Add regional labor rates: Pacific Northwest (union & open shop)

[masonearl]

Background

The labor rates in tools/estimating/estimating_tools.py (LABOR_RATES dict) are national ballpark numbers. They are significantly off for union shops in the Pacific Northwest (Washington, Oregon), where prevailing wage rates for operators, laborers, and ironworkers can be 40–60% higher than the defaults.

What needs to change

Update or add regional rate support in tools/estimating/estimating_tools.py for:

• Operator (IUOE Local 302/612) — current WA prevailing wage
• Laborer (LIUNA Local 292/440) — current WA prevailing wage
• Foreman — current prevailing wage
• Non-union / open shop rates for the same region

Why it matters

Anyone running an estimate for work in Seattle, Portland, or surrounding areas will get numbers that are way off. Real data here makes the tool trustworthy.

How to contribute

1. Fork the repo
2. Update LABOR_RATES in tools/estimating/estimating_tools.py
3. Add your source (L&I prevailing wage tables, union CBA, recent certified payroll, etc.) in a comment
4. Open a PR

Source: Washington State L&I prevailing wage rates are published at https://lni.wa.gov/licensing-permits/public-works-projects/prevailing-wage-rates/