Add sort by Wi-Fi Standard option to AccessPoints view

[gioalex07]

Summary

• Add STANDARD as a new sort option in the Access Points view.
• Users can now sort access points by Wi-Fi standard descending (Wi-Fi 7 → Wi-Fi 6 → Wi-Fi 5 → Wi-Fi 4 → Legacy → Unknown).

What does this implement/fix?

The WiFiStandard enum and its detection logic (WiFiStandard.findOne()) were already fully
implemented but not exposed as a sort criteria. This change adds STANDARD to SortBy following
the exact same pattern as the existing STRENGTH, SSID and CHANNEL options.

Sort order for STANDARD:

• Primary: Wi-Fi standard descending by wiFiStandardId (BE=8 > AX=6 > AD=7 > AC=5 > N=4 > LEGACY=1 > UNKNOWN=0)
• Secondary: signal strength descending
• Tertiary: SSID ascending
• Quaternary: BSSID ascending

Files changed:

• wifi/model/SortBy.kt — add sortByStandard() comparator and STANDARD enum entry
• res/values/arrays.xml — add index and label to sort_by_index_array and sort_by_array
• res/values/strings.xml — add sort_by_standard string resource
• wifi/model/SortByTest.kt — update size assertion, add ordinal and comparator assertions

Does this close any issues?

• N/A (new feature)

How was this tested?

• Platform: WSL2 / AlmaLinux 9
• Build variant: debug
• Toolchain: JDK 21 (Zulu), Gradle 9.3.1, Android SDK 36, Kotlin 2.3.0

./gradlew ktlintFormat                                             → BUILD SUCCESSFUL
./gradlew ktlintCheck                                              → BUILD SUCCESSFUL
./gradlew testDebugUnitTest                                        → BUILD SUCCESSFUL (3432 tests)

Checklist (required before marking ready)

• I added or updated unit tests (see app/src/test/)
• I followed the project's coding style (ktlint) and formatting
• I ran lint and addressed or documented any warnings
• CI checks pass (unit tests, coverage, lint)
• No sensitive data, keys, or secrets are included

Additional context

On devices running Android 10 or earlier (< Build.VERSION_CODES.R), WiFiStandard returns
UNKNOWN for all access points — this is existing behavior handled by WiFiStandard.findOne().
The sort remains stable in that case since tiebreakers (strength, SSID, BSSID) still apply.

Note: translations for sort_by_standard in non-English locales are not included in this PR
as the string is currently marked translatable="false" consistent with sort_by_ssid in the
existing codebase.

[VREMSoftwareDevelopment]

Thanks for the contribution.

1. AI Usage Disclosure
   Disclose any AI tool involvement and use the “AI assistance used” label.

2. Testing Requirements
   Changes must be tested on a real Android device.
   Emulator‑only testing or running build tasks (e.g., ktlintCheck, unit tests, successful Gradle build) is not sufficient.
   UI/UX behavior, layouts, gestures, and rendering often differ between emulators and actual devices.

Please update the PR with real‑device testing details so review can continue.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.76%. Comparing base (2bed1ad) to head (0008fcd).

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #604      +/-   ##
============================================
- Coverage     97.83%   97.76%   -0.07%     
- Complexity      975      979       +4     
============================================
  Files           121      121              
  Lines          2581     2818     +237     
  Branches        211      211              
============================================
+ Hits           2525     2755     +230     
- Misses           19       26       +7     
  Partials         37       37              

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[VREMSoftwareDevelopment]

Thank you for the contribution.
The CI pipeline is failing because this change reduces code coverage.
The project requires that coverage does not decrease, so additional unit tests are needed for the new or modified logic.
Please update the PR with the necessary tests so the coverage check can pass.