feat(ci): socket realtime image for hosting (#565)

* feat: socket server for self/local deployment

* ci: memory limit and redundant dependency install

* chore: update readme, devcontainer, cli package

* chore: add new dev scripts and update README for full development setup

docker/realtime.Dockerfile

@@ -0,0 +1,51 @@
+# ========================================
+# Base Stage: Alpine Linux with Bun
+# ========================================
+FROM oven/bun:alpine AS base
+
+# ========================================
+# Dependencies Stage: Install Dependencies
+# ========================================
+FROM base AS deps
+RUN apk add --no-cache libc6-compat
+WORKDIR /app
+
+# Install turbo globally
+RUN bun install -g turbo
+
+COPY package.json bun.lock ./
+RUN mkdir -p apps
+COPY apps/sim/package.json ./apps/sim/package.json
+
+RUN bun install --omit dev --ignore-scripts
+
+# ========================================
+# Builder Stage: Build the Application
+# ========================================
+FROM base AS builder
+WORKDIR /app
+
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+
+# ========================================
+# Runner Stage: Run the Socket Server
+# ========================================
+FROM base AS runner
+WORKDIR /app
+
+ENV NODE_ENV=production
+
+# Copy the entire sim app since socket-server has dependencies on other modules
+COPY --from=builder /app/apps/sim ./apps/sim
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/package.json ./package.json
+
+# Expose socket server port (default 3002, but configurable via PORT env var)
+EXPOSE 3002
+ENV PORT=3002 \
+    SOCKET_PORT=3002 \
+    HOSTNAME="0.0.0.0"
+
+# Run the socket server directly
+CMD ["bun", "apps/sim/socket-server/index.ts"]