reafctor: all code without stream

src/services/errors.rs

@@ -0,0 +1,27 @@
+use crate::databases::errors::DbError;
+use crate::providers::keycloak::errors::AuthError;
+use crate::providers::ollama::errors::LlmError;
+
+pub enum ServiceError {
+    Db(DbError),
+    Llm(LlmError),
+    Auth(AuthError),
+}
+
+impl From<DbError> for ServiceError {
+    fn from(e: DbError) -> Self {
+        ServiceError::Db(e)
+    }
+}
+
+impl From<LlmError> for ServiceError {
+    fn from(e: LlmError) -> Self {
+        ServiceError::Llm(e)
+    }
+}
+
+impl From<AuthError> for ServiceError {
+    fn from(e: AuthError) -> Self {
+        ServiceError::Auth(e)
+    }
+}