Lemenzo Gallery v1.9 — Production 10/10 Candidate

This release closes the remaining source-level feature gaps identified after v1.8 while preserving the local-only privacy model.

Photo editor
- Draggable freeform crop handles with non-destructive normalized crop state.
- Horizontal and vertical perspective correction.
- Highlights, shadows and sharpening controls.
- Local drawing/markup layer.
- Privacy redaction layer that exports as flattened opaque black pixels.
- Text overlay tool.
- Markup/redaction/text are included in editor undo/redo snapshots and Activity recreation state.
- Added Save private copy: exports the edited pixels without copying EXIF/GPS/camera metadata back into the new file.
- Expensive highlight/shadow/sharpen preview passes render on slider release to avoid UI churn.
- Ultra HDR gainmaps remain preserved only for geometry-only edits. Any tone, sharpening, vignette or flattened markup edit intentionally exports an SDR copy rather than attaching a stale gainmap.

Video editor
- Existing lossless trim, mute and frame extraction remain.
- Added lossless 90-degree rotation via MP4 orientation metadata during MediaMuxer export.

Lemenzo integration
- Added a stable Gallery -> Lemenzo Vault import intent contract.
- Gallery only exposes the Vault action when the Vault package resolves the import action.
- Gallery never deletes the source as part of the handoff. Vault owns encrypted import and any user-confirmed source removal.
- Added package visibility query for com.lemenzo.vault.

Privacy
- No INTERNET permission.
- No telemetry, account, cloud, advertising or analytics.
- Existing metadata-free JPEG streaming share remains intact.
- Redaction is flattened into the exported copy and is not a reversible UI mask.

Release gate
This is a source-level production candidate, not a runtime certification. Final release still requires:
1. Successful `m LemenzoGallery` in the target Android 16 / LemenzoOS source tree.
2. Runtime regression tests on supported Pixel devices.
3. Stress tests with large libraries, 50 MP images, Ultra HDR, DNG, Motion Photos and long/high-bitrate videos.
4. TalkBack/manual accessibility pass on a real device.