-- Migration 078: Add consecutive_403_count to proxies table
-- Per workflow-12102025.md: Track consecutive 403s per proxy
-- After 3 consecutive 403s with different fingerprints → disable proxy

ALTER TABLE proxies ADD COLUMN IF NOT EXISTS consecutive_403_count INTEGER DEFAULT 0;

-- Add comment explaining the column
COMMENT ON COLUMN proxies.consecutive_403_count IS 'Tracks consecutive 403 blocks. Reset to 0 on success. Proxy disabled at 3.';