Fix GGUF filename in environment variable and update comment in requirements

gguf_transformers_backend.py

@@ -65,7 +65,7 @@ class HealthResponse(BaseModel):
 
 # Global variables for model management
 current_model = os.environ.get("AI_MODEL", "unsloth/gemma-3n-E4B-it-GGUF")
-gguf_filename = os.environ.get("GGUF_FILE", "*Q4_K_M.gguf")
+gguf_filename = os.environ.get("GGUF_FILE", "gemma-3n-E4B-it-Q4_K_M.gguf")
 tokenizer = None
 model = None
 text_pipeline = None

requirements.txt

@@ -12,7 +12,7 @@ transformers>=4.45.0
 torch>=2.0.0
 accelerate
 
-# Required dependencies for GGUF model loading
+# Required for GGUF model loading
 protobuf
 sentencepiece>=0.2.0
 tokenizers