T YouTube Zversion test-zversion-2

Optional Zversion 2 preview built from stable v1.0.1 at commit 618fdf7. Fixes the Shorts T YouTube brand loop so it starts when the whole header becomes visible, adds the controls-only T YouTube watermark to BOTH bottom-control layouts the app can inflate, and restores effortless automatic duplicate naming (finished duplicates are renamed with the app's own createUniqueFile logic; no Generate unique name dialog; Pending/Running stay info-only and are never overwritten). Package, version code and AOSP testkey signature are unchanged, so it installs over v1.0.1 with data intact. Not a stable release - stable v1.0.1 remains the recommended download. See T-YouTube-Zversion-TEST-README.txt for the checklist.