feat: expose the plan model from the reconciler

crates/forest/src/model.rs

@@ -2,6 +2,36 @@ use std::path::PathBuf;
 
 use kdl::{KdlDocument, KdlNode, KdlValue};
 
+#[derive(Debug, Clone)]
+pub struct Plan {
+    pub name: String,
+}
+
+impl TryFrom<KdlDocument> for Plan {
+    type Error = anyhow::Error;
+
+    fn try_from(value: KdlDocument) -> Result<Self, Self::Error> {
+        let plan_section = value.get("plan").ok_or(anyhow::anyhow!(
+            "forest.kdl plan file must have a plan object"
+        ))?;
+
+        let plan_children = plan_section
+            .children()
+            .ok_or(anyhow::anyhow!("a forest plan must have children"))?;
+
+        Ok(Self {
+            name: plan_children
+                .get_arg("name")
+                .and_then(|n| match n {
+                    KdlValue::String(s) => Some(s),
+                    _ => None,
+                })
+                .cloned()
+                .ok_or(anyhow::anyhow!("a forest kuddle plan must have a name"))?,
+        })
+    }
+}
+
 #[derive(Debug, Clone)]
 pub enum ProjectPlan {
     Local { path: PathBuf },