feat(FN-316): update design spec to reflect ≤7 day trial banner threshold

Commits merged:
- docs(FN-316): update design spec to reflect ≤7 day trial banner threshold

Files changed:
docs/design-specs/post-p0-subscription-audit.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Fusion-Task-Id: FN-316

docs/design-specs/post-p0-subscription-audit.md

@@ -216,7 +216,7 @@ Also consider adding skeleton placeholders for the title, billing toggle, Separa
 ### What was verified:
 1. **Component exists and is implemented:** Full component at `components/trial-urgency-banner.tsx` with proper React patterns.
 2. **Rendered in dashboard layout:** `<TrialUrgencyBanner />` at top of `<main>` in `dashboard.tsx` — visible on all dashboard pages including subscription.
-3. **Display logic:** Shows only when `status === "trial"`, `endDate` exists, and `≤ 3 days` remain.
+3. **Display logic:** Shows only when `status === "trial"`, `endDate` exists, and `≤ 7 days` remain.
 4. **Dismiss mechanism:** Stores dismissal in `localStorage` keyed by endDate (`trialBannerDismissed-{endDate}`) — persists across sessions until trial end date changes.
 5. **i18n keys:** Uses `subscription.trialBanner.title`, `.description`, `.cta` — all present in both `tr.json` and `en.json`.
 6. **Visual design:** Amber colorway (`bg-amber-50`, `border-amber-200`, `text-amber-900`) with `AlertTriangle` icon — consistent urgency signaling.