Increase max_completion_tokens to 8192 for larger itinerary JSON

Return matched destination name instead of user input in map response

Add LLM fuzzy fallback for map location matching

Switch map lookup to code-level, bypass LLM

Add map_url to itinerary and map query rule to system prompt

using LLM typhoon-v2.5-30b-a3b-instruct

initialize code structure

initialize app