fix(lotus): transparent-theme contrast guard; phone-only rail shrink; live URL params

- lotusTransparent without lotusTheme warns and applies the theme anyway;
  name tags/header/footer get a subtle text-shadow + backdrop blur under
  body.lotus-transparent (#21).
- Landscape filmstrip shrink requires (pointer: coarse) so a short
  desktop/PiP window isn't reflowed as a phone (#32).
- lotusParam re-reads window.location on every call (#33).

Fixes #21
Fixes #32
Fixes #33

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA

src/grid/SpotlightLandscapeLayout.module.css

@@ -46,8 +46,12 @@ unconditionally select the container so we can use cq units */
 
 /* On a landscape phone the fixed 180px filmstrip rail squeezes the spotlight to
    a sliver; shrink the rail (keeping the 4:3 tile ratio) to give the spotlight
-   room. Desktop landscape (height > 400px) is unaffected. */
-@media (max-height: 400px) {
+   room. Desktop landscape (height > 400px) is unaffected.
+   [lotus #32] `max-height: 400px` alone also matches a short-but-wide desktop
+   or PiP window that has nothing to do with a phone, so require a coarse
+   (touch) pointer too — a resized desktop/PiP window kept its mouse pointer,
+   so it won't match this and keeps the full-size rail. */
+@media (max-height: 400px) and (pointer: coarse) {
   .layer {
     --grid-slot-width: 132px;
   }