fix(dashboard): downgrade Vite to v6.2.6 to resolve peer dependency conflict

[NamTheGreat]

Problem

docker compose -f docker-compose.dev.yml up -d fails during the dashboard service build with an ERESOLVE peer dependency conflict.

Error:
npm error While resolving: @vitejs/plugin-react@5.1.4
npm error Found: vite@8.0.13
npm error Could not resolve dependency:
npm error peer vite@"^4.2.0 || ^5.0.0 || ^6.0.0 || ^7.0.0" from @vitejs/plugin-react@5.1.4

@vitejs/plugin-react@5.1.4 does not support Vite 8, causing npm ci to abort.

Solution

• Downgrade vite from ^8.0.13 to ^6.2.6 (compatible with @vitejs/plugin-react@5.1.4)
• Switch dashboard/Dockerfile from RUN npm ci to RUN npm install to regenerate the lock file cleanly after deleting the stale package-lock.json

Changes

• dashboard/package.json: "vite": "^8.0.13" -> "vite": "^6.2.6"
• dashboard/Dockerfile: RUN npm ci -> RUN npm install

Verification

• docker compose -f docker-compose.dev.yml up -d --build now completes successfully
• Dashboard loads correctly at http://localhost:2886

Related

Fixes #123