refactor(core): consolidate references (#31539)

packages/server/src/groups/reference.ts

@@ -0,0 +1,28 @@
+import { Location } from "@opencode-ai/core/location"
+import { Reference } from "@opencode-ai/core/reference"
+import { Schema } from "effect"
+import { HttpApiEndpoint, HttpApiGroup, OpenApi } from "effect/unstable/httpapi"
+import { LocationMiddleware, LocationQuery, locationQueryOpenApi } from "./location"
+
+export const ReferenceGroup = HttpApiGroup.make("server.reference")
+  .add(
+    HttpApiEndpoint.get("reference.list", "/api/reference", {
+      query: LocationQuery,
+      success: Location.response(Schema.Array(Reference.Info)),
+    })
+      .annotateMerge(locationQueryOpenApi)
+      .annotateMerge(
+        OpenApi.annotations({
+          identifier: "v2.reference.list",
+          summary: "List references",
+          description: "List references available in the requested location.",
+        }),
+      ),
+  )
+  .annotateMerge(
+    OpenApi.annotations({
+      title: "reference",
+      description: "Location-scoped project references.",
+    }),
+  )
+  .middleware(LocationMiddleware)