diff --git a/.dockerignore b/.dockerignore
index c3b48fc..232376b 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -2,6 +2,7 @@
 node_modules
 .next
 out
+dist
 coverage
 *.tsbuildinfo
 next-env.d.ts
diff --git a/.gitignore b/.gitignore
index 56ea362..5eca11d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,3 +46,4 @@ next-env.d.ts
 
 # local tooling
 /scratch/
+/dist
diff --git a/.prettierignore b/.prettierignore
index f37c117..218f411 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -5,3 +5,4 @@ coverage
 uploads
 next-env.d.ts
 docs/PROMPT.md
+dist/
diff --git a/Dockerfile b/Dockerfile
index 61b686e..020273f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,6 +2,7 @@
 # BÜTÇEM — çok aşamalı üretim imajı (Next.js standalone çıktı).
 # Build:  docker build --build-arg APP_COMMIT=$(git rev-parse --short HEAD) -t butcem .
 # Çalıştır: docker run -p 3000:3000 --env-file .env.production -v butcem-uploads:/app/uploads butcem
+# Başlarken: replica set kontrolü, bekleyen migration'lar, ilk admin (docker-entrypoint.sh).
 
 ARG NODE_VERSION=26
 
@@ -22,7 +23,8 @@ ENV NEXT_TELEMETRY_DISABLED=1 \
     APP_COMMIT=${APP_COMMIT}
 COPY --from=deps /app/node_modules ./node_modules
 COPY . .
-RUN npm run build
+# Uygulama + başlatma betiği (migration ve ilk admin; tek dosya, tsx gerekmez).
+RUN npm run build && npm run build:scripts
 
 # 3) Çalışma zamanı — yalnızca standalone çıktı, root olmayan kullanıcı.
 FROM node:${NODE_VERSION}-alpine AS runner
@@ -43,12 +45,15 @@ RUN addgroup -S -g 1001 nodejs && adduser -S -u 1001 -G nodejs nextjs \
 COPY --from=builder --chown=nextjs:nodejs /app/public ./public
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
+COPY --from=builder --chown=nextjs:nodejs /app/dist/bootstrap.mjs ./scripts/bootstrap.mjs
+COPY --chown=nextjs:nodejs --chmod=755 docker-entrypoint.sh ./docker-entrypoint.sh
 
 USER nextjs
 VOLUME ["/app/uploads"]
 EXPOSE 3000
 
-HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 \
+# start-period: ilk deploy'da migration'lar için pay.
+HEALTHCHECK --interval=30s --timeout=5s --start-period=60s --retries=3 \
   CMD node -e "fetch('http://127.0.0.1:'+(process.env.PORT||3000)+'/api/health').then(r=>process.exit(r.ok?0:1)).catch(()=>process.exit(1))"
 
-CMD ["node", "server.js"]
+ENTRYPOINT ["/app/docker-entrypoint.sh"]
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
new file mode 100755
index 0000000..962f93e
--- /dev/null
+++ b/docker-entrypoint.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+# BÜTÇEM konteyner girişi: önce başlatma (replica set kontrolü, migration'lar, ilk admin),
+# başarılıysa uygulama. Başlatma başarısız olursa konteyner durur; Dokploy günlüğünde sebep görünür.
+# Acil durumda atlamak için: SKIP_BOOTSTRAP=1
+set -e
+if [ "${SKIP_BOOTSTRAP:-0}" != "1" ]; then
+  node /app/scripts/bootstrap.mjs
+fi
+exec node /app/server.js
diff --git a/eslint.config.mjs b/eslint.config.mjs
index a301bdb..0b49407 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -20,6 +20,8 @@ const eslintConfig = defineConfig([
     ".next/**",
     "out/**",
     "build/**",
+    // Derlenmiş başlatma betiği (esbuild paketi).
+    "dist/**",
     "next-env.d.ts",
   ]),
 ]);
diff --git a/package.json b/package.json
index c06e0d2..8b75199 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "butcem",
-  "version": "0.14.0",
+  "version": "1.0.0",
   "private": true,
   "description": "BÜTÇEM — aile bütçe, cari, birikim, ev stoğu ve akıllı alışveriş uygulaması",
   "engines": {
@@ -23,6 +23,8 @@
     "icons": "tsx scripts/generate-icons.ts",
     "test:integration": "vitest run --config vitest.integration.config.mts",
     "migrate": "tsx --conditions=react-server --env-file=.env.local scripts/migrate.ts",
+    "bootstrap": "tsx --conditions=react-server --env-file=.env.local scripts/bootstrap.ts",
+    "build:scripts": "esbuild scripts/bootstrap.ts --bundle --platform=node --format=esm --target=node22 --conditions=react-server --outfile=dist/bootstrap.mjs --external:sharp --external:kerberos --external:snappy --external:socks --external:aws4 --external:@mongodb-js/zstd --external:mongodb-client-encryption --external:gcp-metadata --external:@aws-sdk/credential-providers --banner:js=\"import { createRequire } from 'node:module'; const require = createRequire(import.meta.url);\" --log-level=warning",
     "cleanup": "tsx --conditions=react-server --env-file=.env.local scripts/cleanup.ts"
   },
   "dependencies": {
diff --git a/scripts/bootstrap.ts b/scripts/bootstrap.ts
new file mode 100644
index 0000000..3311dfd
--- /dev/null
+++ b/scripts/bootstrap.ts
@@ -0,0 +1,43 @@
+/**
+ * Canlı başlatma (Docker entrypoint, uygulamadan önce): replica set kontrolü, bekleyen migration'lar
+ * ve SEED_ADMIN_* tanımlıysa ilk admin hesabı (varsa dokunulmaz). İdempotent; her deploy'da çalışır.
+ * İmajda esbuild ile tek dosyaya derlenir (scripts/bootstrap.mjs). Lokal: npm run bootstrap
+ */
+import mongoose from "mongoose";
+import { getDb, getMongoClient } from "@/lib/db/mongo";
+import { env } from "@/lib/env";
+import { runMigrations } from "./migrations";
+import { closeSeedConnections, runSeed } from "./seed/run";
+
+async function main() {
+  const e = env();
+  const hello = await getDb().admin().command({ hello: 1 });
+  if (!hello.setName) {
+    throw new Error(
+      "MongoDB replica set olarak çalışmıyor; transaction'lı yazmalar başarısız olur. " +
+        "docs/DEPLOY.md › 'MongoDB replica set' adımlarını uygulayın.",
+    );
+  }
+  if (!hello.isWritablePrimary) throw new Error("MongoDB düğümü PRIMARY değil (yazılamaz).");
+  console.log(`• MongoDB ${hello.setName} PRIMARY`);
+
+  if (e.NODE_ENV === "production" && e.SEED_ADMIN_EMAIL && e.SEED_ADMIN_PASSWORD) {
+    // Production'da seed yalnızca migration + admin yapar (örnek veri oluşturulmaz).
+    await runSeed();
+  } else {
+    await runMigrations();
+    if (e.NODE_ENV === "production")
+      console.log("• SEED_ADMIN_* tanımlı değil; admin kontrolü atlandı.");
+  }
+}
+
+main()
+  .catch((err: unknown) => {
+    console.error(`✗ Başlatma hatası: ${err instanceof Error ? err.message : err}`);
+    process.exitCode = 1;
+  })
+  .finally(async () => {
+    await closeSeedConnections();
+    await mongoose.disconnect();
+    await getMongoClient().close();
+  });
diff --git a/src/app/api/health/route.ts b/src/app/api/health/route.ts
index 47b26c1..9e826a2 100644
--- a/src/app/api/health/route.ts
+++ b/src/app/api/health/route.ts
@@ -1,5 +1,5 @@
 import { connection } from "next/server";
-import { pingDb } from "@/lib/db/mongo";
+import { getDb, pingDb } from "@/lib/db/mongo";
 import { APP_COMMIT, APP_VERSION } from "@/lib/version";
 
 /**
@@ -10,10 +10,21 @@ export async function GET() {
   // Cache Components açıkken GET handler'ı build'de prerender edilmesin.
   await connection();
   const dbOk = await pingDb();
+  // Transaction'lar için replica set şart; adı yoksa (standalone) null.
+  let replicaSet: string | null = null;
+  if (dbOk) {
+    try {
+      const hello = await getDb().admin().command({ hello: 1 }, { timeoutMS: 2_000 });
+      replicaSet = typeof hello.setName === "string" ? hello.setName : null;
+    } catch {
+      replicaSet = null;
+    }
+  }
   return Response.json(
     {
       status: dbOk ? "ok" : "degraded",
       db: dbOk ? "ok" : "unreachable",
+      replicaSet,
       version: APP_VERSION,
       commit: APP_COMMIT,
       time: new Date().toISOString(),