Get FEMA disaster declarations filtered by state, year, or type.
Returns federal disaster declarations including major disasters,
emergencies, and fire management assistance. Each record includes
the disaster number, title, declaration date, and affected area.
Args:
state: Two-letter US state abbreviation (e.g. 'CA', 'TX', 'FL').
year: Filter by fiscal year of the declaration (e.g. 2023).
disaster_type: Declaration type code: 'DR' (major disaster),
'EM' (emergency), or 'FM' (fire management assistance).
limit: Maximum number of records to return (default 25, max 1000).