WHERE id = $1', [event.user_id])

server/index.ts

@@ -15,7 +15,7 @@ app.use(express.urlencoded({ extended: true }))
 app.use(cookieParser())
 
 // Wrap handler to catch errors and merge params
-function wrapHandler(handler: (req: Request, res: Response) => Promise<void>) {
+function wrapHandler(handler: (req: Request, res: Response) => Promise<unknown>) {
   return async (req: Request, res: Response, next: NextFunction) => {
     const mergedQuery = { ...req.query, ...req.params }
     Object.defineProperty(req, 'query', {