MVP-1: helpdesk core with dashboard, Telegram channel, customer portal

Next.js 16 + Drizzle/SQLite (matching ~/project-claude conventions), SSE-based
realtime updates, admin dashboard with status columns, ticket thread view,
Telegram long-polling integration (inbound + outbound), token-based customer
portal, Docker Compose packaging.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QcXH24ky6zjk2UyK5oZUPH

Dockerfile

@@ -0,0 +1,22 @@
+FROM node:20-bookworm-slim
+
+# python3/make/g++ let npm fall back to compiling better-sqlite3/argon2 from
+# source if no prebuilt binary matches this platform.
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    python3 make g++ ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+COPY package.json package-lock.json ./
+RUN npm ci
+
+COPY . .
+RUN npm run build
+
+ENV NODE_ENV=production
+EXPOSE 8081
+
+# Migrate the (volume-mounted) SQLite DB and bootstrap the admin account on
+# every start — both are no-ops once already applied.
+CMD ["sh", "-c", "npm run db:migrate && npm run bootstrap-admin && npm start"]