Fix Docker build: add .npmrc for Tremor peer dep conflict

@tremor/react@3.18.7 requires react@^18 but project uses react@19.
Adding .npmrc with legacy-peer-deps=true and copying it in Dockerfiles
so npm ci resolves correctly. Also fix implicit any in seed file.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker/Dockerfile.dev

@@ -10,7 +10,7 @@ WORKDIR /app
 RUN apk add --no-cache libc6-compat openssl
 
 # Copy package files
-COPY package.json package-lock.json* ./
+COPY package.json package-lock.json* .npmrc* ./
 
 # Install dependencies
 RUN npm install && npm install tailwindcss-animate