Update Dockerfile

Dockerfile

@@ -1,48 +1,27 @@
 FROM python:3.9
 
-# ----------------------------
-# System dependencies
-# ----------------------------
+# 1. Install system dependencies
 RUN apt-get update && apt-get install -y \
+    g++ \
+    libssl-dev \
     git \
     zip \
+    make \
     curl \
-    libssl-dev \
-    ca-certificates \
+    pkg-config \
     && rm -rf /var/lib/apt/lists/*
 
-# ----------------------------
-# Install prebuilt zsign (ZERO BUILD RISK)
-# ----------------------------
-# We avoid compiling from source completely.
-# Instead we download a known working binary if available.
-# If download fails, container still builds (safe fallback).
-
-RUN mkdir -p /opt/zsign && \
-    curl -L -o /usr/local/bin/zsign \
-    https://github.com/zhlynn/zsign/releases/latest/download/zsign-linux || true && \
-    chmod +x /usr/local/bin/zsign || true
-
-# ----------------------------
-# Verify fallback (optional safety)
-# ----------------------------
-RUN if ! command -v zsign; then \
-        echo "zsign not found, using fallback build method"; \
-        git clone https://github.com/zhlynn/zsign.git /opt/zsign && \
-        cd /opt/zsign && \
-        make -C . || true && \
-        find . -type f -name "zsign" -exec cp {} /usr/local/bin/zsign \; || true ; \
-    fi
+# 2. Build zsign (old style, fixed path)
+RUN git clone https://github.com/zhlynn/zsign.git /opt/zsign && \
+    cd /opt/zsign && \
+    make && \
+    find . -type f -name "zsign" -exec cp {} /usr/local/bin/zsign \;
 
-# ----------------------------
-# App setup
-# ----------------------------
+# 3. Setup App
 WORKDIR /app
 COPY . .
 
-RUN pip install --no-cache-dir flask flask-cors gunicorn
+RUN pip install flask flask-cors gunicorn
 
-# ----------------------------
-# Start server
-# ----------------------------
+# 4. Start (IMPORTANT: correct JSON format)
 CMD ["gunicorn", "app:app", "--bind", "0.0.0.0:7860", "--workers", "1", "--timeout", "600"]