fix(cli): preserve notes during sync moves

- Leave sync and watch notes empty by default instead of writing placeholder text.
- Preserve existing remote notes when moving or adopting files without --note.
- Detect tracked local moves by SHA-256 and update remote metadata safely.
- Skip files that vanish during watch scans instead of aborting the sync cycle.
- Bump NanoShare to 1.24.0 and the standalone CLI to 0.3.0.

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "nanoshare"
-version = "1.23.0"
+version = "1.24.0"
 description = "Add your description here"
 readme = "README.md"
 requires-python = ">=3.13"