refactor(schema): extract shared public schemas (#33571)

packages/schema/src/reference.ts

@@ -0,0 +1,24 @@
+export * as Reference from "./reference"
+
+import { Schema } from "effect"
+import { AbsolutePath } from "./schema"
+
+export interface LocalSource extends Schema.Schema.Type<typeof LocalSource> {}
+export const LocalSource = Schema.Struct({
+  type: Schema.Literal("local"),
+  path: AbsolutePath,
+  description: Schema.String.pipe(Schema.optional),
+  hidden: Schema.Boolean.pipe(Schema.optional),
+}).annotate({ identifier: "Reference.LocalSource" })
+
+export interface GitSource extends Schema.Schema.Type<typeof GitSource> {}
+export const GitSource = Schema.Struct({
+  type: Schema.Literal("git"),
+  repository: Schema.String,
+  branch: Schema.String.pipe(Schema.optional),
+  description: Schema.String.pipe(Schema.optional),
+  hidden: Schema.Boolean.pipe(Schema.optional),
+}).annotate({ identifier: "Reference.GitSource" })
+
+export const Source = Schema.Union([LocalSource, GitSource]).pipe(Schema.toTaggedUnion("type"))
+export type Source = typeof Source.Type