fix: reduce high-volume precision false positives

[alxxjohn]

Summary

This PR reduces high-volume false positives from the v1.3.2 CodeGuard report by hardening precision detectors instead of adding waivers. It focuses
on React/React-hook boundaries, command functions that return useful results, duplicated-knowledge noise, persistence-boundary interpretation,
structural smell precision, and noisy TypeScript/JavaScript naming conventions.

What changed

• Treats React components and named hooks as UI/state boundaries for hidden mutation and hidden side-effect checks.

• Keeps nested non-hook functions reportable when they hide real persistence/collaborator mutation.

• Allows command-style functions that write and return useful results, including create*, update*, upload*, notify*, record*, and submit*.

• Filters duplicated-knowledge noise from small numeric literals and enum/status-style option strings.

• Preserves duplicated-knowledge findings for stronger domain literals and larger domain-significant numbers.

• Allows packages/api/src/** as an API/persistence implementation boundary.

• Ignores persistence vocabulary that appears only in inline comments.

• Suppresses message-chain noise from optional chaining, API response traversal, config traversal, and row/DTO mapper traversal.

• Suppresses feature-envy noise for mapper/builder/formatter DTO-style reads from row, args, payload, etc.

• Adds naming/cardinality allowances for common TypeScript/JavaScript conventions such as opts, message, className, Icon, submit, compare, parser,
  answers, contracts, matters, risks, sections, and columns.

• Splits duplicated-knowledge precision helpers into a dedicated file to keep quality_precision.go under design-size limits.

Tests

Added regression coverage for:

• React component and hook boundary false positives.
• Commands that mutate and return useful results.
• Small numeric and enum/status duplicated-knowledge suppression.
• packages/api/src/** persistence-boundary handling.
• API/config/optional-chain traversal suppression.
• DTO mapper/builder feature-envy suppression.
• Expanded naming and cardinality conventions.
• Positive cases that should still emit for hidden mutation, command/query mix, persistence leak, and structural smells.

Validation

• go test ./tests/checks -count=1
• go test ./...
• golangci-lint run
• make codeguard-ci

All passed.