Ship HDF EFFECT to PRO only, and clean the build for Play

Rename LIGHT GLOW to HDF EFFECT and gate it behind PRO: LITE renders the
chip greyed out with a PRO tag and cannot open its slider; restoration of
older settings that carry hdf > 0 still blocks export in LITE.

Play/licence pass:
- drop unused permissions (ACTIVITY_RECOGNITION, READ_MEDIA_AUDIO/VIDEO,
  SYSTEM_ALERT_WINDOW) and requestLegacyExternalStorage
- rename the Leica sims to LC STREETLIFE CLASSIC/VIVID, drop the brand from
  comments; fix app name text, canvaskit copyright, LICENSE owner
- remove expo-image-picker and expo-sensors (no JS import), delete dead
  exports (computeMatrixTint, cinemaSeasonName, base64 helpers,
  formatCoordinate)
- versionCode 3 / versionName 1.2.1, drop the personal email from About
- add docs/privacy-policy.html for the Play listing

Size: R8 + shrinkResources + bundle compression + ABI trim, 161 MB -> 76 MB.

src/components/PhotoViewerModal.tsx

@@ -72,13 +72,13 @@ export default function PhotoViewerModal({
       if (await Sharing.isAvailableAsync()) {
         await Sharing.shareAsync(photo.uri, {
           mimeType: 'image/jpeg',
-          dialogTitle: `Share with CamRecipe Pro - Preset: ${photo.recipeName}`,
+          dialogTitle: `Share with RecipesCam - Preset: ${photo.recipeName}`,
           UTI: 'public.jpeg',
         });
       } else {
         await Share.share({
           url: photo.uri,
-          message: `Captured with CamRecipe Pro - Preset: ${photo.recipeName}`,
+          message: `Captured with RecipesCam - Preset: ${photo.recipeName}`,
         });
       }
     } catch (error) {