feat: Improve VFS rename and copy operations

- Return FSEntry from `rename` and `copy` operations in VFS
  to provide more information about the result.  This allows
  access to metadata after a successful rename or copy.

- Update `LocalVFS` and `NestedVFS` implementations to return
  the appropriate FSEntry objects after successful rename and
  copy operations.

lib/vfs/vfscore/interface.v

@@ -63,8 +63,8 @@ mut:
 	// Common operations
 	exists(path string) bool
 	get(path string) !FSEntry
-	rename(old_path string, new_path string) !
+	rename(old_path string, new_path string) !FSEntry
-	copy(src_path string, dst_path string) !
+	copy(src_path string, dst_path string) !FSEntry
 	move(src_path string, dst_path string) !FSEntry
 	delete(path string) !
 

lib/vfs/vfscore/local.v

@@ -227,7 +227,7 @@ pub fn (myvfs LocalVFS) get(path string) !FSEntry {
 	}
 }
 
-pub fn (myvfs LocalVFS) rename(old_path string, new_path string) ! {
+pub fn (myvfs LocalVFS) rename(old_path string, new_path string) !FSEntry {
 	abs_old := myvfs.abs_path(old_path)
 	abs_new := myvfs.abs_path(new_path)
 
@@ -241,9 +241,16 @@ pub fn (myvfs LocalVFS) rename(old_path string, new_path string) ! {
 	os.mv(abs_old, abs_new) or {
 		return error('Failed to rename ${old_path} to ${new_path}: ${err}')
 	}
+	metadata := myvfs.os_attr_to_metadata(new_path) or {
+		return error('Failed to get metadata: ${err}')
+	}
+	return LocalFSEntry{
+		path:     new_path
+		metadata: metadata
+	}
 }
 
-pub fn (myvfs LocalVFS) copy(src_path string, dst_path string) ! {
+pub fn (myvfs LocalVFS) copy(src_path string, dst_path string) !FSEntry {
 	abs_src := myvfs.abs_path(src_path)
 	abs_dst := myvfs.abs_path(dst_path)
 
@@ -255,6 +262,13 @@ pub fn (myvfs LocalVFS) copy(src_path string, dst_path string) ! {
 	}
 
 	os.cp(abs_src, abs_dst) or { return error('Failed to copy ${src_path} to ${dst_path}: ${err}') }
+	metadata := myvfs.os_attr_to_metadata(abs_dst) or {
+		return error('Failed to get metadata: ${err}')
+	}
+	return LocalFSEntry{
+		path:     dst_path
+		metadata: metadata
+	}
 }
 
 pub fn (myvfs LocalVFS) move(src_path string, dst_path string) !FSEntry {

lib/vfs/vfsnested/vfsnested.v

@@ -142,7 +142,7 @@ pub fn (mut self NestedVFS) get(path string) !vfscore.FSEntry {
 	return impl.get(rel_path)
 }
 
-pub fn (mut self NestedVFS) rename(old_path string, new_path string) ! {
+pub fn (mut self NestedVFS) rename(old_path string, new_path string) !vfscore.FSEntry {
 	mut old_impl, old_rel_path := self.find_vfs(old_path)!
 	mut new_impl, new_rel_path := self.find_vfs(new_path)!
 
@@ -150,10 +150,11 @@ pub fn (mut self NestedVFS) rename(old_path string, new_path string) ! {
 		return error('Cannot rename across different VFS implementations')
 	}
 
-	return old_impl.rename(old_rel_path, new_rel_path)
+	renamed_file := old_impl.rename(old_rel_path, new_rel_path)!
+	return renamed_file
 }
 
-pub fn (mut self NestedVFS) copy(src_path string, dst_path string) ! {
+pub fn (mut self NestedVFS) copy(src_path string, dst_path string) !vfscore.FSEntry {
 	mut src_impl, src_rel_path := self.find_vfs(src_path)!
 	mut dst_impl, dst_rel_path := self.find_vfs(dst_path)!
 
@@ -164,8 +165,9 @@ pub fn (mut self NestedVFS) copy(src_path string, dst_path string) ! {
 	// Copy across different VFS implementations
 	// TODO: Q: What if it's not file? What if it's a symlink or directory?
 	data := src_impl.file_read(src_rel_path)!
-	dst_impl.file_create(dst_rel_path)!
+	new_file := dst_impl.file_create(dst_rel_path)!
-	return dst_impl.file_write(dst_rel_path, data)
+	dst_impl.file_write(dst_rel_path, data)!
+	return new_file
 }
 
 pub fn (mut self NestedVFS) move(src_path string, dst_path string) !vfscore.FSEntry {