Mobile as a Virtual Volume

Description

Implement a feature for the macOS build that detects a physically connected iPhone and presents it as a "virtual volume" within the Spacedrive UI. This will allow users to browse photos and videos directly from the device and import them into a Spacedrive Location without needing to use the system's Photos app.

Implementation Notes

• [cite_start]The implementation must follow the design specified in IPHONE_AS_VOLUME_DESIGN.md [cite: 5561-5575].
• [cite_start]Use Apple's native ImageCaptureCore framework via an FFI bridge with the objc2 crate for all device communication [cite: 5563-5564].
• [cite_start]The connected device should be represented as a temporary, virtual Volume in the VolumeManager[cite: 5569].
• [cite_start]Browsing should be on-demand and ephemeral, converting ICCameraItem objects into in-memory Entry objects on the fly[cite: 5570].
• [cite_start]The import process will be a new, dedicated ImportFromDeviceAction that uses the job system to stream file data from the device to the destination location [cite: 5570-5571].
• [cite_start]The application's Info.plist must be configured with the "Hardened Runtime" and "USB" entitlements[cite: 5568].

Acceptance Criteria

• When an iPhone is connected to a Mac, it appears as a new, browsable volume in Spacedrive.
• The contents of the iPhone's camera roll (photos and videos) are displayed correctly.
• A user can select items from the iPhone volume and import them into a standard Spacedrive Location.
• The import operation shows progress and is resumable, like other Spacedrive jobs.