fix errors

.gitignore

@@ -0,0 +1,149 @@
+# Environment variables
+.env
+.env.local
+.env.*.local
+
+# Database
+db.*
+*.sqlite3
+*.db
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# pipenv
+Pipfile.lock
+
+# PEP 582
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+venv/
+env/
+ENV/
+env.bak/
+venv.bak/
+.venv
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# IDEs
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db

Dockerfile

@@ -19,6 +19,9 @@ RUN pip install --upgrade pip
 # Install Python dependencies
 RUN pip install --no-cache-dir -r requirements.txt
 
+# Install specific transformers
+RUN pip install git+https://github.com/huggingface/transformers@8fb854cac869b42c87a7bd15d9298985c5aea96e
+
 # Copy the entire backend directory
 COPY . .
 

agent_manager/__init__.py

@@ -17,7 +17,31 @@ import uuid
 # Load environment variables from .env file
 load_dotenv()
 
-API_KEY = os.environ["HUGGINGFACEHUB_API_TOKEN"]
+# Try multiple environment variable names for HuggingFace token
+API_KEY = (
+    os.environ.get("HUGGINGFACEHUB_API_TOKEN") or
+    os.environ.get("HF_TOKEN") or
+    os.environ.get("HF_API_TOKEN")
+)
+
+if not API_KEY:
+    raise ValueError(
+        "HuggingFace API token not found. Please set one of the following environment variables:\n"
+        "  - HUGGINGFACEHUB_API_TOKEN (preferred)\n"
+        "  - HF_TOKEN\n"
+        "  - HF_API_TOKEN\n\n"
+        "Get your token from: https://huggingface.co/settings/tokens\n"
+        "Make sure to create a .env file in the backend directory with your token."
+    )
+
+if not API_KEY.strip():
+    raise ValueError(
+        "HuggingFace API token is empty. Please check your .env file or environment variables."
+    )
+
+# Set HF_TOKEN for huggingface-hub library compatibility
+os.environ["HF_TOKEN"] = API_KEY
+
 SYSTEM_PROMPT = """
 You are an expert linguistic assistant specializing in grammar correction and translation. Your responses must always be accurate, concise, clear, and easy to understand.
 
@@ -114,6 +138,8 @@ MODEL = HuggingFaceEndpoint(
     huggingfacehub_api_token=API_KEY
 )
 
+
+
 CHAT = ChatHuggingFace(llm=MODEL).with_structured_output(schema=Response, method='json_schema')
 STRUCTURED_CHAT = StructuredChatWrapper(CHAT)
 

backend/settings.py

@@ -37,7 +37,7 @@ ALLOWED_HOSTS = [
 ] if os.environ.get("ALLOWED_HOSTS") else []
 
 CORS_ALLOW_CREDENTIALS = True
-CORS_ALLOW_ALL_ORIGINS = [os.environ.get("CORS_ALLOW_ALL_ORIGINS", "").strip()] if os.environ.get("CORS_ALLOW_ALL_ORIGINS") is not None else True
+CORS_ALLOW_ALL_ORIGINS = os.environ.get("CORS_ALLOW_ALL_ORIGINS", "True") == "True"
 
 
 SESSION_COOKIE_HTTPONLY = True

requirements.txt

@@ -53,7 +53,6 @@ tenacity==9.1.2
 tokenizers==0.22.1
 torch==2.9.0
 tqdm==4.67.1
-transformers @ git+https://github.com/huggingface/transformers@8fb854cac869b42c87a7bd15d9298985c5aea96e
 typer-slim==0.20.0
 typing-inspection==0.4.2
 typing_extensions==4.15.0