This PR tackles the inconsistent QtCamera photo orientation (auto-orientation / azimuth-related mismatch) by introducing a simple manual override that the user can set once and keep.

What changed

1. QML: “Phone rotate” control

• Adds a “Phone rotate” button that appears only on mobile and only when the device is not in portrait (landscape / rotated mode).
• Lets users pick the correct orientation (and preview/try alternatives).
• Persists the chosen rotation via Settings, so the app consistently applies the user’s preference on future captures.

2. C++: rotate saved image for consistency

• Applies the same selected rotation to the captured image file (pixels are rotated and orientation tags normalized) so that:

  • QML preview and external viewers match
  • EXIF orientation doesn’t cause double-rotation

Why

QtCamera / platform auto-orientation is unreliable across devices, and I can understand why qt cannot come with a rigid fix for this, as there are thousands of devices with different mechanism within it and for one universal fix. Persisting a user-selected rotation is a pragmatic fallback that prevents repeated wrong-orientation captures without forcing a single hardcoded behavior.

Issue related that could (perhaps) be fixed with this: #7005 #5820 #5224

Demo: