Restructure Osiris: separate core, client, and server crates to avoid circular dependencies

core/src/objects/flow/mod.rs

@@ -0,0 +1,10 @@
+/// Flow Module
+/// 
+/// Provides workflow/flow management with templates and instances.
+
+pub mod template;
+pub mod instance;
+pub mod rhai;
+
+pub use template::{FlowTemplate, FlowStep};
+pub use instance::{FlowInstance, FlowStatus, StepStatus, StepInstance};