Saved route preferences are not consistently stored or displayed

[LourenzBani]

Problem

Route preferences are intended to be saved for personalization but as the developers noted it is not entirely working as of the moment.

Current Behavior

• Trips are saved successfully.
• Route preference information is missing from many saved trips.
• Trip history often displays "None" as the preference.

Expected Behavior

• User route preferences should be stored correctly.
• Trip history should accurately display saved preferences.

Investigation Areas

• Database schema
• Preference storage logic
• Trip history retrieval
• Backend API responses