Really huge mass update; Getting everything up-to-spec and implementing a wide range of features

Dockerfile

@@ -8,7 +8,7 @@ WORKDIR /app
 COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
 COPY frontend/package.json ./frontend/
 COPY backend/package.json ./backend/
-COPY prisma/ ./prisma/
+COPY prisma/schema.prisma ./prisma/schema.prisma
 
 # corepack activates the exact pnpm version declared in package.json#packageManager.
 # This is hash-verified (sha1) and prevents newer pnpm from applying different
@@ -17,28 +17,33 @@ COPY prisma/ ./prisma/
 RUN corepack enable && corepack install && \
     pnpm install --frozen-lockfile
 
-# Stage 2: Build frontend
+# Stage 2: Prune runtime dependencies
+FROM deps AS prod-deps
+COPY prisma/ ./prisma/
+RUN CI=true pnpm prune --prod
+
+# Stage 3: Build frontend
 FROM deps AS frontend-builder
 COPY frontend/ ./frontend/
 RUN pnpm --filter pp-frontend run build
 
-# Stage 3: Build backend + Prisma client
+# Stage 4: Build backend + Prisma client
 FROM deps AS backend-builder
 COPY backend/ ./backend/
+COPY prisma/ ./prisma/
 RUN pnpm --filter pp-backend run generate && \
-    pnpm --filter pp-backend run build
+    pnpm --filter pp-backend run build:prod
 
-# Stage 4: Minimal production runner
+# Stage 5: Minimal production runner
 FROM node:24-alpine AS runner
 WORKDIR /app
 RUN apk add --no-cache openssl
+ENV NODE_PATH=/app/node_modules/.pnpm/node_modules
 
-# Root node_modules contains prisma CLI and hoisted deps; backend node_modules has
-# the backend-specific symlinks. Both are needed at runtime.
-COPY --from=backend-builder /app/node_modules ./node_modules
+COPY --from=prod-deps /app/node_modules ./node_modules
+COPY --from=prod-deps /app/backend/node_modules ./backend/node_modules
+COPY --from=prod-deps /app/backend/package.json ./backend/package.json
 COPY --from=backend-builder /app/backend/dist ./backend/dist
-COPY --from=backend-builder /app/backend/node_modules ./backend/node_modules
-COPY --from=backend-builder /app/backend/package.json ./backend/package.json
 COPY --from=frontend-builder /app/frontend/dist ./frontend/dist
 COPY prisma/ ./prisma/
 
@@ -46,4 +51,4 @@ WORKDIR /app/backend
 
 EXPOSE 5000
 
-CMD sh -c "../node_modules/.bin/prisma migrate deploy --schema=../prisma/schema.prisma && node dist/index.js"
+CMD sh -c "../node_modules/.pnpm/node_modules/.bin/prisma migrate deploy --schema=../prisma/schema.prisma && node dist/index.js"