feat: Implement smart waiting utilities for improved page readiness and element detection

- Added `waitForPageReady` and `waitForElementSmart` functions to replace fixed timeouts with intelligent checks.
- Updated various parts of the codebase to utilize the new smart wait functions, enhancing performance and reliability.
- Improved logging for page readiness and element detection.
- Refactored login and browser functions to reduce unnecessary waits and enhance user experience.
- Fixed selector for MORE_ACTIVITIES to avoid strict mode violations.
- Added unit tests for smart wait utilities to ensure functionality and performance.

package.json

@@ -18,6 +18,7 @@
   "scripts": {
     "clean": "rimraf dist",
     "install-deps": "npm install && npx playwright install chromium",
+    "postinstall": "npm run build",
     "typecheck": "tsc --noEmit",
     "build": "tsc",
     "postbuild": "node -e \"console.log('\\n✅ Build complete! Run \\\"npm start\\\" to launch the bot.\\n')\"",