Implemented normalized spatial fire occurrence ETL pipeline

[Sonu0823]

Summary

This PR implements the FireFusion fire occurrence ETL pipeline aligned with the normalized spatial database architecture.

Changes Made

• Added fire occurrence ingestion pipeline for 2024–2025 fire datasets
• Implemented extraction, transformation, and loading (ETL) workflow
• Added data cleaning and deduplication logic
• Integrated KDTree nearest-neighbor spatial mapping
• Replaced raw latitude/longitude storage with normalized location_id
• Integrated with location_registry
• Added chunked Supabase/PostgreSQL upload support
• Added pipeline documentation and requirements configuration

Database Architecture

The pipeline uploads processed records into the fire_occurrence fact table using normalized spatial references and foreign key-compatible schema integration.

Technical Highlights

This implementation demonstrates:

• ETL pipeline development
• geospatial data processing
• KDTree spatial mapping
• PostgreSQL + Supabase integration
• scalable batch ingestion
• normalized database architecture

Notes

• .env and raw datasets are excluded from version control
• Requires existing location_registry table in Supabase
• Uploads use chunked inserts for scalability