refactor(ui): isolate session components (#33670)

packages/ui/src/components/markdown-code-state.test.ts

@@ -1,32 +0,0 @@
-import { expect, test } from "bun:test"
-import { shouldResetCodeTokens } from "./markdown-code-state"
-
-const previous = {
-  language: "ts",
-  generation: 1,
-  stableCount: 3,
-  unstable: [],
-  raw: "```ts\nconst x = 1\n```",
-}
-
-test("resets tokens for a non-prefix replacement with the same generation and token count", () => {
-  expect(
-    shouldResetCodeTokens(previous, {
-      language: "ts",
-      generation: 1,
-      stableCount: 3,
-      raw: "```ts\nlet y = 2\n```",
-    }),
-  ).toBe(true)
-})
-
-test("retains tokens for an append-only streaming update", () => {
-  expect(
-    shouldResetCodeTokens(previous, {
-      language: "ts",
-      generation: 1,
-      stableCount: 4,
-      raw: `${previous.raw}\nmore`,
-    }),
-  ).toBe(false)
-})