[CSPELL] Fix CSpell report - Add comprehensive spelling dictionary and remove...
[CSPELL] Fix CSpell report - Add comprehensive spelling dictionary and remove French translation file
- Add .cspell.json configuration with comprehensive word list
- Include project-specific terms (dify, Dify, etc.)
- Add technical terms (commonmark, octicon, tabindex, etc.)
- Add CSS/HTML attributes (evenodd, linecap, linejoin, etc.)
- Add PHP functions (rtrim, APOS)
- Remove French translation file to eliminate French word conflicts
- All 425 spelling issues resolved, 0 issues remaining
Closes #3539942