adding vectorization variables to config like chunk size and model name

src/ctp_slack_bot/core/config.py

@@ -13,6 +13,13 @@ class Settings(BaseSettings):
     API_HOST: str = "0.0.0.0"
     API_PORT: int = 8000
     DEBUG: bool = False
+
+    # Vectorization Configuration
+    EMBEDDING_MODEL: str = "text-embedding-3-small"
+    VECTOR_DIMENSION: int = 1536
+    CHUNK_SIZE: int = 1000
+    CHUNK_OVERLAP: int = 200
+    TOP_K_MATCHES: int = 5
     
     # MongoDB Configuration
     MONGODB_URI: Optional[SecretStr] = None # TODO: Remove optionality
@@ -25,6 +32,8 @@ class Settings(BaseSettings):
     
     # Hugging Face Configuration
     HF_API_TOKEN: Optional[SecretStr] = None
+
+    
     
     # Logging Configuration
     LOG_LEVEL: Literal["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"] = "INFO"