test(web): record the user-bubble action row in the answered golden

The answered golden omitted the `复制` / `在新对话中分支` / `编辑` buttons
that `MessageItem`'s `UserActions` renders under every user bubble, so the
scenario failed against the built client. They are unconditional in the
accessibility tree — the `@media (hover: hover)` rule only sets `opacity`,
which does not remove a node from an aria snapshot — so there is no
message-row state to stabilize before capture; the golden was simply
recorded against a stale `lib/`. A partially failed `pnpm run build` had
left the client bundles from before its failure current and the rest not.

The Agent Note records that trap: confirm the build exited zero before
refreshing a golden, and note that untracked directories under `packages/`
are compiled too, so a leftover from another branch fails the build for
reasons the diff does not explain.

The same omission is present in the other 15 committed web goldens on
master, where 9 tests across 7 files fail for this reason on a pristine
tree. That is pre-existing and belongs to whoever landed `UserActions`;
this commit fixes only the golden this PR already touches.

apps/web/tests/snapshots/question-composer/answered.expected.md

@@ -7,6 +7,12 @@
     - tab "Trajectory"
     - tab "Waterfall"
 - text: "Use the ask_user_question tool to ask me exactly one question with id \"color\", question \"Which color do you prefer?\", header \"Pick one\", and two options: label \"Blue\" with description \"A cool recessive hue that reads as calm and trustworthy in long reading sessions and dense dashboards.\", and label \"Green\" with description \"A restful mid-spectrum hue with the highest perceived brightness, easiest on the eye over long sessions.\" After I answer, reply with the single word DONE and stop."
+- button "复制":
+  - img
+- button "在新对话中分支":
+  - img
+- button "编辑":
+  - img
 - button "Think The user wants me to use the ask_user_question tool with specific parameters. Let me do exactly that.":
   - img
   - text: Think The user wants me to use the ask_user_question tool with specific parameters. Let me do exactly that.