match: series-less queries, unified series spellings, number-trust discipline, narrators

[KodeStar]

Driven by a live replay of audiosilo-sidecars' coverage matching over a real 1147-book library, where 510 books failed to resolve against meta.audiosilo.app and several resolved to the WRONG work.

What

• Series-less queries link via the candidate's own series when the query title spells it out (any spelling form). "Chaos Seeds 1" now finds the Improve the onboarding process #1 card titled "The Land: Founding"; the sibling veto finally reaches "The Path of Ascension 4" vs the Copy invite #10.5 card (previously a token-subset false match).
• One seriesForms spelling enumeration (paren-stripped, article-dropped, " Series"-suffix base) feeds both the containment probe and stripSeries, whose removal is now word-boundary-aware ("Land Series" no longer corrupts "The Landlord" into "The lord").
• Number-trust discipline in the bare branch: vetoes need both sides bare; a wordy candidate confirms only via SeriesIndex; a wordy query only via its Sequence column. Sub-series markers ("Part 1", "Volume 5") are noise - the package doc always said so, and now the code agrees ("Forged in Blood: Part 1" is Emperor's Edge Allow different database options #6 again).
• Full-title containment outranks bare sequence agreement within a series (local tags renumber franchises - a "HALO Favourites #9" tag was picking Silentium over an exact-title Primordium card), directional so an omnibus card cannot tie the true volume.
• Book/Query gain Narrators: real libraries tag the narrator as the author (David Tennant on Cressida Cowell books), and catalog cards know both. Additive; no existing caller changes.

Notes

• This bundles the uncommitted bare-series-title round found in the working tree (stripSeries, bookSeqRef, the seriesLinked restructure, TestBestBareSeriesTitle) - the new work builds directly on it and they are not separable.
• Structural refactors were verified behavior-identical by a 300k-trial randomized differential harness; every new rule is individually mutation-tested (reverting each breaks exactly its own tests).
• Corpus validation: unknown books 510 -> 45 (with the sidecars retrieval ladder), zero regressions vs the previous matcher over the full library, and two previously-wrong omnibus matches now resolve to the correct individual volumes.
• audiosilo-manager's four match-consuming packages compile and pass their tests against this change.
• audiosilo-sidecars bumps its module pin in a companion PR.