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/utils/paramDefs.ts

@@ -14,6 +14,9 @@ export interface ContinuousParamDef {
   display: (v: number) => string;
   get: (a: ColorAdjustments) => number;
   set: (v: number) => Partial<ColorAdjustments>;
+  // PRO-only knob: the LITE build greys the chip out (PRO corner tag) and
+  // cannot open its row, so the value stays at its default there.
+  pro?: boolean;
 }
 
 const sign = (v: number) => (v > 0 ? `+${v}` : String(v));
@@ -174,7 +177,8 @@ export const PARAM_DEFS: {
     },
     {
       key: 'hdf',
-      label: 'LIGHT GLOW',
+      label: 'HDF EFFECT',
+      pro: true,
       min: 0,
       max: 10,
       step: 1,