Add workspace/environment schemas and shared agent hints

crates-cli/yaak-cli/src/utils/mod.rs

@@ -1,3 +1,4 @@
 pub mod confirm;
 pub mod http;
 pub mod json;
+pub mod schema;

crates-cli/yaak-cli/src/utils/schema.rs

@@ -0,0 +1,15 @@
+use serde_json::{Value, json};
+
+pub fn append_agent_hints(schema: &mut Value) {
+    let Some(schema_obj) = schema.as_object_mut() else {
+        return;
+    };
+
+    schema_obj.insert(
+        "x-yaak-agent-hints".to_string(),
+        json!({
+            "templateVariableSyntax": "${[ my_var ]}",
+            "templateFunctionSyntax": "${[ namespace.my_func(a='aaa',b='bbb') ]}",
+        }),
+    );
+}