fix(android): responsive HUD typography + portrait orientation lock

Closes the final two P2 Android playability items:

1. HUD typography — new `update_hud_typography` system fires on
   `WindowResized` and adjusts Tier-1 font sizes: below 480 logical px
   Score drops HEADLINE(26)→BODY_LG(18) and Moves/Timer drop
   BODY_LG(18)→CAPTION(11), so all three fit in the 180dp HUD column
   on a 360dp phone without wrapping.

2. Orientation lock — `[package.metadata.android.application.activity]`
   with `orientation = "portrait"` in solitaire_app/Cargo.toml; cargo-apk
   maps this to `android:screenOrientation="portrait"` in the generated
   AndroidManifest.xml.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

solitaire_app/Cargo.toml

@@ -82,3 +82,9 @@ label = "Solitaire Quest"
 # `debuggable` defaults to false on release builds; cargo-apk flips it
 # automatically for debug profiles. Leaving the field unset keeps the
 # default behaviour.
+
+[package.metadata.android.application.activity]
+# Lock to portrait — the current layout has only been designed and tested
+# in portrait orientation. Remove (or add a landscape layout) before
+# enabling auto-rotate.
+orientation = "portrait"