Start CQRS refactoring: Create Osiris client crate

- Added workspace structure to Osiris Cargo.toml
- Created osiris-client crate for query operations (GET requests)
- Implemented generic get(), list(), query() methods
- Added KYC, payment, and communication query modules
- Created comprehensive refactoring plan document

CQRS Pattern:
- Commands (writes) → Supervisor client → Rhai scripts
- Queries (reads) → Osiris client → REST API

Next steps:
- Implement Osiris server with Axum
- Restructure SDK client by category (kyc/, payment/, etc.)
- Update FreezoneClient to use both supervisor and osiris clients

examples/freezone/freezone copy.rhai

@@ -5,6 +5,8 @@ public_key_registration_step = step.new()
     .description("Register your public key")
     .add_action("Register");
 
+
+
 flow_id = registration_flow.start()
 
 
@@ -20,16 +22,10 @@ flow_id = registration_flow.start()
 
 
 
+pk_registration_step.complete()
 
-
-
-
-
-
-
-public_key_registration_step.complete()
-
-public_key = 
+freezone_user = get_context()
+public_key = pk_registration_step.output()
 print("Public key <>registered.");
 print("Now user needs to submit email");