Update Dockerfile

Dockerfile

@@ -1,20 +1,47 @@
 FROM python:3.11-slim
 
-# 系统依赖（Tesseract + 语言包 + Ghostscript + qpdf 等）
+# ========= 系统环境变量（必须在 import streamlit 之前生效） =========
+# 把 HOME 等全部指向 /tmp（可写目录）
+ENV HOME=/tmp
+ENV XDG_CACHE_HOME=/tmp
+ENV STREAMLIT_CACHE_DIR=/tmp
+ENV STREAMLIT_GLOBAL_DATA_DIR=/tmp
+ENV STREAMLIT_RUNTIME_DIR=/tmp
+ENV STREAMLIT_CONFIG_DIR=/tmp/.streamlit
+ENV STREAMLIT_BROWSER_GATHER_USAGE_STATS=false
+
+# 创建必要目录
+RUN mkdir -p /tmp/.streamlit
+
+# ========= 安装系统依赖 =========
+# Tesseract OCR + 中文包 + PDF 处理工具
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    tesseract-ocr tesseract-ocr-eng tesseract-ocr-chi-sim \
-    ghostscript qpdf pngquant unpaper icc-profiles-free \
-    libmagic1 ca-certificates && \
+    tesseract-ocr \
+    tesseract-ocr-eng \
+    tesseract-ocr-chi-sim \
+    ghostscript \
+    qpdf \
+    pngquant \
+    unpaper \
+    icc-profiles-free \
+    libmagic1 \
+    ca-certificates && \
     rm -rf /var/lib/apt/lists/*
 
+# ========= 安装 Python 依赖 =========
 WORKDIR /app
 COPY requirements.txt /app/requirements.txt
 RUN pip install --no-cache-dir -r requirements.txt
 
+# ========= 复制应用代码 =========
 COPY app.py /app/app.py
 COPY README.md /app/README.md
 
+# ========= 容器启动配置 =========
 EXPOSE 7860
 ENV STREAMLIT_SERVER_PORT=7860
 ENV STREAMLIT_SERVER_ADDRESS=0.0.0.0
+# 禁止 Streamlit 自动打开浏览器（Spaces 环境也不会）
+ENV STREAMLIT_BROWSER_SERVER_ADDRESS=0.0.0.0
+
 CMD ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]