feat: Add asdf plugin support - Implement plugin interface, version d…

…etection, plugin management and tool installation

tools/asdf/Cargo.toml

@@ -0,0 +1,31 @@
+[package]
+name = "proto-asdf-plugin"
+version = "0.1.0"
+edition = "2021"
+license = "MIT"
+publish = false
+
+[lib]
+crate-type = ['cdylib']
+
+[dependencies]
+proto_pdk = { workspace = true }
+extism-pdk = { workspace = true }
+serde = { workspace = true }
+serde_json = "1.0"
+rustc-hash = "2.1"
+
+[profile.release]
+codegen-units = 1
+debug = false
+lto = true
+opt-level = "s"
+panic = "abort"
+
+[dev-dependencies]
+proto_pdk_test_utils = { workspace = true }
+tokio = { workspace = true } 
+
+[features]
+default = ["wasm"]
+wasm = []

tools/asdf/src/config.rs

@@ -0,0 +1,11 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Default, Deserialize, Serialize)]
+pub struct AsdfPluginConfig {
+    #[serde(default)]
+    pub asdf_plugin: Option<String>,
+    #[serde(default)]
+    pub asdf_repository: Option<String>,
+    #[serde(default)]
+    pub asdf_version: Option<String>,
+} 

tools/asdf/src/lib.rs

@@ -0,0 +1,7 @@
+mod config;
+mod proto;
+
+pub use config::*;
+pub use proto::*;
+
+