Add hermetic video player tests

[rovkinmax]

Summary

• Add hermetic synthetic player fixtures and loopback media-server coverage for the real PlaybackController → Media3/ExoPlayer → MediaCodec/Surface path.
• Cover HLS/progressive playback, tracks, faults/recovery, cache, lifecycle, progress, TV D-pad focus, navigation, and stale callback/session guards without production backend or credentials.
• Redesign player instrumentation around readable direct Kaspresso ownership: technical tests use Kaspresso.Builder.simple(), Compose UI journeys use Kaspresso.Builder.withComposeSupport() and Kakao screen/robot abstractions.

Final architecture and acceptance corrections

• Every one of the 42 player instrumentation methods owns its Kaspresso run block and named step(...) narrative.
• The four unique E2E journeys own their 21 steps directly; no opaque one-use journey methods or generic scenario/factory wrapper remains.
• Stable root-scoped PlayerScreen tags and a typed TV-remote API cover concrete focus assertions and D-pad behavior while low-level Media3, network, cache, lifecycle, resource, and request-journal assertions remain direct and event-based.
• F-01: strict single-owner fixture SHA256SUMS parsing plus exact packaged 18-entry verification and malformed/duplicate/unsafe manifest regressions.
• F-02: documentation now maps all six classes, builders, and direct per-test run/step ownership; the source-to-documentation audit covers 42/42 methods.

Compliance

Final Compliance Review: passed (sequence 138 current-tree deterministic evidence and sequence 139 current-tree smoke evidence). No compliance violations or unreviewed findings remain.

Verification

• git diff --check — passed before commit and on the committed tree.
• Current-tree resolver-validated APK pair — passed: target SHA-256 221bcd2b5b3cad893fa008e8f3ec6eff280f7cc0f479857e677795733fa74b86; test SHA-256 3811f8fc7c3d62c8822348e2e560864d3b7c2074a2d2daeffaa704644814aee.
• Host, production compile/package, instrumentation compile, fixture integrity, and production-exclusion verification — passed.
• Full com.kino.puber.ui.feature.player instrumentation suite with explicit adb -s emulator-5556 — passed twice, 42/42 each, without selective or flaky retry.
• Preservation-safe install, bounded diagnostics/request-journal checks, cleanup/evidence audit, and emulator lease release — passed.

Notes

• Fixtures and test dependencies remain excluded from production runtime artifacts.
• No absolute emulator performance thresholds were introduced; HEVC/AC3 decode diagnostics remain out of scope while AC3 fallback logic is host-tested.
• PR remains open and unmerged. CI for the new head should be monitored; no auto-merge or branch deletion has been enabled.

[rovkinmax]

тут тоже tagged можно использовать. tagged вынести как экстеншн в утильный класс и переиспользовать в будущем