Production deploy setup + finish AppForge rebrand

- Backend now serves the built frontend (dist) + SPA fallback for single-service deploy
- Schema applied idempotently on boot (ensureSchema) + working db:push script
- Add Dockerfile + .dockerignore + start script
- Footer credit removed; default app name -> AppForge; docs/package.json de-attributed

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,26 @@
+# AppForge — single-service production image
+# Builds the Vite frontend and runs the Express backend, which serves both the
+# API (/api), uploaded files (/storage), and the built frontend (SPA).
+
+FROM node:20-bookworm-slim
+
+WORKDIR /app
+
+# System deps occasionally needed by build tooling
+RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install dependencies (full install — tsx/vite are needed for build & runtime)
+COPY package.json package-lock.json ./
+RUN npm ci
+
+# Copy source and build the frontend
+COPY . .
+RUN npm run build
+
+ENV NODE_ENV=production
+ENV PORT=3000
+EXPOSE 3000
+
+# The server applies the DB schema on boot (idempotent) and serves everything
+CMD ["npm", "run", "start"]