feat(init): add initial project scaffolding and database schema

- Add Dockerfile for multi-stage production build
- Add Drizzle configuration and initial migration for PostgreSQL schema
- Add project configuration files (.prettierrc, .prettierignore, .dockerignore)
- Define core database tables: assets, memberships, site_settings

Dockerfile

@@ -0,0 +1,27 @@
+# ---- Build Stage ----
+FROM node:22-alpine AS builder
+
+WORKDIR /app
+
+COPY package.json package-lock.json ./
+RUN npm ci --ignore-scripts
+
+COPY . .
+
+RUN npm run build
+
+# ---- Production Stage ----
+FROM node:22-alpine AS runner
+
+WORKDIR /app
+
+COPY --from=builder /app/package.json /app/package-lock.json ./
+COPY --from=builder /app/build ./build
+COPY --from=builder /app/node_modules ./node_modules
+
+ENV NODE_ENV=production
+ENV PORT=3000
+
+EXPOSE 3000
+
+CMD ["node", "build/index.js"]