Adds ingest_legiscan.py to pull all US state + federal bills (2016-2026)
from the LegiScan API into legiscan_sessions and legiscan_bills tables.
Bills are keyword-tagged across 8 research categories (data_center,
ratepayer_protection, large_load, grid_impact, tax_incentive, etc.).
Loads ~1.3M bills; ~60K tagged relevant. Adds query_legiscan_bills.sql
with pre-built analysis queries including state/DC joins. Updates
database-tables.md, README.md, and research-ideas.md accordingly.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Add clustered vs isolated facility comparison to README
- Expand infrastructure insights with hyperscaler energy strategies
- Document additional database tables (opposition cases, IM3 projections, utility rates)
- Enhance research ideas with specific watershed names and grid saturation data
- Add data quality notes about EIA longitude corrections
- Reference loaded but unused tables for future analysis
