feat(auth): add web captcha handling

- replace manual captcha screen with WebView-based VK captcha flow
- handle captcha error 14 by showing the captcha overlay and retrying with success_token
- pass captcha redirect/result state through AppSettings
- remove old captcha ViewModel, navigation, validation, and DI
- add ACRA crash reporting
- add WIP message edit mode UI/state
- update Gradle wrapper, SDK config, and dependencies

core/data/src/main/kotlin/dev/meloda/fast/data/api/oauth/OAuthRepository.kt

@@ -23,5 +23,6 @@ interface OAuthRepository {
         validationCode: String?,
         captchaSid: String?,
         captchaKey: String?,
+        successToken: String?
     ): ApiResult<GetSilentTokenResponse, OAuthErrorDomain>
 }

core/data/src/main/kotlin/dev/meloda/fast/data/api/oauth/OAuthRepositoryImpl.kt

@@ -79,7 +79,8 @@ class OAuthRepositoryImpl(
                     VkOAuthError.NEED_CAPTCHA -> {
                         OAuthErrorDomain.CaptchaRequiredError(
                             captchaSid = response.captchaSid.orEmpty(),
-                            captchaImageUrl = response.captchaImage.orEmpty()
+                            captchaImageUrl = response.captchaImage.orEmpty(),
+                            redirectUri = response.redirectUri
                         )
                     }
 
@@ -122,6 +123,7 @@ class OAuthRepositoryImpl(
         validationCode: String?,
         captchaSid: String?,
         captchaKey: String?,
+        successToken: String?
     ): ApiResult<GetSilentTokenResponse, OAuthErrorDomain> =
         withContext(Dispatchers.IO) {
             val requestModel = AuthDirectRequest(
@@ -135,6 +137,7 @@ class OAuthRepositoryImpl(
                 validationCode = validationCode,
                 captchaSid = captchaSid,
                 captchaKey = captchaKey,
+                successToken = successToken
             )
 
             oAuthService.getSilentToken(requestModel.map).mapResult(
@@ -175,7 +178,8 @@ class OAuthRepositoryImpl(
                         VkOAuthError.NEED_CAPTCHA -> {
                             OAuthErrorDomain.CaptchaRequiredError(
                                 captchaSid = response.captchaSid.orEmpty(),
-                                captchaImageUrl = response.captchaImage.orEmpty()
+                                captchaImageUrl = response.captchaImage.orEmpty(),
+                                redirectUri = response.redirectUri
                             )
                         }