Link author-year citations in description/comment; flag missing references

[Robbie1977]

What

Link known author-year publication citations inside the definition and comment prose, and flag cited pubs that are missing from the term's References.

Previously, only the appended def_pubs microref list was linked; in-sentence citations like "Wolff et al., 2015" stayed plain text. This builds a {author-year -> FBrf} map from the term's pubs (def_pubs ∪ pub_syn ∪ pubs) and wraps matching mentions in markdown links the panel renders. Handles both Author, 2015 and Author (2015) forms; normalises to [Author, 2015](FBrf…).

Citations with no matching pub id are logged via logger.warning — they should also appear in the term's References, so a miss flags a missing has_reference edge to investigate.

Verified (live blobs)

• fan-shaped body FBbt_00003679: description + comment citations linked; flagged missing — desc: Hanesch et al., 1998; comment: Boyan and Williams, 2011, Ito and Awasaki, 2008, Young and Armstrong, 2010.
• medulla FBbt_00003748: Nern et al. (2025) (paren form) linked to FBrf0262545.
• Safety sweep across neuron/template/pub/neuron-class/EB: balanced brackets, no mangling, no crashes.