OverCite 0.3.0 expands beyond ADS/SciX while keeping the same simple workflow.

We now support usage for researchers in astrophysics, physics, math, computer science, biology/medicine, chemistry, and cross-disciplinary fields within them.

New:
- Subject-area presets for astrophysics, physics, math, computer science, biology/medicine, chemistry, and general DOI lookup
- New source support: arXiv, INSPIRE, Crossref, PubMed, and DataCite
- Optional custom source routing
- New citation key style: Author:Year
- Improved ranking for first authors, matching years, duplicate records, arXiv preprints, datasets, software, and non-paper records
- Direct lookup is now called Raw query

ADS/SciX remains the default fast path for astrophysics users.

Added a new citation-key mode: bibcode. OverCite can now rewrite inserted citations to ADS bibcodes such as 1975CMaPh..43..199H in both the browser and VS Code extensions.