-- 041: Add real usage receipt fields to compression analytics. ALTER TABLE compression_analytics ADD COLUMN actual_prompt_tokens INTEGER; ALTER TABLE compression_analytics ADD COLUMN actual_completion_tokens INTEGER; ALTER TABLE compression_analytics ADD COLUMN actual_total_tokens INTEGER; ALTER TABLE compression_analytics ADD COLUMN actual_cache_read_tokens INTEGER; ALTER TABLE compression_analytics ADD COLUMN actual_cache_write_tokens INTEGER; ALTER TABLE compression_analytics ADD COLUMN estimated_usd_saved REAL; ALTER TABLE compression_analytics ADD COLUMN mcp_description_tokens_saved INTEGER DEFAULT 0; ALTER TABLE compression_analytics ADD COLUMN multimodal_skip_count INTEGER DEFAULT 0; ALTER TABLE compression_analytics ADD COLUMN receipt_source TEXT; ALTER TABLE compression_analytics ADD COLUMN validation_fallback INTEGER DEFAULT 0; ALTER TABLE compression_analytics ADD COLUMN output_mode TEXT; CREATE INDEX IF NOT EXISTS idx_compression_analytics_request_id ON compression_analytics(request_id); CREATE INDEX IF NOT EXISTS idx_compression_analytics_receipt_source ON compression_analytics(receipt_source);