fix: add hanzo-flow to package name lookup for version detection

The Docker image installs the package as hanzo-flow but version.py
only checks for flow, flow-base, and nightly variants. This causes
a ValueError crash on startup.

src/backend/base/flow/utils/version.py

@@ -24,6 +24,7 @@ def _get_version_info():
         ValueError: If the package is not found from the list of package names.
     """
     package_options = [
+        ("hanzo-flow", "Hanzo Flow"),
         ("flow", "Flow"),
         ("flow-base", "Flow Base"),
         ("flow-nightly", "Flow Nightly"),