Replaces mock integration data in Settings.tsx with live calls to
api.listIntegrations/createIntegration/updateIntegration/testIntegration.
Also fixes apiFetch sending Content-Type: application/json on bodyless
requests, which made Fastify reject Test Connection calls with 400.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BbJV5nm8KPVH1oNJYKpnoF
- Profile section: click avatar to upload a personal photo (FileReader
preview, hover camera icon overlay), replacing static initials
- README.md rewritten with project-specific page status table, dev
setup, tech stack, and deployment notes
- design-decisions.md: add Settings Page subsection documenting layout,
section-switching, and the avatar upload technique
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BbJV5nm8KPVH1oNJYKpnoF
