Bump WizeStream to 1.15.0

[wizdom13]

• Bump WizeStream from 1.14.0 to 1.15.0 with Android versionCode 1015000.
• Add an IzzyOnDroid-compatible Fastlane changelog for versionCode 1015000: plain ASCII and 466 bytes, below the 500-byte limit.
• Add the full WizeStream 1.15.0 entry to docs/changelogs.md with a v1.14.0 -> v1.15.0 comparison link.
• Highlight YouTube caption auto-translation, expanded local music metadata/artwork, and improved local Play All / Shuffle queue navigation.
• Include Android media-control, PiP/share, fullscreen, live-speed, and broader playback stability improvements.
• Prepare the release after 28 commits on pipe since v1.14.0.