fix(chat): fold natal reports and drop homepage topic cards

Homepage no longer waits on /api/onboarding for six starter questions.
Natal answers show the spoken layer first; the Level 2 skeleton sits in a
collapsed 完整分析 block. Wide tables scroll sideways on a phone. Form
inputs are 16px so iOS does not zoom on focus.

frontend/src/hooks/use-profile-onboarding.ts

@@ -33,7 +33,7 @@ import {
   selectedBirthPlace,
 } from "@/lib/home-profile";
 import { resolveAyanamsa } from "@/lib/ayanamsa";
-import { createStartGreeting } from "@/lib/onboarding-client";
+import { createStartGreeting } from "@/lib/starter-greeting";
 import {
   timestamp,
   type Account,