InvalidFileTypeError not mapped in GraphQL error-map + HEIC not in allowed content types

[islandbitcoin]

Bug Report

Summary

Two related bugs in the account upgrade ID document upload flow:

Bug 1 — InvalidFileTypeError not mapped in error-map.ts

src/graphql/error-map.ts has no case for InvalidFileTypeError, so it falls through to assertUnreachable() which throws:

Error: This should never compile with InvalidFileTypeError

This surfaces to the mobile client as a cryptic ApolloError instead of a user-friendly validation message.

File: src/graphql/error-map.ts
Fix: Add a case for InvalidFileTypeError that returns a ValidationInternalError with the existing descriptive message from the error class (Invalid file type: X. Allowed: image/jpeg, image/png, image/webp).

Bug 2 — image/heic not in ALLOWED_CONTENT_TYPES

iOS devices (and the iOS simulator via react-native-image-picker) return image/heic as the content type for photos. The backend only accepts ["image/jpeg", "image/png", "image/webp"], rejecting all HEIC uploads.

File: src/services/storage/index.ts line 16
Fix: Add "image/heic" to ALLOWED_CONTENT_TYPES.

Impact

The account upgrade flow ID document upload is completely broken on iOS — every photo library selection fails with the cryptic error above.

Reproduction

1. Build feat/business-account branch on iOS simulator
2. Go through account upgrade flow to Pro/Merchant
3. Attempt to upload an ID document from photo library
4. → ApolloError: This should never compile with InvalidFileTypeError

Related

• PR #400 (feat/business-account) — account upgrade flow
• src/services/storage/errors.ts — InvalidFileTypeError class definition
• src/services/storage/index.ts — isValidContentType() function