Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@components/pages/posts/post/PostNud3.vue`:
- Around line 4-9: In PostNud3.vue the runtime props object created by
defineProps(...) is inconsistent with other components and the resulting props
binding (props) is unused; change to the TypeScript generic form defineProps<{
mediaUrl: string }>() so the component gets a typed mediaUrl via script-setup
auto-unwrapping, and remove the unused props variable (or replace its usage with
the unwrapped mediaUrl) to keep the file consistent with PostChatWithAi.vue and
PostComponent.vue.

In `@pages/posts/`[domain].vue:
- Around line 418-506: The current unconditional return of the hardcoded sample
object prevents the real $fetch flow from running; locate the function that
returns the object (references: selectedBooru, data/meta/links, and the later
$fetch call) and either remove this sample return or wrap it in a clear
non-production guard (e.g., check a runtime config flag like
config.public.demoMode or process.env.NODE_ENV !== 'production'); ensure that
when the flag is false the code falls through to the existing $fetch logic so
selected tags, filters, pagination, and selectedBooru are used instead of the
four static posts.