Prepare integrated IPTV test build

[oxyroid]

Summary

• Integrates the shared IPTV/data fixes with the smartphone and TV app changes into one testable branch.
• Fixes M3U import scheduling so user-triggered M3U imports do not wait on WorkManager validated-network constraints.
• Adds phone and TV intent handling updates, TV focus/status work, playback/setting refinements, CI checksums, and Telegram artifact upload fixes.

Validation

• GitHub Actions Android CI: https://github.com/oxyroid/M3UAndroid/actions/runs/28616705512
• CI artifacts verified locally after download: smartphone-apks, tv-apk, and combined artifact.
• sha256sum -c passed for downloaded CI checksum files.
• Local integration validation already run:
  • :data:testDebugUnitTest :business:foryou:testDebugUnitTest
  • :app:smartphone:assembleDebug :app:tv:assembleDebug
  • :app:smartphone:assembleRelease :app:tv:assembleRelease
  • smartphone file M3U import to Room
  • TV file M3U import to Room
  • smartphone real-data import using YanG-1989/m3u Migu.m3u with 45 channels
  • TV AVD 720p launch, DPad smoke test, resolver checks, and file M3U import

Notes

• Draft PR for staged validation. The user should verify APK behavior before marking ready.
• The first two CI runs on this branch failed only in the Telegram upload step; the latest run is green.