alterações de melhorias

Dockerfile

@@ -0,0 +1,78 @@
+# Chatc2 — Dockerfile
+# Multi-stage: build (whisper.cpp compilação) + runtime (Node + Firebird client)
+#
+# Build:
+#   docker build -t chatc2 .
+#
+# Run (com docker-compose):
+#   docker compose up -d
+
+# ============================================================
+# STAGE 1: Compilar whisper.cpp
+# ============================================================
+FROM alpine:3.20 AS whisper-builder
+
+RUN apk add --no-cache git make g++ cmake
+
+WORKDIR /build
+RUN git clone --depth 1 https://github.com/ggerganov/whisper.cpp.git && \
+    cd whisper.cpp && \
+    cmake -B build && \
+    cmake --build build --config Release -j $(nproc)
+
+# Baixa modelo tiny
+RUN cd /build/whisper.cpp && \
+    mkdir -p models && \
+    wget -q -O models/ggml-tiny.bin https://huggingface.co/ggerganov/whisper.cpp/resolve/main/ggml-tiny.bin
+
+# ============================================================
+# STAGE 2: Runtime Node.js
+# ============================================================
+FROM node:22-alpine
+
+# Dependências do sistema: Firebird client, ffmpeg
+RUN apk add --no-cache \
+    firebird-dev \
+    ffmpeg \
+    cmake \
+    make \
+    g++ \
+    python3
+
+WORKDIR /app
+
+# Copia package.json e instala dependências
+COPY package.json package-lock.json ./
+RUN npm ci --omit=dev && npm cache clean --force
+
+# Copia código fonte
+COPY src/ ./src/
+COPY scripts/ ./scripts/
+COPY public/ ./public/
+
+# Copia whisper.cpp compilado e modelo
+COPY --from=whisper-builder /build/whisper.cpp/build/bin/main /app/whisper/main
+COPY --from=whisper-builder /build/whisper.cpp/models/ggml-tiny.bin /app/whisper/models/ggml-tiny.bin
+
+# Copia configuração PM2
+COPY ecosystem.config.js ./
+
+# Diretórios de runtime
+RUN mkdir -p /app/db /app/logs /app/uploads/audio /app/tmp
+
+# Variáveis padrão (sobrescrever no docker-compose ou .env)
+ENV PORT=3000 \
+    NODE_ENV=production \
+    DB_HOST=firebird \
+    DB_PORT=3050 \
+    DB_DATABASE=/app/db/NOVO.FDB \
+    DB_USER=SYSDBA \
+    DB_PASSWORD=masterkey
+
+EXPOSE 3000
+
+# Healthcheck
+HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
+  CMD wget -qO- http://localhost:3000/api/novo_local/health || exit 1
+
+CMD ["node", "src/server.js"]