feat: Add Rhai scripting support

- Add new `sal-rhai` crate for Rhai scripting integration
- Integrate Rhai with existing SAL modules
- Improve error handling for Rhai scripts and SAL functions
- Add comprehensive unit and integration tests for `sal-rhai`

rhai/Cargo.toml

@@ -0,0 +1,34 @@
+[package]
+name = "sal-rhai"
+version = "0.1.0"
+edition = "2021"
+authors = ["PlanetFirst <info@incubaid.com>"]
+description = "SAL Rhai - Rhai scripting integration for the System Abstraction Layer"
+repository = "https://git.threefold.info/herocode/sal"
+license = "Apache-2.0"
+
+[dependencies]
+# Core Rhai engine
+rhai = { version = "1.12.0", features = ["sync"] }
+
+# Error handling
+thiserror = "2.0.12"
+
+# UUID for temporary file generation
+uuid = { version = "1.16.0", features = ["v4"] }
+
+# All SAL packages that this aggregation package depends on
+sal-os = { path = "../os" }
+sal-process = { path = "../process" }
+sal-git = { path = "../git" }
+sal-vault = { path = "../vault" }
+sal-redisclient = { path = "../redisclient" }
+sal-postgresclient = { path = "../postgresclient" }
+sal-virt = { path = "../virt" }
+sal-mycelium = { path = "../mycelium" }
+sal-text = { path = "../text" }
+sal-net = { path = "../net" }
+sal-zinit-client = { path = "../zinit_client" }
+
+[dev-dependencies]
+tempfile = "3.5"