perf: add selectors to derived hooks, export IOU getters

[rinej]

Explanation of Change

This is PR 1 of 5 in the IOURequestStepScan decomposition series (see #85571 for the full split plan).

Adds Onyx selectors to derived hooks to prevent full-collection re-renders:

• useReportIsArchived: uses isArchivedReport as selector for stable boolean output
• useDefaultExpensePolicy: extracts getSingleGroupPolicyID selector, replaces collection iteration with selector + per-key lookup
• usePolicyForMovingExpenses: extracts getPolicyQualificationResult selector returning only IDs and flags
• useReportAttributes: adds useReportAttributesByID for single-report lookups with cheap deep comparison

Also exports two getter functions from IOU actions (getAllTransactionDrafts, getAllReportNameValuePairs) needed by downstream variant components.

No user-visible behavior changes — return types and values are preserved.

Fixed Issues

$ #85583

Tests

• Verify that no errors appear in the JS console
• Verify existing IOU request flows work unchanged (create expense, edit receipt, split bill)
• Verify expense policy auto-selection still works correctly

Offline tests

N/A — no offline behavior changes

QA Steps

Same as tests

PR Author Checklist

• I linked the correct issue in the ### Fixed Issues section above
• I wrote clear testing steps that cover the changes made in this PR
  • I added steps for local testing in the Tests section
  • I added steps for the expected offline behavior in the Offline steps section
  • I added steps for Staging and/or Production testing in the QA steps section
  • I added steps to cover failure scenarios
  • I turned off my network connection and tested it while offline
  • I tested this PR with a High Traffic account against the staging or production API
• I included screenshots or videos for tests on all platforms
• I ran the tests on all platforms & verified they passed on:
  • Android: Native
  • Android: mWeb Chrome
  • iOS: Native
  • iOS: mWeb Safari
  • MacOS: Chrome / Safari
• I verified there are no console errors
• I followed proper code patterns
• If a new code pattern is added I verified it was agreed to be used by multiple Expensify engineers
• I followed the guidelines as stated in the Review Guidelines
• I tested other components that can be impacted by my changes
• I verified all code is DRY
• I verified any variables that can be defined as constants are defined as such
• I verified that if a function's arguments changed that all usages have also been updated correctly

[codecov]

Codecov Report

✅ Changes either increased or maintained existing code coverage, great job!

Files with missing lines	Coverage Δ
src/hooks/usePolicyForMovingExpenses.ts	93.47% <100.00%> (+8.62%)	⬆️
src/hooks/useReportIsArchived.ts	100.00% <100.00%> (ø)
src/hooks/useReportAttributes.ts	0.00% <0.00%> (ø)
src/libs/actions/IOU/index.ts	75.30% <66.66%> (+2.16%)	⬆️
src/hooks/useDefaultExpensePolicy.tsx	62.50% <53.84%> (+22.50%)	⬆️
... and 542 files with indirect coverage changes