feat: add camera permission error (#485)

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 This PR adds a new camera permission error code. 

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<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Low risk: adds a new error enum value and a corresponding mobile
mapping plus tests/changelog, without altering existing mapping
behavior.
> 
> **Overview**
> Adds a new `ErrorCode.PermissionCameraDenied` (value `7301`) to
represent mobile camera permission failures.
> 
> Extends `MOBILE_ERROR_MAPPINGS` with `CAMERA_PERMISSION_DENIED`,
including severity/category and a user-facing message for QR scanning,
and adds a unit test to assert the new mapping. Updates the `CHANGELOG`
to document the addition.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
11200d0. This will update automatically
on new commits. Configure
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<!-- /CURSOR_SUMMARY -->

Author: montelaidev

packages/hw-wallet-sdk/CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Add `PermissionCameraDenied` error code and `CAMERA_PERMISSION_DENIED` mapping for mobile camera permission handling
+
 ## [0.6.0]
 
 ### Added

packages/hw-wallet-sdk/src/hardware-error-mappings.test.ts

@@ -228,6 +228,14 @@ describe('HARDWARE_ERROR_MAPPINGS', () => {
       expect(mapping.category).toBe(Category.DeviceState);
     });
 
+    it('maps CAMERA_PERMISSION_DENIED correctly', () => {
+      const mapping = errorMappings.CAMERA_PERMISSION_DENIED;
+      expect(mapping.code).toBe(ErrorCode.PermissionCameraDenied);
+      expect(mapping.severity).toBe(Severity.Err);
+      expect(mapping.category).toBe(Category.Configuration);
+      expect(mapping.userMessage).toContain('Camera');
+    });
+
     it('has valid structure for all mappings', () => {
       Object.values(errorMappings).forEach((mapping) => {
         expect(mapping).toHaveProperty('code');

packages/hw-wallet-sdk/src/hardware-error-mappings.ts

@@ -212,6 +212,14 @@ export const BLE_ERROR_MAPPINGS = {
 };
 
 export const MOBILE_ERROR_MAPPINGS = {
+  CAMERA_PERMISSION_DENIED: {
+    code: ErrorCode.PermissionCameraDenied,
+    message: 'Camera permission denied',
+    severity: Severity.Err,
+    category: Category.Configuration,
+    userMessage:
+      'Camera permission is required to scan QR codes. Please enable it in your device settings.',
+  },
   NOT_SUPPORTED: {
     code: ErrorCode.MobileNotSupported,
     message: 'Operation not supported on mobile',

packages/hw-wallet-sdk/src/hardware-errors-enums.ts

@@ -57,6 +57,7 @@ export enum ErrorCode {
   BluetoothScanFailed = 7101,
   BluetoothConnectionFailed = 7102,
   MobileNotSupported = 7300,
+  PermissionCameraDenied = 7301,
 
   // Transaction
   TxInsufficientFunds = 10000,