Restructure: move src to core/ crate, move cmd/supervisor.rs to core/src/bin/supervisor.rs, create workspace

ui/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "supervisor-admin-ui"
-version = "0.1.0"
-edition = "2021"
+version.workspace = true
+edition.workspace = true
 
 [lib]
 crate-type = ["cdylib"]
@@ -32,4 +32,4 @@ wasm-logger = "0.2"
 uuid = { version = "1.0", features = ["v4", "js"] }
 
 # Use our new WASM OpenRPC client
-hero-supervisor-openrpc-client = { path = "../openrpc" }
+hero-supervisor-openrpc-client = { path = "../client" }