feat: Replace custom RemoteObject wrapper with direct NoDriver 0.47+ usage (#652)

## ℹ️ Description
*Replace custom RemoteObject serialization wrapper with direct NoDriver
0.47+ RemoteObject API usage for better performance and
maintainability.*

- **Motivation**: The custom wrapper was unnecessary complexity when
NoDriver 0.47+ provides direct RemoteObject API
- **Context**: Upgrading from NoDriver 0.39 to 0.47 introduced
RemoteObject, and we want to use it as intended
- **Goal**: Future-proof implementation using the standard NoDriver
patterns

## 📋 Changes Summary

- Replace custom serialization wrapper with direct RemoteObject API
usage
- Implement proper RemoteObject detection and conversion in
web_execute()
- Add comprehensive _convert_remote_object_value() method for recursive
conversion
- Handle key/value list format from deep_serialized_value.value
- Add type guards and proper type checking for RemoteObject instances
- Maintain internal API stability while using RemoteObject as intended
- Add 19 comprehensive test cases covering all conversion scenarios
- Application tested and working with real ad download, update and
publish

### ⚙️ Type of Change
- [x] ✨ New feature (adds new functionality without breaking existing
usage)
- [x] 🐞 Bug fix (non-breaking change which fixes an issue)

## ✅ Checklist
- [x] I have reviewed my changes to ensure they meet the project's
standards.
- [x] I have tested my changes and ensured that all tests pass (pdm run
test).
- [x] I have formatted the code (pdm run format).
- [x] I have verified that linting passes (pdm run lint).
- [x] I have updated documentation where necessary.

By submitting this pull request, I confirm that you can use, modify,
copy, and redistribute this contribution, under the terms of your
choice.

src/kleinanzeigen_bot/resources/translations.de.yaml

@@ -391,9 +391,6 @@ kleinanzeigen_bot/utils/web_scraping_mixin.py:
     "4. Check browser binary permissions: %s": "4. Überprüfen Sie die Browser-Binärdatei-Berechtigungen: %s"
     "4. Check if any antivirus or security software is blocking the connection": "4. Überprüfen Sie, ob Antiviren- oder Sicherheitssoftware die Verbindung blockiert"
 
-  _convert_remote_object_result:
-    "Failed to convert RemoteObject to dict: %s": "Fehler beim Konvertieren von RemoteObject zu dict: %s"
-
   web_check:
     "Unsupported attribute: %s": "Nicht unterstütztes Attribut: %s"