Reapply "fix(ci):consolidate dashboard build workflow changes"

This reverts commit 53c989462a.

apps/start/Dockerfile

@@ -48,6 +48,7 @@ FROM --platform=$BUILDPLATFORM node:${NODE_VERSION}-slim AS base-build
 
 ENV COREPACK_INTEGRITY_KEYS=0
 
+# Keep C++ build tools ONLY in the native build stage
 RUN rm -f /usr/local/bin/pnpm /usr/local/bin/pnpx && npm install -g pnpm@10.6.2 && apt-get update && \
     apt-get install -y --no-install-recommends \
     ca-certificates \
@@ -96,20 +97,16 @@ COPY apps/start ./apps/start
 COPY packages ./packages
 COPY tooling ./tooling
 
-# Generate Prisma client and build the app
+# Generate Prisma client and build the app natively
 RUN pnpm --filter start run build
 
 # PROD - Install only production dependencies
 FROM base AS prod
 
-ENV npm_config_build_from_source=true
-
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    python3 \
-    make \
-    g++ && \
-    apt-get clean && \
-    rm -rf /var/lib/apt/lists/*
+# FIX:
+# Removed `npm_config_build_from_source`, `python3`, `make`, `g++`, and `pnpm rebuild`.
+# This allows pnpm to instantly download pre-compiled AMD64 binaries instead of forcing 
+# QEMU to cross-compile C++ code on your Raspberry Pi.
 
 WORKDIR /app
 COPY --from=build /app/package.json ./
@@ -131,16 +128,14 @@ COPY --from=build /app/packages/integrations/package.json ./packages/integration
 COPY --from=build /app/packages/sdks/_info/package.json ./packages/sdks/_info/
 COPY --from=build /app/patches ./patches
 
-# Install production dependencies only
+# Install production dependencies only (fetches prebuilt binaries fast)
 RUN pnpm install --frozen-lockfile --prod && \
-    pnpm rebuild && \
     pnpm store prune
 
 # FINAL - Minimal runtime image
 FROM base AS runner
 
 ENV NODE_ENV=production
-ENV npm_config_build_from_source=true
 
 WORKDIR /app