feat(trial): shorten free trial from 30 to 7 days

Backend source of truth (subscriptions.service.startFullTrial) now grants a
7-day trial via a named TRIAL_DAYS constant. Existing trials keep their stored
endDate — only new sign-ups are affected, so no migration is needed.

In-app conversion UX rescaled to the 7-day window, preserving the two-banner
no-overlap design:
  - urgency banner: visible the last 3 days (soft d3 / urgent d2 / critical d1)
  - value-upsell: owns days > 3 (the opening days), still proven-value gated
  - progress bars now derive the total span from real start->end dates, so both
    7-day and any remaining legacy 30-day trials render an accurate bar
Subscription-page thresholds (<=3 / >3) and the analytics gate updated to match.

Copy: 17 trial strings each in tr.json/en.json plus hardcoded CTAs in
site-header, _auth, register and demo-footer-cta -> "7 gun / 7 Gun / 7-Day".

Lifecycle emails need no change: trial-ending fires 3-4 days before endDate
and win-back after expiry (both already relative to endDate), and templates
use the dynamic {{daysLeft}} variable (no hardcoded 30).

Test: trial-progress-banner spec updated to 7-day scenarios.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/web/src/routes/_auth.tsx

@@ -160,8 +160,8 @@ function AuthLayout() {
 
         {/* Bottom trial badge */}
         <div className="relative flex items-center gap-2 pt-6 text-sm text-muted-foreground">
-          <ShieldCheck className="size-4 text-brand" />
-          30 gün Full Paket ücretsiz deneyin — kredi kartı gerekmez
+          <ShieldCheck className="size-4 text-brand" />7 gün Full Paket ücretsiz deneyin — kredi
+          kartı gerekmez
         </div>
       </div>
     </div>

apps/web/src/routes/_auth/register.tsx

@@ -259,7 +259,7 @@ function RegisterPage() {
         {/* Trust strip — kartsız + iptal + KVKK/SSL rozetleri tek satır */}
         <div className="mt-3 flex items-center gap-2 rounded-lg border border-brand/20 bg-brand/10 px-3 py-2 text-sm text-foreground">
           <ShieldCheck className="size-4 shrink-0 text-brand" />
-          Kart bilgisi gerekmez · 30 gün ücretsiz · istediğin an iptal
+          Kart bilgisi gerekmez · 7 gün ücretsiz · istediğin an iptal
         </div>
       </div>
 

apps/web/src/routes/dashboard/subscription/__tests__/trial-progress-banner.test.tsx

@@ -1,8 +1,8 @@
 /**
  * Tests for TrialProgressBanner — the calm, persistent trial-status strip
- * shown for days 8–30 of a trial. Previously trial users saw no reminder of
- * remaining days until the urgent (<=7d) banner appeared, leaving the bulk of
- * the trial window with no conversion nudge.
+ * shown during the early part of the trial (e.g. days 4–7 of a 7-day trial),
+ * before the urgent (<=3d) banner takes over. Without it the opening days of
+ * the trial window would have no conversion nudge.
  */
 
 import { fireEvent, render } from "@testing-library/react";
@@ -21,31 +21,35 @@ import { TrialProgressBanner } from "@/routes/dashboard/subscription/index";
 
 describe("TrialProgressBanner", () => {
   test("renders remaining days, description and CTA", () => {
-    const { container } = render(<TrialProgressBanner daysRemaining={20} onCta={vi.fn()} />);
+    const { container } = render(<TrialProgressBanner daysRemaining={5} onCta={vi.fn()} />);
     const text = container.textContent ?? "";
     expect(text).toContain("subscription.trialProgress.title");
-    expect(text).toContain('"days":20');
+    expect(text).toContain('"days":5');
     expect(text).toContain("subscription.trialProgress.description");
     expect(text).toContain("subscription.trialProgress.cta");
   });
 
-  test("progress bar width reflects elapsed share of a 30-day trial", () => {
-    // 20 days left of 30 => 10 elapsed => 33%
-    const { container } = render(<TrialProgressBanner daysRemaining={20} onCta={vi.fn()} />);
+  test("progress bar width reflects elapsed share of the trial", () => {
+    // 4 days left of a 7-day trial => 3 elapsed => 43%
+    const { container } = render(
+      <TrialProgressBanner daysRemaining={4} totalDays={7} onCta={vi.fn()} />,
+    );
     const bar = container.querySelector('[style*="width"]') as HTMLElement | null;
     expect(bar).not.toBeNull();
-    expect(bar!.style.width).toBe("33%");
+    expect(bar!.style.width).toBe("43%");
   });
 
   test("clamps progress for out-of-range day counts", () => {
-    const { container } = render(<TrialProgressBanner daysRemaining={40} onCta={vi.fn()} />);
+    const { container } = render(
+      <TrialProgressBanner daysRemaining={40} totalDays={7} onCta={vi.fn()} />,
+    );
     const bar = container.querySelector('[style*="width"]') as HTMLElement;
     expect(bar.style.width).toBe("0%");
   });
 
   test("CTA click invokes onCta", () => {
     const onCta = vi.fn();
-    const { getByRole } = render(<TrialProgressBanner daysRemaining={15} onCta={onCta} />);
+    const { getByRole } = render(<TrialProgressBanner daysRemaining={5} onCta={onCta} />);
     fireEvent.click(getByRole("button"));
     expect(onCta).toHaveBeenCalledTimes(1);
   });

apps/web/src/routes/dashboard/subscription/index.tsx

@@ -426,6 +426,19 @@ export function SubscriptionPage() {
     );
   })();
 
+  // Real trial span (days) from start→end so the progress bar is accurate for
+  // both 7-day trials and any remaining legacy 30-day trials.
+  const trialTotalDays = (() => {
+    if (!subscription?.startDate || !subscription.endDate) return 7;
+    return Math.max(
+      1,
+      Math.round(
+        (new Date(subscription.endDate).getTime() - new Date(subscription.startDate).getTime()) /
+          (1000 * 60 * 60 * 24),
+      ),
+    );
+  })();
+
   useEffect(() => {
     if (!subscription?.endDate) return;
     const key = trialBannerKey(userId, subscription.endDate);
@@ -435,7 +448,7 @@ export function SubscriptionPage() {
   useEffect(() => {
     if (
       trialDaysRemaining === null ||
-      trialDaysRemaining > 7 ||
+      trialDaysRemaining > 3 ||
       trialBannerDismissed ||
       trialBannerViewedRef.current
     ) {
@@ -658,7 +671,7 @@ export function SubscriptionPage() {
         />
       )}
 
-      {trialDaysRemaining !== null && trialDaysRemaining <= 7 && !trialBannerDismissed && (
+      {trialDaysRemaining !== null && trialDaysRemaining <= 3 && !trialBannerDismissed && (
         <TrialUrgencyBanner
           daysRemaining={trialDaysRemaining}
           onCta={handleTrialBannerCTAClick}
@@ -666,9 +679,10 @@ export function SubscriptionPage() {
         />
       )}
 
-      {trialDaysRemaining !== null && trialDaysRemaining > 7 && (
+      {trialDaysRemaining !== null && trialDaysRemaining > 3 && (
         <TrialProgressBanner
           daysRemaining={trialDaysRemaining}
+          totalDays={trialTotalDays}
           onCta={() => {
             capture("trial_progress_cta_clicked", { days_remaining: trialDaysRemaining });
             document.getElementById("checkout-flow")?.scrollIntoView({ behavior: "smooth" });
@@ -1709,7 +1723,7 @@ function TrialUrgencyBanner({
 
 export function TrialProgressBanner({
   daysRemaining,
-  totalDays = 30,
+  totalDays = 7,
   onCta,
 }: {
   daysRemaining: number;