feat: Migrate SAL to Cargo workspace

- Migrate individual modules to independent crates
- Refactor dependencies for improved modularity
- Update build system and testing infrastructure
- Update documentation to reflect new structure

mycelium/src/lib.rs

@@ -13,10 +13,7 @@
 //!
 //! All interactions with the Mycelium API are performed asynchronously.
 
-use base64::{
-    engine::general_purpose,
-    Engine as _,
-};
+use base64::{engine::general_purpose, Engine as _};
 use reqwest::Client;
 use serde_json::Value;
 use std::time::Duration;

mycelium/src/rhai.rs

@@ -4,11 +4,11 @@
 
 use std::time::Duration;
 
-use rhai::{Engine, EvalAltResult, Array, Dynamic, Map};
 use crate as client;
-use tokio::runtime::Runtime;
-use serde_json::Value;
 use rhai::Position;
+use rhai::{Array, Dynamic, Engine, EvalAltResult, Map};
+use serde_json::Value;
+use tokio::runtime::Runtime;
 
 /// Register Mycelium module functions with the Rhai engine
 ///
@@ -25,11 +25,17 @@ pub fn register_mycelium_module(engine: &mut Engine) -> Result<(), Box<EvalAltRe
     engine.register_fn("mycelium_list_peers", mycelium_list_peers);
     engine.register_fn("mycelium_add_peer", mycelium_add_peer);
     engine.register_fn("mycelium_remove_peer", mycelium_remove_peer);
-    engine.register_fn("mycelium_list_selected_routes", mycelium_list_selected_routes);
-    engine.register_fn("mycelium_list_fallback_routes", mycelium_list_fallback_routes);
+    engine.register_fn(
+        "mycelium_list_selected_routes",
+        mycelium_list_selected_routes,
+    );
+    engine.register_fn(
+        "mycelium_list_fallback_routes",
+        mycelium_list_fallback_routes,
+    );
     engine.register_fn("mycelium_send_message", mycelium_send_message);
     engine.register_fn("mycelium_receive_messages", mycelium_receive_messages);
-    
+
     Ok(())
 }
 
@@ -38,7 +44,7 @@ fn get_runtime() -> Result<Runtime, Box<EvalAltResult>> {
     tokio::runtime::Runtime::new().map_err(|e| {
         Box::new(EvalAltResult::ErrorRuntime(
             format!("Failed to create Tokio runtime: {}", e).into(),
-            rhai::Position::NONE
+            rhai::Position::NONE,
         ))
     })
 }
@@ -56,7 +62,7 @@ fn value_to_dynamic(value: Value) -> Dynamic {
             } else {
                 Dynamic::from(n.to_string())
             }
-        },
+        }
         Value::String(s) => Dynamic::from(s),
         Value::Array(arr) => {
             let mut rhai_arr = Array::new();
@@ -64,7 +70,7 @@ fn value_to_dynamic(value: Value) -> Dynamic {
                 rhai_arr.push(value_to_dynamic(item));
             }
             Dynamic::from(rhai_arr)
-        },
+        }
         Value::Object(map) => {
             let mut rhai_map = Map::new();
             for (k, v) in map {
@@ -75,7 +81,6 @@ fn value_to_dynamic(value: Value) -> Dynamic {
     }
 }
 
-
 //
 // Mycelium Client Function Wrappers
 //
@@ -206,8 +211,9 @@ pub fn mycelium_send_message(
         Some(Duration::from_secs(reply_deadline_secs as u64))
     };
 
-    let result =
-        rt.block_on(async { client::send_message(api_url, destination, topic, message, deadline).await });
+    let result = rt.block_on(async {
+        client::send_message(api_url, destination, topic, message, deadline).await
+    });
 
     let response = result.map_err(|e| {
         Box::new(EvalAltResult::ErrorRuntime(