Fix operator precedence values to match MDN specification

[phillipc]

Summary

Corrects operator precedence values in packages/utils.parser/src/operators.ts to match the MDN Operator Precedence table.

What changed

The precedence constants were using an outdated numbering that diverged from MDN's current 18→1 scale. Key fixes:

• Bitwise operators were in reversed order: | (12) > ^ (11) > & (10) — now correctly & (7) > ^ (6) > | (5)
• Relational/equality operators overlapped with bitwise: comparison and bitwise shared precedence levels 10–11 — now properly separated (relational 9, equality 8, bitwise 7/6/5)
• All values shifted to match MDN's scale: member access 19→17, prefix 16→14, exponent 15→13, multiplicative 14→12, additive 13→11, logical AND 6→4, logical OR 5→3, arrow 1→2, comma 2→1
• Function-level equality operators (looseEqual, etc.) updated from precedence 10 to 8

Verification

All 404 parser tests pass. Full suite (5371 tests) passes.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: c116c37d-5bc6-4f6c-93ef-95a7034158e5

📥 Commits

Reviewing files that changed from the base of the PR and between d823f22 and 3e7a37a.

📒 Files selected for processing (1)

• packages/utils.parser/src/operators.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch pc/342-parser-wrong-operator-precedence

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