- useSpotCommunityScore now also reads crews (35006, `a` ref, weight 3) and Lab
profile links (35001-35014, `a` ref, weight 2) as effortful signals — a whole
crew listing the spot, or a Lab pro linking it, is strong evidence. A crew
ref alone reaches "community". (Tours/events use geohash, not a spot coord,
so they're not counted.)
- Spot page: on an unconfirmed spot, a logged-in non-owner now sees a "Be the
first to confirm this spot" nudge with Add-photo + "I've skated here".
- Breakdown line/tooltip include crew + Lab counts.
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