v0.1.4

Fixes

• Fix mmoney holdings snapshots -s / -e failing with Object of type date is not JSON serializable. Date filters retain validation and are sent as ISO strings. Fixes #29 via #30.
• Update mmoney --version to report 0.1.4, matching the package version.

Release verification

• Add regression coverage for start-only, end-only, combined, and default date filters through the library's GraphQL variables.
• The publishing workflow now smoke-tests and runs the test suite against the built wheel before uploading to PyPI.

Upgrade with pip install --upgrade mmoney.

Full changelog: v0.1.3...v0.1.4