Fix HF Spaces permissions: use /app/data for DB and set correct Docker permissions

.gitignore

@@ -1,5 +1,5 @@
 __pycache__/
 *.pyc
-fleet.db
+data/
 uploads/
 .DS_Store

Dockerfile

@@ -7,11 +7,13 @@ RUN pip install --no-cache-dir -r requirements.txt
 
 COPY . .
 
-# Create uploads directory and set permissions
+# Create uploads and data directory and set permissions
+# It is critical to set permissions for the directory containing the SQLite DB
+# because SQLite creates temporary journal files in that directory.
 RUN mkdir -p /app/uploads && \
+    mkdir -p /app/data && \
     chmod 777 /app/uploads && \
-    touch /app/fleet.db && \
-    chmod 777 /app/fleet.db
+    chmod 777 /app/data
 
 # Create a non-root user for security (recommended for HF Spaces)
 RUN useradd -m -u 1000 user

app.py

@@ -26,7 +26,9 @@ SILICONFLOW_BASE_URL = "https://api.siliconflow.cn/v1"
 os.makedirs(app.config['UPLOAD_FOLDER'], exist_ok=True)
 
 # Database Setup
-DB_PATH = 'fleet.db'
+DATA_DIR = 'data'
+os.makedirs(DATA_DIR, exist_ok=True)
+DB_PATH = os.path.join(DATA_DIR, 'fleet.db')
 
 def init_db():
     conn = sqlite3.connect(DB_PATH)