feat(estimation): update priority scoring weights and defaults

[antonkovalenko]

fixed wrong size labels, default reach is medum

CI Results

Test Status: ❌ FAILED

📊 Full Report

Total	Passed	Failed	Flaky	Skipped
378	373	2	1	2

Test Changes Summary ⏭️2

⏭️ Skipped Tests (2)

1. Scroll to row, get shareable link, navigate to URL and verify row is scrolled into view (tenant/diagnostics/tabs/queries.test.ts)
2. Copy result button copies to clipboard (tenant/queryEditor/queryEditor.test.ts)

Bundle Size: ✅

Current: 85.59 MB | Main: 85.59 MB
Diff: 0.00 KB (0.00%)

✅ Bundle size unchanged.

ℹ️ CI Information

• Test recordings for failed tests are available in the full report.
• Bundle size is measured for the entire 'dist' directory.
• 📊 indicates links to detailed reports.
• 🔺 indicates increase, 🔽 decrease, and ✅ no change in bundle size.

[Copilot]

Pull Request Overview

Switch priority scoring to use size-based labels and adjust default reach to medium.

• Replace effort label weights with size-based weights and add an XL tier
• Update default reach to 75 (medium), leave impact default as 75