feat: anasayfa içeriği, iletişim ve sosyal medya yönetilebilir

Yeni site_settings tablosu (singleton, rowId='homepage'):
- Hero: badge, title, subtitle, 2 CTA (label+href), stats (JSON array)
- Section başlıkları: services/projects/testimonials eyebrow + title + description
- Alt CTA: title, description, button label+href
- Contact: phone (görünen + tel: ham), email, address, hafta içi/sonu saatleri
- Social: linkedin/instagram/twitter/facebook URL'leri
- Footer tagline

Mevcut hardcoded değerler seed edildi.

Admin:
- /admin/site sayfası eklendi (sidebar'a 'Site Ayarları' linki)
- Bölümlü tek form: Hero / Hizmetler / Projeler / Referanslar / Alt CTA / İletişim / Sosyal / Footer
- Stats için 'değer | etiket' satır formatı

Public bağlantılar:
- Hero component artık settings prop alıyor (fallback değerlerle)
- Anasayfa: tüm section başlıkları ve alt CTA settings'ten geliyor
- Header: telefon settings'ten
- Footer: tagline, adres, telefon, email, sosyal linkler settings'ten
  (sosyal link sadece dolu olanlar gösteriliyor)
- Footer'da hizmetler artık /hizmetler/[slug] detay sayfalarına bağlı
- İletişim sayfası: adres, telefon, email, saatler settings'ten

30 route üretiliyor.

lib/admin-actions.ts

@@ -281,6 +281,85 @@ export async function deleteTestimonial(formData: FormData) {
   revalidatePath("/admin/referanslar");
 }
 
+// ─── Site Settings (homepage content) ────────────────────────────
+
+export async function saveSiteSettings(formData: FormData) {
+  const secret = await requireSessionSecret();
+
+  // Hero stats: 3 satır halinde "value|label" formatında — JSON array'e çevir
+  const statsRaw = String(formData.get("hero_stats") ?? "");
+  const stats = statsRaw
+    .split("\n")
+    .map((line) => {
+      const [value, label] = line.split("|").map((s) => s.trim());
+      if (!value || !label) return null;
+      return JSON.stringify({ value, label });
+    })
+    .filter((x): x is string => x !== null);
+
+  const data = {
+    hero_badge: str(formData.get("hero_badge")),
+    hero_title: str(formData.get("hero_title")),
+    hero_subtitle: str(formData.get("hero_subtitle")),
+    hero_cta_primary_label: str(formData.get("hero_cta_primary_label")),
+    hero_cta_primary_href: str(formData.get("hero_cta_primary_href")),
+    hero_cta_secondary_label: str(formData.get("hero_cta_secondary_label")),
+    hero_cta_secondary_href: str(formData.get("hero_cta_secondary_href")),
+    hero_stats: stats.length > 0 ? stats : null,
+
+    services_eyebrow: str(formData.get("services_eyebrow")),
+    services_title: str(formData.get("services_title")),
+    services_description: str(formData.get("services_description")),
+
+    projects_eyebrow: str(formData.get("projects_eyebrow")),
+    projects_title: str(formData.get("projects_title")),
+    projects_description: str(formData.get("projects_description")),
+
+    testimonials_eyebrow: str(formData.get("testimonials_eyebrow")),
+    testimonials_title: str(formData.get("testimonials_title")),
+    testimonials_description: str(formData.get("testimonials_description")),
+
+    cta_title: str(formData.get("cta_title")),
+    cta_description: str(formData.get("cta_description")),
+    cta_button_label: str(formData.get("cta_button_label")),
+    cta_button_href: str(formData.get("cta_button_href")),
+
+    contact_phone: str(formData.get("contact_phone")),
+    contact_phone_raw: str(formData.get("contact_phone_raw")),
+    contact_email: str(formData.get("contact_email")),
+    contact_address: str(formData.get("contact_address")),
+    contact_hours_weekday: str(formData.get("contact_hours_weekday")),
+    contact_hours_weekend: str(formData.get("contact_hours_weekend")),
+
+    social_linkedin: str(formData.get("social_linkedin")),
+    social_instagram: str(formData.get("social_instagram")),
+    social_twitter: str(formData.get("social_twitter")),
+    social_facebook: str(formData.get("social_facebook")),
+
+    footer_tagline: str(formData.get("footer_tagline")),
+  };
+
+  try {
+    await tablesDB.updateRow(
+      DATABASE_ID,
+      TABLES.siteSettings,
+      "homepage",
+      data,
+      secret,
+    );
+  } catch {
+    await tablesDB.createRow(
+      DATABASE_ID,
+      TABLES.siteSettings,
+      "homepage",
+      data,
+      secret,
+    );
+  }
+  revalidatePath("/", "layout");
+  revalidatePath("/admin/site");
+}
+
 // ─── SEO Settings ────────────────────────────────────────────────
 
 export async function saveSeoSettings(formData: FormData) {

lib/appwrite-rest.ts

@@ -21,6 +21,7 @@ export const TABLES = {
   testimonials: "testimonials",
   seoPages: "seo_pages",
   seoSettings: "seo_settings",
+  siteSettings: "site_settings",
 } as const;
 
 export class AppwriteError extends Error {

lib/data.ts

@@ -8,6 +8,7 @@ import type {
   ServiceRow,
   SeoPageRow,
   SeoSettingsRow,
+  SiteSettingsRow,
   TestimonialRow,
 } from "@/lib/types";
 
@@ -118,6 +119,18 @@ export async function listSeoPages() {
   ]);
 }
 
+export async function getSiteSettings(): Promise<SiteSettingsRow | null> {
+  try {
+    return await tablesDB.getRow<SiteSettingsRow>(
+      DATABASE_ID,
+      TABLES.siteSettings,
+      "homepage",
+    );
+  } catch {
+    return null;
+  }
+}
+
 export async function getSeoSettings(): Promise<SeoSettingsRow | null> {
   try {
     return await tablesDB.getRow<SeoSettingsRow>(

lib/types.ts

@@ -86,6 +86,53 @@ export interface SeoSettingsRow extends AwRow {
   gtm_id?: string | null;
 }
 
+export interface StatItem {
+  value: string;
+  label: string;
+}
+
+export interface SiteSettingsRow extends AwRow {
+  hero_badge?: string | null;
+  hero_title?: string | null;
+  hero_subtitle?: string | null;
+  hero_cta_primary_label?: string | null;
+  hero_cta_primary_href?: string | null;
+  hero_cta_secondary_label?: string | null;
+  hero_cta_secondary_href?: string | null;
+  hero_stats?: string[] | null; // each item JSON: {"value":"...","label":"..."}
+
+  services_eyebrow?: string | null;
+  services_title?: string | null;
+  services_description?: string | null;
+
+  projects_eyebrow?: string | null;
+  projects_title?: string | null;
+  projects_description?: string | null;
+
+  testimonials_eyebrow?: string | null;
+  testimonials_title?: string | null;
+  testimonials_description?: string | null;
+
+  cta_title?: string | null;
+  cta_description?: string | null;
+  cta_button_label?: string | null;
+  cta_button_href?: string | null;
+
+  contact_phone?: string | null;
+  contact_phone_raw?: string | null;
+  contact_email?: string | null;
+  contact_address?: string | null;
+  contact_hours_weekday?: string | null;
+  contact_hours_weekend?: string | null;
+
+  social_linkedin?: string | null;
+  social_instagram?: string | null;
+  social_twitter?: string | null;
+  social_facebook?: string | null;
+
+  footer_tagline?: string | null;
+}
+
 export interface ContactMessageRow extends AwRow {
   name: string;
   email: string;