fix: use npm install in Docker so Alpine musl native bindings resolve

npm ci with a Windows-generated lockfile skips @libsql/linux-x64-musl
(optional native dep). Switching to npm install lets npm resolve the
correct platform-specific binary for the Alpine container. Also copy
node_modules into the runner stage so prisma db push and the libsql
native module are available at runtime.

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

Dockerfile

@@ -6,7 +6,7 @@ RUN apk add --no-cache libc6-compat openssl
 WORKDIR /app
 
 COPY package.json package-lock.json* ./
-RUN npm ci
+RUN npm install
 
 # Rebuild the source code only when needed
 FROM base AS builder
@@ -47,6 +47,7 @@ RUN chown nextjs:nodejs .next
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
 COPY --from=builder --chown=nextjs:nodejs /app/prisma ./prisma
+COPY --from=deps --chown=nextjs:nodejs /app/node_modules ./node_modules
 
 USER nextjs