Sell PRO as an in-app unlock, take shared photos, and let FX run negative

- One free Play app (com.locphamtran.recipescamera) with an expo-iap PRO
  unlock, replacing the paid apk for the store channel
- Android SEND/SEND_MULTIPLE share target feeds photos into the editor,
  on cold start and on resume
- BACK button in the TopBar and press-and-hold PEEK replace the chip row
- NOISE REDUCTION and SHARPENING accept -10: a negative SHARPENING softens
  the frame before the grain pass, a negative NOISE REDUCTION re-grains it,
  in the Skia engine, the live preview and the Kotlin export path alike

src/components/RecipeCreateModal.tsx

@@ -286,8 +286,8 @@ export default function RecipeCreateModal({
       highlight: int(fHigh, simAdj.highlight, -10, 10),
       shadow: int(fShadow, simAdj.shadow, -10, 10),
       saturation: int(fColor, simAdj.saturation, -10, 10),
-      denoise: int(fNr, simAdj.denoise, 0, 10),
-      sharpening: int(fSharp, simAdj.sharpening, 0, 10),
+      denoise: int(fNr, simAdj.denoise, -10, 10),
+      sharpening: int(fSharp, simAdj.sharpening, -10, 10),
       clarity: int(fClarity, simAdj.clarity, -10, 10),
       grain: int(grain, seedAdj.grain, 0, 10),
       colorChrome: cc as ColorAdjustments['colorChrome'],
@@ -313,8 +313,8 @@ export default function RecipeCreateModal({
     { label: 'HIGHLIGHT', value: fHigh, set: setFHigh },
     { label: 'SHADOW', value: fShadow, set: setFShadow },
     { label: 'COLOR', value: fColor, set: setFColor },
-    { label: 'NOISE RED.', value: fNr, set: setFNr, ph: '0-10' },
-    { label: 'SHARPENING', value: fSharp, set: setFSharp, ph: '0-10' },
+    { label: 'NOISE RED.', value: fNr, set: setFNr, ph: '-10..10' },
+    { label: 'SHARPENING', value: fSharp, set: setFSharp, ph: '-10..10' },
     { label: 'CLARITY', value: fClarity, set: setFClarity },
     { label: 'EXPOSURE COMP.', value: fEv, set: setFEv, ph: 'EV' },
   ];