Enable Spacedrive to successfully build on Windows

[gedeondoescode]

The daemon now successfully builds and runs on Windows. A few miscellaneous changes.

Things to note:

• Indexing does not work at the moment. Database ops for jobs never occur when they should, because the job ID is not made available immediately.
• It's possible that reopening the same library duplicates the device on the frontend. Something similar occurred with the volumes, so maybe a similar fix is needed.

Closes N/A

[tembo]

Looks like inode is Option<u64> above; |i: i64| i as i64 seems like it won't compile (and a plain as cast here can truncate on overflow).

Suggested change

	inode: Set(inode.map(|i: i64| i as i64)), // Use extracted inode
	inode: Set(inode.and_then(|i| i.try_into().ok())), // Use extracted inode

[tembo]

location_root_path is a directory; File::open can fail on Windows unless you open with FILE_FLAG_BACKUP_SEMANTICS, which would make this always return None.

Suggested change

	std::fs::File::open(location_root_path).ok().and_then(|file| {
	// Open directory to get handle for GetFileInformationByHandle
	use std::os::windows::fs::OpenOptionsExt;
	use windows_sys::Win32::Foundation::HANDLE;
	use windows_sys::Win32::Storage::FileSystem::FILE_FLAG_BACKUP_SEMANTICS;
	std::fs::OpenOptions::new()
	.read(true)
	.custom_flags(FILE_FLAG_BACKUP_SEMANTICS)
	.open(location_root_path)
	.ok()
	.and_then(|file| {
	let mut info: BY_HANDLE_FILE_INFORMATION = unsafe { std::mem::zeroed() };
	let success = unsafe {
	GetFileInformationByHandle(file.as_raw_handle() as HANDLE, &mut info)
	};
	if success != 0 {
	Some(((info.nFileIndexHigh as u64) << 32) | (info.nFileIndexLow as u64))
	} else {
	None
	}
	})

[tembo]

ConvertTo-Json can emit null (eg when no objects are returned), which would currently hard-error on the object parse path. Treating that as empty keeps volume detection resilient.

Suggested change

	let trimmed = json_output.trim();
	let trimmed = json_output.trim();
	if trimmed.is_empty() || trimmed == "null" {
	debug!("PowerShell returned empty/null output");
	return Ok(Vec::new());
	}