feat(i18n): add complete Spanish translations for 744 keys in es.json
Translated all UI text, labels, messages, error messages, and descriptions
from English placeholders to proper Spanish. Preserved:
- Brand names (DocuElevate, Dropbox, Google Drive, OneDrive, Amazon S3, etc.)
- Proper names (Christian Krakau-Louis)
- Technical abbreviations (IP, ID, ENV, API, OCR, FTP, SFTP, IMAP, SMTP)
- Native language names (language.* keys)
- Placeholder variables ({name}, {count}, {query}, {year}, etc.)
- Numeric error codes (404, 500)
Result: 901 keys total, 0 missing keys, only 55 language-neutral
same-value keys remaining (all correctly untranslated).
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
copilot-swe-agent[bot]
5ab7226f1a