Both pages were showing hardcoded mock data (PDFs, TMX, DOCX files).
Now they:
- Fetch real data from /files/tm and /files/reference endpoints
- Accept .json/.jsonl uploads (not PDF/TMX)
- Support delete with confirmation
- Auto-select Amazon as the default client
- Show proper upload dialogs with locale/channel/file-type selectors
- Fixed api.ts functions to pass client_id, channel, file_type as
query params (matching backend expectations)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>