fix(runtime): use /data for uploads/results and write Firebase creds to /data; set DATA_DIR and OMP_NUM_THREADS

Dockerfile

@@ -24,13 +24,14 @@ RUN pip install --no-cache-dir -r requirements.txt
 COPY . .
 
 # Create directories for uploads and results
-RUN mkdir -p uploads results
+# Ensure writable data directory exists for Spaces
+RUN mkdir -p /data/uploads /data/results
 
 # Handle Firebase credentials from environment variable (for Hugging Face Spaces secrets)
 # This allows the credentials to be passed as a secret and written to file at runtime
 RUN echo '#!/bin/bash' > /entrypoint.sh && \
     echo 'if [ -n "$FIREBASE_CREDENTIALS" ]; then' >> /entrypoint.sh && \
-    echo '  echo "$FIREBASE_CREDENTIALS" > colorize-662df-firebase-adminsdk-fbsvc-e080668793.json' >> /entrypoint.sh && \
+    echo '  echo "$FIREBASE_CREDENTIALS" > /data/firebase-adminsdk.json' >> /entrypoint.sh && \
     echo 'fi' >> /entrypoint.sh && \
     echo 'exec "$@"' >> /entrypoint.sh && \
     chmod +x /entrypoint.sh
@@ -42,6 +43,8 @@ EXPOSE 7860
 ENV PYTHONUNBUFFERED=1
 ENV BASE_URL=${SPACE_HOST}
 ENV PORT=7860
+ENV DATA_DIR=/data
+ENV OMP_NUM_THREADS=1
 
 # Health check
 HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \

app/main.py

@@ -61,16 +61,10 @@ else:
     except:
         pass
 
-# Create writable directories (prefer under user home unless overridden)
-def _resolve_dir(path_str: str, default_subdir: str) -> Path:
-    p = Path(path_str).expanduser()
-    if not p.is_absolute():
-        # Place relative paths under ~/data to avoid permission issues
-        p = Path.home() / "data" / default_subdir
-    return p
-
-UPLOAD_DIR = _resolve_dir(os.getenv("UPLOAD_DIR", settings.UPLOAD_DIR), "uploads")
-RESULT_DIR = _resolve_dir(os.getenv("RESULT_DIR", settings.RESULT_DIR), "results")
+# Always use /data in Spaces (writable). Allow override via env.
+DATA_ROOT = Path(os.getenv("DATA_DIR", "/data"))
+UPLOAD_DIR = Path(os.getenv("UPLOAD_DIR", str(DATA_ROOT / "uploads")))
+RESULT_DIR = Path(os.getenv("RESULT_DIR", str(DATA_ROOT / "results")))
 UPLOAD_DIR.mkdir(parents=True, exist_ok=True)
 RESULT_DIR.mkdir(parents=True, exist_ok=True)
 logger.info("Storage directories -> uploads: %s, results: %s", str(UPLOAD_DIR), str(RESULT_DIR))