Resolve route mismatch between OpenRouteService and Mapbox navigation instructions

[LourenzBani]

Problem

The route displayed on the map does not always match the generated navigation instructions.

Current Behavior

• OpenRouteService produces a route.
• Mapbox generates turn-by-turn instructions.
• Instructions may direct users through incorrect or inefficient roads.
• UI/TTS output may differ from displayed route geometry.

Expected Behavior

• Navigation instructions should correspond exactly to the displayed route.
• TTS, UI instructions, and map visualization should remain synchronized.