Fix URL-decoding of file:// URI paths in _resolve_model_path()

[Copilot]

_resolve_model_path() used urlparse(...).path directly without decoding percent-encoded characters, causing Path.exists() to fail for URIs with spaces or other special characters (e.g., file:///my%20models/foo.osm).

Changes

• openstudio_mcp_server/server.py: Added unquote to the urllib.parse import and applied it to the parsed path before constructing Path:

# Before
parsed = urlparse(model_uri)
return Path(parsed.path).resolve()

# After
parsed = urlparse(model_uri)
decoded_path = unquote(parsed.path)
return Path(decoded_path).resolve()

This ensures paths generated by Path(...).as_uri() (which percent-encodes characters) round-trip correctly back to a valid filesystem path.

---

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.