refactor(core): move database schema ownership (#29068)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>

packages/core/src/workspace.ts

@@ -0,0 +1,18 @@
+export * as WorkspaceV2 from "./workspace"
+
+import { Schema } from "effect"
+import { withStatics } from "./schema"
+import { Identifier } from "./util/identifier"
+
+export const ID = Schema.String.check(Schema.isStartsWith("wrk")).pipe(
+  Schema.brand("WorkspaceV2.ID"),
+  withStatics((schema) => ({
+    ascending: (id?: string) => {
+      if (!id) return schema.make("wrk_" + Identifier.ascending())
+      if (!id.startsWith("wrk")) throw new Error(`ID ${id} does not start with wrk`)
+      return schema.make(id)
+    },
+    create: () => schema.make("wrk_" + Identifier.ascending()),
+  })),
+)
+export type ID = typeof ID.Type