Boosted profiles on the plans, and a real suspension clause

[xuelink]

The site half of langx/langx#1274, which ships boosted profiles and account
suspension. This is the hand-kept mirror the README's table describes:
plans.ts and features.ts copy PLAN_LIMITS, and nothing checks that they
stay in step.

Boosted profiles

Fluent buys a place in a strip above the Discover list, shown to people whose
languages match yours, on by default and switchable off in Settings. Polyglot
leads that strip.

It is in both plan lists, for the same reason the translation allowance is:
both plans get it and Polyglot gets more of it, which "everything in Fluent"
would otherwise hide. One feature card rather than two, and the paywall replica
in PaywallScreen.svelte gains the Fluent line it mirrors.

Suspension, in Terms §8

The clause there was boilerplate — "for any reason, including but not limited
to" — and the app now does something specific enough to describe: a person
reviews the report, a suspension is for a stated period or permanent, it is
shown in the app with its end date and the reason, the profile leaves discovery
and search, tokens and streak are kept but nothing is earned, a subscription is
not cancelled by it, and there is one appeal. §4 already pointed at section 8,
so the numbering does not move.

The sentence that stopped being true

Both legal pages said a deleted account becomes invisible immediately. It is
removed from discovery and search immediately, but somebody who already has a
conversation with you can now still open the profile, marked as deleted, until
the data goes 30 days later. Terms §8, Privacy §11 and the data-deletion page
all say that, and the two effective dates move with it. Privacy §11 also states
what a suspension record and an appeal text are kept for, and for how long.

The FAQ said reports "go to a moderation team". There is no team and there is no
console; they are read by a person.

One unrelated commit

7339f43 reflows WelcomeBack.svelte. npm run lint fails on a clean main
without it — CI does not run lint, which is how it got there. One prettier pass,
no words changed, kept as its own commit so the diff that matters stays
readable.

Verification

npm run check (0 errors, 3 pre-existing text-wrap scss warnings),
npm run build, and npm run lint all pass. postbuild's image optimisation
crashes on Node 24 for reasons that predate this branch.

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