fix(web): remove non-functional phone field; localize member-since date

The profile phone input was dead UI — there is no phone column in the
schema, PATCH /users/me only accepts { name, image }, and it was never
loaded, so saving the profile sent an empty phone that the API silently
dropped. Remove the field and stop sending phone. Real phone capture
needs a backend migration (follow-up).

Also fix the "member since" date hard-coding tr-TR; it now follows the
active locale like the changelog already does.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/web/src/components/settings/settings-content.tsx

@@ -42,12 +42,11 @@ export function SettingsContent({
   tab: string;
   onTabChange: (next: string) => void;
 }) {
-  const { t } = useTranslation();
+  const { t, locale } = useTranslation();
   const { user, signOut } = useAuth();
 
   // Profile state
   const [name, setName] = useState(user?.name || "");
-  const [phone, setPhone] = useState("");
   const [savingProfile, setSavingProfile] = useState(false);
 
   // Security state
@@ -83,7 +82,7 @@ export function SettingsContent({
     e.preventDefault();
     setSavingProfile(true);
     try {
-      await api.patch("/users/me", { name, phone });
+      await api.patch("/users/me", { name });
       toast.success(t("settings.profile.updated"));
     } catch {
       toast.error(t("settings.profile.updateFailed"));
@@ -212,25 +211,14 @@ export function SettingsContent({
                   <Label>{t("settings.profile.email")}</Label>
                   <Input value={user?.email || ""} disabled />
                 </div>
-                <div className="space-y-2">
-                  <Label htmlFor="phone">{t("settings.profile.phone")}</Label>
-                  <Input
-                    id="phone"
-                    type="tel"
-                    placeholder={t("settings.profile.phonePlaceholder")}
-                    value={phone}
-                    onChange={(e) => setPhone(e.target.value)}
-                  />
-                </div>
                 {user?.createdAt && (
                   <div className="space-y-2">
                     <Label>{t("settings.profile.memberSince")}</Label>
                     <Input
-                      value={new Date(user.createdAt).toLocaleDateString("tr-TR", {
-                        day: "numeric",
-                        month: "long",
-                        year: "numeric",
-                      })}
+                      value={new Date(user.createdAt).toLocaleDateString(
+                        locale === "tr" ? "tr-TR" : "en-US",
+                        { day: "numeric", month: "long", year: "numeric" },
+                      )}
                       disabled
                     />
                   </div>