PUB-10 Add player mark watched control

[rovkinmax]

Task Summary

PUB-10 adds a player controls button to mark the current movie or episode as watched, matching the existing watched action behavior from details and episode lists.

Changes include:

• Resolving current movie/episode watched state in the player interactor.
• Adding a one-way MarkCurrentWatched player action that calls the existing watching toggle API with status=1 and the current season/episode for series.
• Syncing current watched state and series episode UI after manual, automatic, and context-menu watched changes.
• Adding the Просмотрено control after play/pause and before episodes/audio/video controls.
• Focused interactor and player VM coverage for watched-state resolution, manual mark behavior, no-op paths, failure preservation, and synchronization cases.

Compliance Review

Compliance Review passed with no violations found in the reviewed scope. The implementation does not modify AGENTS.md, .kent/project-contract.md, or authoritative spec/plan files, uses string resources for user-visible UI text, keeps the existing auto-mark path, and follows the existing player VM/interactor/component structure.

Verification

• ./tools/agentw :app:testDevDebugUnitTest --tests 'com.kino.puber.domain.interactor.player.PlayerInteractorTest' --tests 'com.kino.puber.ui.feature.player.vm.PlayerVMTest'
  • Result: BUILD SUCCESSFUL documented in .todo/player-mark-watched-button/audit-report.md and verification-step-4.md.
• ./tools/agentw :app:compileDevDebugKotlin
  • Result: BUILD SUCCESSFUL documented in .todo/player-mark-watched-button/audit-report.md and verification-step-4.md.
• Focused device smoke on locked emulator-5554 with fresh devDebug build/install:
  • Result: passed, Просмотрено visible, /watching/toggle?id=124081&status=1&season=1&video=1 returned 200, no fatal logcat entries.
• git diff --check HEAD~1..HEAD
  • Result: no whitespace errors.

Known Skipped Checks / Blockers

• No blockers.
• Full test suite was not rerun in the ship-PR step; this PR uses the focused build, unit-test, and smoke evidence from the completed workflow artifacts.