add schematic error type

src/schematic/index.ts

@@ -6,3 +6,4 @@ export * from "./schematic_trace"
 export * from "./schematic_text"
 export * from "./schematic_port"
 export * from "./schematic_net_label"
+export * from "./schematic_error"

src/schematic/schematic_error.ts

@@ -0,0 +1,14 @@
+import { z } from "zod"
+
+export const schematic_error = z
+  .object({
+    schematic_error_id: z.string(),
+    type: z.literal("schematic_error"),
+    // eventually each error type should be broken out into a dir of files
+    error_type: z.literal("schematic_port_not_found"),
+    message: z.string(),
+  })
+  .describe("Defines a schematic error on the schematic")
+
+export type SchematicErrorInput = z.input<typeof schematic_error>
+export type SchematicError = z.infer<typeof schematic_error>