UI enhancemnts

Dockerfile.api

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+FROM node:22-alpine
+WORKDIR /app
+
+# Install all deps (tsx is needed at runtime for ESM + TypeScript)
+COPY package*.json ./
+RUN npm ci
+
+# Copy source
+COPY bin/ ./bin/
+COPY server/ ./server/
+COPY tsconfig*.json ./
+
+# SQLite database lives here — mount a volume at /app/data in compose
+RUN mkdir -p /app/data
+ENV DB_PATH=/app/data/market-screener.db
+ENV NODE_ENV=production
+EXPOSE 3000
+
+CMD ["npx", "tsx", "bin/server.ts"]