sky.html: snap-binary aperture scroll (wheel ↔ form, full aperture each); SAVE SKY animates scrollTop back to 0 — TDD

post-save the .sky-page aperture flips into scroll-snap-y-mandatory mode: wheel-col & form-col each fill the aperture & carry scroll-snap-align:start, so vertical scroll toggles between them rather than free-flowing through both. Modal-body uses display:contents so the cols become direct flex children of .sky-page (where min-height:100% resolves against the explicit aperture height); wheel-col's aspect-ratio/max-height caps are released under body.sky-saved so the section actually fills the aperture instead of clipping at 480px. SAVE SKY's success branch calls _scrollApertureToTop(), a 280ms RAF loop w. ease-out cubic so the user lands back on the wheel after confirming from the form section. New FT class MySkyApertureSnapScrollTest covers (T1) snap-type:y mandatory + scroll-snap-align:start on both cols, (T2) scrollTop returns to 0 after SAVE SKY click; both red before the SCSS+JS, green after. Snap behavior is gated on body.sky-saved (set by sky_view based on user.sky_chart_data) so the pre-save form-only flow is untouched.

Code architected by Disco DeDisco <discodedisco@outlook.com>
Git commit message Co-Authored-By:
Claude Sonnet 4.6 <noreply@anthropic.com>

src/apps/dashboard/views.py

@@ -374,7 +374,7 @@ def sky_view(request):
         "saved_birth_lat":   request.user.sky_birth_lat,
         "saved_birth_lon":   request.user.sky_birth_lon,
         "saved_birth_tz":    request.user.sky_birth_tz,
-        "page_class":  "page-sky",
+        "page_class":  "page-sky" + (" sky-saved" if chart_data else ""),
     })