Edwin Eames
c134c05947
Replace simple exponential smoothing with a rolling-average K-factor system backed by a new auto_kfactor_history table. Budget fills are detected and excluded from calculations, outliers beyond 2-sigma are flagged, and confidence scores track data quality per customer. Adds backfill endpoint, auto-create for missing estimation records, and manual house_factor PUT endpoints for both auto and regular customers. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>