bam-engine 0.2.0

Major release introducing validation and calibration frameworks for model verification, pipeline hooks for cleaner model extensions (@event(after="..."), before, replace), and 50-80% performance improvements through optimized logging and vectorized market operations.

New packages:

• validation/ - Acceptance testing with baseline and growth+ scenarios
• calibration/ - Parameter optimization via sensitivity analysis and grid search

Highlights:

• Data collection enhancements: Timed results capture via capture_after="event_name"
• Price event re-ordering: Breakeven price calculation → price adjustment (now uses projected output) → production → average market price update
• Labor market fixes: Worker wages now update with minimum wage adjustments, sequential firms-workers matching
• Goods market fixes: Corrected loyalty/preferential attachment behavior

Breaking changes:

• Config renamed: min_wage → min_wage_ratio, net_worth_init → net_worth_ratio
• Results API: results.economy → results.economy_data, requires collect=True
• Defaults changed: 100→300 firms, 500→3000 households, delta 0.4→0.1
• Event renamed: FirmsCalcCreditMetrics → FirmsCalcFinancialFragility

See CHANGELOG for complete details of what's included in this version.

If you want to get started with using BAM Engine, see the README.