fix(regex): keep the court group inside its own parenthetical

[arthrod]

Fixes

Fixes court/year/full_span mis-association on string cites and on citations followed by another citation in the next sentence.

Summary

POST_FULL_CITATION_REGEX captured the court as (?P<court>.*?) followed by a lookahead for whitespace plus a month or year. When a citation's own year paren is (2007) there is no whitespace before the digits, so the lazy court group crawled forward across 2007). Later text (2d Cir. until it found 1997.

Fix: (?P<court>[^()]*?). Adds FindTest.test_court_year_paren_does_not_run_on covering four string-cite variants. Eyecite suite stays green (56 tests).

Defining input:

A v. B, 550 U.S. 544, 555 (2007). Later text here (2d Cir. 1997).
   -> year=2007, full_span = "A v. B, 550 U.S. 544, 555 (2007)"

AI Disclosure

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