Star-cruise camera round 2: persistent free-look, whole-alien framing, top-down arrival

Follow-up to the user's rapid-fire camera feedback (all three deployed live were mechanically working but didn't match intent):

• FREE-LOOK persists (app/starcruise.js): removed the 3.5s auto-recenter that snapped the view back to forward — it read as "can't change my view when flying between planets." A drag now HOLDS where you leave it

• WHOLE-ALIEN framing (app/starcruise.js): the landed auto-cam still filled the frame with the (big, winged/horned) creatures.

TOP-DOWN ARRIVAL — the descent now falls to a pose high OVER the landing pad looking straight DOWN at the little planet, then eases onto the pad

Verified: starcruise-run 79/79, full-boot-run healthy.

▶ Play it: Unblinking Interval → Barometric Stampede → Food Court Eternity — a three-star constellation to watch the map work https://stellate.app/?genre=techno&seed=7627&path=1956.22436,1718.20526,1679.4415&xdur=0.042

ff9c74e https://github.com/aboard-io/stellate/commit/ff9c74eb3c79a1f2d68e38224d5ae5681267b515