build(docker): optimize image build workflow

Dockerfile

@@ -3,19 +3,23 @@ WORKDIR /app
 
 ENV NEXT_TELEMETRY_DISABLED=1
 ENV PNPM_HOME=/pnpm
+ENV PNPM_STORE_PATH=/pnpm/store
 ENV PATH=$PNPM_HOME:$PATH
 
 RUN apk add --no-cache libc6-compat \
   && corepack enable \
-  && corepack prepare pnpm@10.30.3 --activate
+  && corepack prepare pnpm@10.30.3 --activate \
+  && pnpm config set store-dir "$PNPM_STORE_PATH"
 
 FROM base AS deps
 COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
-RUN pnpm install --frozen-lockfile
+RUN --mount=type=cache,id=cozsweet-pnpm-store,target=/pnpm/store,sharing=locked \
+  pnpm install --frozen-lockfile --prefer-offline
 
 FROM base AS prod-deps
 COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
-RUN pnpm install --prod --frozen-lockfile
+RUN --mount=type=cache,id=cozsweet-pnpm-store,target=/pnpm/store,sharing=locked \
+  pnpm install --prod --frozen-lockfile --prefer-offline
 
 FROM base AS builder
 ARG NEXT_ENV_FILE=.env.local
@@ -26,6 +30,7 @@ COPY --from=deps /app/node_modules ./node_modules
 COPY . .
 
 RUN --mount=type=secret,id=next_env,target=/tmp/next_env,required=false \
+  --mount=type=cache,id=cozsweet-next-cache,target=/app/.next/cache,sharing=locked \
   if [ -f /tmp/next_env ]; then cp /tmp/next_env "$NEXT_ENV_FILE"; fi; \
   pnpm run build; \
   rm -f .env .env.local .env.development .env.production