diff --git a/architectory/arch-04-settings-and-content.md b/architectory/arch-04-settings-and-content.md
index 0695046..7b241e1 100644
--- a/architectory/arch-04-settings-and-content.md
+++ b/architectory/arch-04-settings-and-content.md
@@ -152,16 +152,18 @@ LOG_LEVEL=INFO
 # Managed PostgreSQL
 # =============================================================================
 HAN_PG_HOST=<managed-pg-private-host>
-HAN_PG_PORT=6432
+HAN_PG_PORT=5433
 HAN_PG_DATABASE=han_chat
 
-DATABASE_URL=postgresql+asyncpg://han_app:change-me@<HAN_PG_HOST>:<HAN_PG_PORT>/<HAN_PG_DATABASE>?options=-csearch_path%3Dhan_app
-BITRIX_DATABASE_URL=postgresql://bitrix_local_app:change-me@<HAN_PG_HOST>:<HAN_PG_PORT>/<HAN_PG_DATABASE>?options=-csearch_path%3Dbitrix_local
-BITRIX_SYNC_APP_DATABASE_URL=postgresql://bitrix_sync_user:change-me@<HAN_PG_HOST>:<HAN_PG_PORT>/<HAN_PG_DATABASE>?options=-csearch_path%3Dbitrix_sync%2Chan_app
-BITRIX_SYNC_DATABASE_URL=postgresql://bitrix_sync_user:change-me@<HAN_PG_HOST>:<HAN_PG_PORT>/<HAN_PG_DATABASE>?options=-csearch_path%3Dbitrix_sync
-MESSAGE_SAFETY_DATABASE_URL=postgresql://message_safety_app:change-me@<HAN_PG_HOST>:<HAN_PG_PORT>/<HAN_PG_DATABASE>?options=-csearch_path%3Dmessage_safety
+DATABASE_URL=postgresql+asyncpg://han_app:change-me@<HAN_PG_HOST>:<HAN_PG_PORT>/<HAN_PG_DATABASE>
+BITRIX_DATABASE_URL=postgresql://bitrix_local_app:change-me@<HAN_PG_HOST>:<HAN_PG_PORT>/<HAN_PG_DATABASE>
+BITRIX_SYNC_APP_DATABASE_URL=postgresql://bitrix_sync_user:change-me@<HAN_PG_HOST>:<HAN_PG_PORT>/<HAN_PG_DATABASE>
+BITRIX_SYNC_DATABASE_URL=postgresql://bitrix_sync_user:change-me@<HAN_PG_HOST>:<HAN_PG_PORT>/<HAN_PG_DATABASE>
+MESSAGE_SAFETY_DATABASE_URL=postgresql://message_safety_app:change-me@<HAN_PG_HOST>:<HAN_PG_PORT>/<HAN_PG_DATABASE>
 KEYCLOAK_DB_URL=jdbc:postgresql://<HAN_PG_HOST>:<HAN_PG_PORT>/<HAN_PG_DATABASE>?user=keycloak_user&password=change-me&currentSchema=keycloak
 KC_DB_URL_PROPERTIES=currentSchema=keycloak
+# Selectel PgBouncer 5433: pool_mode=session; search_path задаётся на уровне ролей.
+# Не добавлять options=-csearch_path: pooler отклоняет этот startup parameter.
 
 # =============================================================================
 # Публичные URL (HTTPS)
diff --git a/codebase/backend/.env.example b/codebase/backend/.env.example
index 7ce1526..59c518d 100644
--- a/codebase/backend/.env.example
+++ b/codebase/backend/.env.example
@@ -13,15 +13,17 @@ KEYCLOAK_IMAGE=han-chat-keycloak:local
 
 # Managed PostgreSQL is external to Compose. All production DSNs must verify TLS.
 HAN_PG_HOST=managed-pg.private.example
-HAN_PG_PORT=6432
+HAN_PG_PORT=5433
 HAN_PG_DATABASE=han_chat
 PG_CA_HOST_PATH=/opt/han-chat/secrets/pg/ca.pem
-DATABASE_URL=postgresql+asyncpg://han_app:change-me@managed-pg.private.example:6432/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem&options=-csearch_path%3Dhan_app
-BITRIX_DATABASE_URL=postgresql://bitrix_local_app:change-me@managed-pg.private.example:6432/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem&options=-csearch_path%3Dbitrix_local
-BITRIX_SYNC_APP_DATABASE_URL=postgresql://bitrix_sync_user:change-me@managed-pg.private.example:6432/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem&options=-csearch_path%3Dbitrix_sync%2Chan_app
-BITRIX_SYNC_DATABASE_URL=postgresql://bitrix_sync_user:change-me@managed-pg.private.example:6432/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem&options=-csearch_path%3Dbitrix_sync
-MESSAGE_SAFETY_DATABASE_URL=postgresql://message_safety_app:change-me@managed-pg.private.example:6432/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem&options=-csearch_path%3Dmessage_safety
-KEYCLOAK_DB_URL=jdbc:postgresql://managed-pg.private.example:6432/han_chat?currentSchema=keycloak&sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem
+# PgBouncer session mode uses each role's database-level search_path; do not pass libpq options.
+DATABASE_URL=postgresql+asyncpg://han_app:change-me@managed-pg.private.example:5433/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem
+BITRIX_DATABASE_URL=postgresql://bitrix_local_app:change-me@managed-pg.private.example:5433/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem
+BITRIX_SYNC_APP_DATABASE_URL=postgresql://bitrix_sync_user:change-me@managed-pg.private.example:5433/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem
+BITRIX_SYNC_DATABASE_URL=postgresql://bitrix_sync_user:change-me@managed-pg.private.example:5433/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem
+MESSAGE_SAFETY_DATABASE_URL=postgresql://message_safety_app:change-me@managed-pg.private.example:5433/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem
+KEYCLOAK_DB_URL=jdbc:postgresql://managed-pg.private.example:5433/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem
+KEYCLOAK_DB_SCHEMA=keycloak
 KEYCLOAK_DB_USERNAME=keycloak_user
 KEYCLOAK_DB_PASSWORD=change-me
 
@@ -48,9 +50,10 @@ NGINX_MESSAGE_READ_TIMEOUT_SEC=330
 NGINX_TRUSTED_PROXY_CIDR=127.0.0.1/32
 TRUSTED_PROXY_CIDRS=172.16.0.0/12
 BITRIX_FRAME_ANCESTORS=https://*.bitrix24.ru
-S3_CONNECT_SRC=https://s3.storage.selcloud.ru
+S3_CONNECT_SRC=https://*.s3.ru-7.storage.selcloud.ru
 
 FRONTEND_DEV_PROXY_ENABLED=false
+# При false значение не используется
 EXPO_DEV_SERVER_URL=http://host.docker.internal:8081
 ACME_EMAIL=ops@example.ru
 
@@ -58,33 +61,46 @@ KEYCLOAK_PUBLIC_URL=https://chat.example.ru/auth
 KEYCLOAK_INTERNAL_URL=http://keycloak:8080/auth
 KEYCLOAK_REALM=han-chat
 KEYCLOAK_AUDIENCE=han-chat-api
+# На мок среде true,true. На продакшн false,false.
 KEYCLOAK_OTP_MOCK_ENABLED=true
 KEYCLOAK_OTP_MOCK_CODE=change-me
 KEYCLOAK_OTP_MOCK_RISK_ACCEPTED=false
+# (openssl rand -hex 32)
 KEYCLOAK_OTP_HMAC_KEY=change-me
 KEYCLOAK_OTP_TTL_SEC=300
 KEYCLOAK_OTP_MAX_VERIFY_ATTEMPTS=5
 KEYCLOAK_OTP_SETTINGS_MAX_STALE_SEC=300
 KEYCLOAK_SETTINGS_BRIDGE_URL=http://api-backend:8000/internal/settings/v1/otp
 KEYCLOAK_ADMIN=bootstrap-admin
+# (openssl rand -hex 32)
 KEYCLOAK_ADMIN_PASSWORD=change-me
+# (openssl rand -hex 32)
 CURSOR_HMAC_SECRET=change-me
 
+# Redis пароль 1 (openssl rand -hex 32)
 REDIS_API_PASSWORD=change-me
-REDIS_SAFETY_PASSWORD=change-me
-REDIS_HEALTH_PASSWORD=change-me
 REDIS_URL=redis://api_backend:change-me@redis:6379/0
 REDIS_REALTIME_URL=redis://api_backend:change-me@redis:6379/1
+# Redis пароль 2 (openssl rand -hex 32)
+REDIS_SAFETY_PASSWORD=change-me
 MESSAGE_SAFETY_REDIS_URL=redis://message_safety:change-me@redis:6379/2
+# Redis пароль 3 (openssl rand -hex 32)
+REDIS_HEALTH_PASSWORD=change-me
+
 REDIS_MAXMEMORY=384mb
 REDIS_EVICTION_POLICY=volatile-lru
 
+#token1 (openssl rand -hex 32)
 MESSAGE_SAFETY_SERVICE_TOKEN=change-me
+#token2 (openssl rand -hex 32)
 BITRIX_LOCAL_APP_INTERNAL_TOKEN=change-me
 BITRIX_INTERNAL_API_TOKEN=change-me
+#token3 (openssl rand -hex 32)
 BITRIX_API_FORWARD_TOKEN=change-me
 BITRIX_API_INBOX_TOKEN=change-me
+#token4 (openssl rand -hex 32)
 BITRIX_SYNC_SERVICE_TOKEN=change-me
+#token5 (openssl rand -hex 32)
 KEYCLOAK_SETTINGS_BRIDGE_TOKEN=change-me
 
 BITRIX_LOCAL_APP_BASE_URL=http://bitrix-local-app:8080
@@ -97,6 +113,7 @@ MESSAGE_SAFETY_TASK_POLL_MAX_SEC=300
 MESSAGE_SAFETY_TASK_TTL_SEC=900
 MESSAGE_SAFETY_FILE_SCAN_TIMEOUT_SEC=60
 MESSAGE_SAFETY_RULES_VERSION=2026-01-01
+#Отключение синхронизации (при отключенной синхронизации параметры ниже не работают)
 BITRIX_SYNC_ENABLED=false
 BITRIX_SYNC_CRM_BASE_URL=https://example.bitrix24.ru
 BITRIX_SYNC_CRM_WEBHOOK_URL=change-me
@@ -104,19 +121,26 @@ BITRIX_SYNC_CONTACT_MAP_INTERVAL_SEC=60
 BITRIX_SYNC_CONTACT_UPDATE_INTERVAL_SEC=30
 BITRIX_SYNC_CRM_MAX_CONCURRENCY=2
 BITRIX_SYNC_CONTACT_LIST_BATCH_SIZE=50
+# (openssl rand -hex 32)
 BITRIX_SYNC_WEBHOOK_TOKEN=change-me
+
+# Сначала регистрируется приложение в Битрикс24, потом тут прописываются секреты
 BITRIX_CLIENT_ID=change-me
 BITRIX_CLIENT_SECRET=change-me
+BITRIX_APPLICATION_TOKEN=change-me
+
 BITRIX_CONNECTOR_ID=han_mobile_app
 BITRIX_CONNECTOR_NAME=HAN Mobile App
-BITRIX_OPEN_LINE_ID=8
+BITRIX_OPEN_LINE_ID=<N>
+BITRIX_EXPECTED_DOMAIN=<ваш-портал>.bitrix24.ru
 BITRIX_PUBLIC_BASE_URL=https://chat.example.ru/bitrix
-BITRIX_APPLICATION_TOKEN=change-me
+
+# ENCRYPTION_KEY обязательно через base64
 # Generate with: python -c "import base64,secrets; print(base64.urlsafe_b64encode(secrets.token_bytes(32)).decode())"
 BITRIX_TOKEN_ENCRYPTION_KEY=change-me
 BITRIX_HTTP_TIMEOUT_SEC=10
 
-SELECTEL_S3_ENDPOINT_URL=https://s3.storage.selcloud.ru
+SELECTEL_S3_ENDPOINT_URL=https://s3.ru-7.storage.selcloud.ru
 SELECTEL_S3_BUCKET_DOCUMENTS=han-chat-documents
 SELECTEL_S3_BUCKET_ATTACHMENTS=han-chat-attachments
 SELECTEL_S3_BUCKET_QUARANTINE=han-chat-quarantine
@@ -126,7 +150,12 @@ SELECTEL_S3_QUARANTINE_READ_ACCESS_KEY=change-me
 SELECTEL_S3_QUARANTINE_READ_SECRET_KEY=change-me
 
 OTEL_EXPORTER_OTLP_ENDPOINT=http://otel-collector:4317
+#Если есть внешний OTLP-сервис, замените (Точный формат авторизации зависит от провайдера):
+#Если внешнего OTLP-сервиса пока нет, otlp.example.invalid:4317 можно временно оставить, но Collector будет постоянно пытаться подключиться, писать предупреждения и накапливать очередь.
 OTEL_REMOTE_ENDPOINT=otlp.example.invalid:4317
 OTEL_REMOTE_AUTH_HEADER=change-me
+# Сейчас соответствуют 10% трассировок и очереди 10000
+# Также обнаружена особенность проекта: OTEL_TRACES_SAMPLER_ARG и OTEL_QUEUE_SIZE сейчас фактически не подставляются в конфигурацию — там жёстко установлены 10% и 10000. Поэтому менять эти две переменные пока бессмысленно.
 OTEL_TRACES_SAMPLER_ARG=0.10
 OTEL_QUEUE_SIZE=10000
+
diff --git a/codebase/backend/api-backend/alembic/env.py b/codebase/backend/api-backend/alembic/env.py
index b3a311d..6eb1636 100644
--- a/codebase/backend/api-backend/alembic/env.py
+++ b/codebase/backend/api-backend/alembic/env.py
@@ -2,16 +2,17 @@ import asyncio
 from logging.config import fileConfig
 
 from sqlalchemy import pool
-from sqlalchemy.ext.asyncio import async_engine_from_config
 
 from alembic import context
 from app.db import Base
+from app.postgres import create_postgres_engine
 from app.settings import get_settings
 
 config = context.config
 if config.config_file_name:
     fileConfig(config.config_file_name)
-config.set_main_option("sqlalchemy.url", get_settings().database_url)
+database_url = get_settings().database_url
+config.set_main_option("sqlalchemy.url", database_url.replace("%", "%%"))
 target_metadata = Base.metadata
 
 
@@ -28,11 +29,7 @@ def do_run_migrations(connection) -> None:
 
 
 async def run_async_migrations() -> None:
-    connectable = async_engine_from_config(
-        config.get_section(config.config_ini_section, {}),
-        prefix="sqlalchemy.",
-        poolclass=pool.NullPool,
-    )
+    connectable = create_postgres_engine(database_url, poolclass=pool.NullPool)
     async with connectable.connect() as connection:
         await connection.run_sync(do_run_migrations)
     await connectable.dispose()
diff --git a/codebase/backend/api-backend/alembic/versions/0001_initial_han_app.py b/codebase/backend/api-backend/alembic/versions/0001_initial_han_app.py
index 2922ba3..e38a13b 100644
--- a/codebase/backend/api-backend/alembic/versions/0001_initial_han_app.py
+++ b/codebase/backend/api-backend/alembic/versions/0001_initial_han_app.py
@@ -7,6 +7,7 @@ Create Date: 2026-07-10
 
 from collections.abc import Sequence
 
+import sqlalchemy as sa
 from alembic import op
 from app.db import Base
 
@@ -75,12 +76,18 @@ def upgrade() -> None:
         CREATE UNIQUE INDEX IF NOT EXISTS uq_dialog_one_active_per_user
         ON han_app.dialogs(user_id)
         WHERE record_status='A'
-          AND status IN ('open','waiting_for_company','waiting_for_client');
-
+          AND status IN ('open','waiting_for_company','waiting_for_client')
+        """
+    )
+    op.execute(
+        """
         CREATE UNIQUE INDEX IF NOT EXISTS uq_profiles_active_bitrix_contact
         ON han_app.client_profiles(bitrix_contact_id)
-        WHERE bitrix_contact_id IS NOT NULL AND record_status='A';
-
+        WHERE bitrix_contact_id IS NOT NULL AND record_status='A'
+        """
+    )
+    op.execute(
+        """
         CREATE OR REPLACE FUNCTION han_app.enqueue_contact_sync()
         RETURNS trigger
         LANGUAGE plpgsql
@@ -116,36 +123,48 @@ def upgrade() -> None:
             ON CONFLICT (dedup_key) DO NOTHING;
             RETURN NEW;
         END;
-        $$;
-
-        DROP TRIGGER IF EXISTS trg_identity_contact_sync ON han_app.user_identities;
+        $$
+        """
+    )
+    op.execute(
+        "DROP TRIGGER IF EXISTS trg_identity_contact_sync ON han_app.user_identities"
+    )
+    op.execute(
+        """
         CREATE TRIGGER trg_identity_contact_sync
         AFTER INSERT OR UPDATE OF phone_number, record_status
         ON han_app.user_identities
-        FOR EACH ROW EXECUTE FUNCTION han_app.enqueue_contact_sync();
-
-        DROP TRIGGER IF EXISTS trg_profile_contact_sync ON han_app.client_profiles;
+        FOR EACH ROW EXECUTE FUNCTION han_app.enqueue_contact_sync()
+        """
+    )
+    op.execute(
+        "DROP TRIGGER IF EXISTS trg_profile_contact_sync ON han_app.client_profiles"
+    )
+    op.execute(
+        """
         CREATE TRIGGER trg_profile_contact_sync
         AFTER INSERT OR UPDATE OF full_name, citizenship, russian_phone,
           foreign_phone, email, record_status
         ON han_app.client_profiles
-        FOR EACH ROW EXECUTE FUNCTION han_app.enqueue_contact_sync();
+        FOR EACH ROW EXECUTE FUNCTION han_app.enqueue_contact_sync()
         """
     )
     for key, (value, value_type, public) in SEED.items():
-        bind.exec_driver_sql(
-            """
+        bind.execute(
+            sa.text(
+                """
             INSERT INTO han_app.app_settings
                 (setting_key, setting_value, value_type, is_public, record_status, updated_at)
-            VALUES (%s, %s, %s, %s, 'A', now())
+            VALUES (:key, :value, :value_type, :public, 'A', now())
             ON CONFLICT (setting_key) DO UPDATE SET
                 setting_value = EXCLUDED.setting_value,
                 value_type = EXCLUDED.value_type,
                 is_public = EXCLUDED.is_public,
                 record_status = 'A',
                 updated_at = now()
-            """,
-            (key, value, value_type, public),
+            """
+            ),
+            {"key": key, "value": value, "value_type": value_type, "public": public},
         )
 
 
diff --git a/codebase/backend/api-backend/app/db.py b/codebase/backend/api-backend/app/db.py
index 2d539bc..ebe9c07 100644
--- a/codebase/backend/api-backend/app/db.py
+++ b/codebase/backend/api-backend/app/db.py
@@ -22,10 +22,11 @@ from sqlalchemy.ext.asyncio import (
     AsyncEngine,
     AsyncSession,
     async_sessionmaker,
-    create_async_engine,
 )
 from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column
 
+from app.postgres import create_postgres_engine
+
 SCHEMA = "han_app"
 
 
@@ -347,7 +348,7 @@ class EntityExternalMapping(Base):
 
 class Database:
     def __init__(self, url: str) -> None:
-        self.engine: AsyncEngine = create_async_engine(url, pool_pre_ping=True)
+        self.engine: AsyncEngine = create_postgres_engine(url, pool_pre_ping=True)
         self.sessions = async_sessionmaker(self.engine, expire_on_commit=False)
 
     async def session(self) -> AsyncIterator[AsyncSession]:
diff --git a/codebase/backend/api-backend/app/main.py b/codebase/backend/api-backend/app/main.py
index 5d83144..b19b8e4 100644
--- a/codebase/backend/api-backend/app/main.py
+++ b/codebase/backend/api-backend/app/main.py
@@ -101,7 +101,7 @@ async def refresh_settings_cache(app: FastAPI) -> None:
             async with app.state.db.sessions() as db:
                 app.state.snapshot = await load_settings(db)
         except Exception:
-            log.warning("settings.refresh_failed", event="settings.refresh_failed")
+            log.warning("settings.refresh_failed")
         await asyncio.sleep(30)
 
 
@@ -126,12 +126,12 @@ async def lifespan(app: FastAPI):
         async with app.state.db.sessions() as db:
             app.state.snapshot = await load_settings(db)
     except Exception:
-        structlog.get_logger().warning("settings_warmup_failed", event="settings.warmup_failed")
+        structlog.get_logger().warning("settings.warmup_failed")
     settings_task = asyncio.create_task(refresh_settings_cache(app))
     try:
         await app.state.jwks.refresh()
     except Exception:
-        structlog.get_logger().warning("jwks_warmup_failed", event="jwks.warmup_failed")
+        structlog.get_logger().warning("jwks.warmup_failed")
     yield
     settings_task.cancel()
     with suppress(asyncio.CancelledError):
@@ -211,7 +211,6 @@ async def request_context(request: Request, call_next: Any) -> Response:
     response.headers["Cache-Control"] = response.headers.get("Cache-Control", "no-store")
     log.info(
         "request.complete",
-        event="request.complete",
         status_code=response.status_code,
         duration_ms=round((time.monotonic() - request.state.started_at) * 1000, 2),
     )
@@ -262,7 +261,7 @@ async def http_error(request: Request, exc: StarletteHTTPException):
 
 @app.exception_handler(Exception)
 async def unhandled_error(request: Request, exc: Exception):
-    log.exception("request.failed", event="request.failed", error_code="internal_error")
+    log.exception("request.failed", error_code="internal_error")
     return error_response(request, "internal_error", "Internal server error", 500)
 
 
@@ -622,7 +621,7 @@ async def dialogs_create(
             },
         )
     except Exception:
-        log.warning("idempotency.cache_write_failed", event="idempotency.cache_write_failed")
+        log.warning("idempotency.cache_write_failed")
     return JSONResponse(json.loads(json.dumps(body, default=str)), status_code=status)
 
 
@@ -792,7 +791,7 @@ async def message_create(
             },
         )
     except Exception:
-        log.warning("idempotency.cache_write_failed", event="idempotency.cache_write_failed")
+        log.warning("idempotency.cache_write_failed")
     return result
 
 
diff --git a/codebase/backend/api-backend/app/postgres.py b/codebase/backend/api-backend/app/postgres.py
new file mode 100644
index 0000000..5520052
--- /dev/null
+++ b/codebase/backend/api-backend/app/postgres.py
@@ -0,0 +1,25 @@
+from __future__ import annotations
+
+from typing import Any
+
+import asyncpg
+from sqlalchemy.ext.asyncio import AsyncEngine, create_async_engine
+
+
+def asyncpg_dsn(url: str) -> str:
+    if url.startswith("postgresql+asyncpg://"):
+        return url.replace("postgresql+asyncpg://", "postgresql://", 1)
+    return url
+
+
+def create_postgres_engine(url: str, **engine_options: Any) -> AsyncEngine:
+    dsn = asyncpg_dsn(url)
+
+    async def connect():
+        return await asyncpg.connect(dsn=dsn)
+
+    return create_async_engine(
+        "postgresql+asyncpg://",
+        async_creator=connect,
+        **engine_options,
+    )
diff --git a/codebase/backend/api-backend/tests/unit/test_domain.py b/codebase/backend/api-backend/tests/unit/test_domain.py
index ca873d9..bcd8979 100644
--- a/codebase/backend/api-backend/tests/unit/test_domain.py
+++ b/codebase/backend/api-backend/tests/unit/test_domain.py
@@ -5,6 +5,7 @@ from pydantic import TypeAdapter, ValidationError
 
 from app.auth import canonical_phone
 from app.integrations import CircuitBreaker, RateLimiter
+from app.postgres import asyncpg_dsn
 from app.schemas import (
     FileMessageRequest,
     MessageRequest,
@@ -15,6 +16,15 @@ from app.schemas import (
 )
 
 
+def test_asyncpg_receives_libpq_dsn_without_sqlalchemy_driver() -> None:
+    url = (
+        "postgresql+asyncpg://user:password@db:5433/han_chat"
+        "?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem"
+    )
+
+    assert asyncpg_dsn(url) == url.replace("postgresql+asyncpg://", "postgresql://", 1)
+
+
 def test_phone_claim_priority_and_e164_validation() -> None:
     claims = {"phone_number": "+74999591007", "preferred_username": "+12025550123"}
     assert canonical_phone(claims) == "+74999591007"
diff --git a/codebase/backend/bitrix-local-app/alembic/env.py b/codebase/backend/bitrix-local-app/alembic/env.py
index 2763849..2df3cdf 100644
--- a/codebase/backend/bitrix-local-app/alembic/env.py
+++ b/codebase/backend/bitrix-local-app/alembic/env.py
@@ -2,13 +2,13 @@ import asyncio
 import os
 
 from alembic import context
-from sqlalchemy.ext.asyncio import async_engine_from_config
 
 from app.models import Base
+from app.postgres import create_postgres_engine
 
 config = context.config
-url = os.environ["BITRIX_DATABASE_URL"].replace("postgresql://", "postgresql+asyncpg://", 1)
-config.set_main_option("sqlalchemy.url", url)
+url = os.environ["BITRIX_DATABASE_URL"]
+config.set_main_option("sqlalchemy.url", url.replace("%", "%%"))
 target_metadata = Base.metadata
 
 
@@ -30,7 +30,7 @@ def do_run(connection) -> None:
 
 
 async def run_online() -> None:
-    engine = async_engine_from_config(config.get_section(config.config_ini_section) or {})
+    engine = create_postgres_engine(url)
     async with engine.connect() as connection:
         await connection.run_sync(do_run)
     await engine.dispose()
diff --git a/codebase/backend/bitrix-local-app/app/main.py b/codebase/backend/bitrix-local-app/app/main.py
index efc2ab6..b2e3f8d 100644
--- a/codebase/backend/bitrix-local-app/app/main.py
+++ b/codebase/backend/bitrix-local-app/app/main.py
@@ -24,7 +24,7 @@ from pydantic import BaseModel, ConfigDict, Field, model_validator
 from pydantic_settings import BaseSettings, SettingsConfigDict
 from sqlalchemy import func, or_, select, text
 from sqlalchemy.exc import IntegrityError
-from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker
 
 from app.models import (
     ConnectorSetup,
@@ -36,6 +36,7 @@ from app.models import (
     PortalInstallation,
     now,
 )
+from app.postgres import create_postgres_engine
 
 logger = logging.getLogger("bitrix-local-app")
 
@@ -135,10 +136,6 @@ class OutboundDto(BaseModel):
     message: MessageDto
 
 
-def pg_url(value: str) -> str:
-    return value.replace("postgresql://", "postgresql+asyncpg://", 1)
-
-
 def canonical_fingerprint(value: dict[str, Any]) -> str:
     clean = json.loads(json.dumps(value, sort_keys=True, default=str))
     for file in clean.get("message", {}).get("files", []):
@@ -416,8 +413,8 @@ def create_app(settings: Settings | None = None) -> FastAPI:
 
     @asynccontextmanager
     async def lifespan(app: FastAPI):
-        engine = create_async_engine(
-            pg_url(cfg.bitrix_database_url),
+        engine = create_postgres_engine(
+            cfg.bitrix_database_url,
             pool_size=5,
             max_overflow=0,
             pool_pre_ping=True,
diff --git a/codebase/backend/bitrix-local-app/app/postgres.py b/codebase/backend/bitrix-local-app/app/postgres.py
new file mode 100644
index 0000000..5520052
--- /dev/null
+++ b/codebase/backend/bitrix-local-app/app/postgres.py
@@ -0,0 +1,25 @@
+from __future__ import annotations
+
+from typing import Any
+
+import asyncpg
+from sqlalchemy.ext.asyncio import AsyncEngine, create_async_engine
+
+
+def asyncpg_dsn(url: str) -> str:
+    if url.startswith("postgresql+asyncpg://"):
+        return url.replace("postgresql+asyncpg://", "postgresql://", 1)
+    return url
+
+
+def create_postgres_engine(url: str, **engine_options: Any) -> AsyncEngine:
+    dsn = asyncpg_dsn(url)
+
+    async def connect():
+        return await asyncpg.connect(dsn=dsn)
+
+    return create_async_engine(
+        "postgresql+asyncpg://",
+        async_creator=connect,
+        **engine_options,
+    )
diff --git a/codebase/backend/bitrix-sync/alembic/env.py b/codebase/backend/bitrix-sync/alembic/env.py
index 16b454e..0a64091 100644
--- a/codebase/backend/bitrix-sync/alembic/env.py
+++ b/codebase/backend/bitrix-sync/alembic/env.py
@@ -2,10 +2,14 @@ import asyncio
 import os
 
 from alembic import context
-from sqlalchemy.ext.asyncio import async_engine_from_config
+from app.postgres import create_postgres_engine
 
 config = context.config
-config.set_main_option("sqlalchemy.url", os.environ["BITRIX_SYNC_DATABASE_URL"])
+database_url = os.environ["BITRIX_SYNC_DATABASE_URL"]
+config.set_main_option(
+    "sqlalchemy.url",
+    database_url.replace("%", "%%"),
+)
 target_metadata = None
 
 
@@ -16,7 +20,7 @@ def run_offline() -> None:
 
 
 async def run_online() -> None:
-    engine = async_engine_from_config(config.get_section(config.config_ini_section) or {})
+    engine = create_postgres_engine(database_url)
     async with engine.connect() as connection:
         await connection.run_sync(do_run)
     await engine.dispose()
diff --git a/codebase/backend/bitrix-sync/app/main.py b/codebase/backend/bitrix-sync/app/main.py
index 890407b..ad22f27 100644
--- a/codebase/backend/bitrix-sync/app/main.py
+++ b/codebase/backend/bitrix-sync/app/main.py
@@ -16,7 +16,9 @@ from fastapi.responses import JSONResponse
 from pydantic import Field, model_validator
 from pydantic_settings import BaseSettings, SettingsConfigDict
 from sqlalchemy import text
-from sqlalchemy.ext.asyncio import AsyncEngine, create_async_engine
+from sqlalchemy.ext.asyncio import AsyncEngine
+
+from app.postgres import create_postgres_engine
 
 
 def utcnow() -> datetime:
@@ -79,12 +81,6 @@ class DatabaseProbe:
         await self.engine.dispose()
 
 
-def database_url(value: str) -> str:
-    if value.startswith("postgresql://"):
-        return value.replace("postgresql://", "postgresql+asyncpg://", 1)
-    return value
-
-
 def classify_error(exc: Exception) -> str:
     name = type(exc).__name__.lower()
     text_value = str(exc).lower()
@@ -119,13 +115,13 @@ def create_app(settings: Settings | None = None, probe: Probe | None = None) ->
         app.state.loop_task = None
         if cfg.bitrix_sync_enabled:
             if app.state.probe is None:
-                engine = create_async_engine(
-                    database_url(cfg.bitrix_sync_database_url or ""),
+                engine = create_postgres_engine(
+                    cfg.bitrix_sync_database_url or "",
                     pool_size=cfg.bitrix_sync_db_pool_size,
                     max_overflow=0,
                     pool_pre_ping=True,
                     pool_recycle=cfg.bitrix_sync_db_pool_recycle_sec,
-                    connect_args={"server_settings": {"application_name": "han-bitrix-sync"}},
+                    server_settings={"application_name": "han-bitrix-sync"},
                 )
                 app.state.probe = DatabaseProbe(engine)
             await run_probe(app)
diff --git a/codebase/backend/bitrix-sync/app/postgres.py b/codebase/backend/bitrix-sync/app/postgres.py
new file mode 100644
index 0000000..33ce24a
--- /dev/null
+++ b/codebase/backend/bitrix-sync/app/postgres.py
@@ -0,0 +1,30 @@
+from __future__ import annotations
+
+from typing import Any
+
+import asyncpg
+from sqlalchemy.ext.asyncio import AsyncEngine, create_async_engine
+
+
+def asyncpg_dsn(url: str) -> str:
+    if url.startswith("postgresql+asyncpg://"):
+        return url.replace("postgresql+asyncpg://", "postgresql://", 1)
+    return url
+
+
+def create_postgres_engine(
+    url: str,
+    *,
+    server_settings: dict[str, str] | None = None,
+    **engine_options: Any,
+) -> AsyncEngine:
+    dsn = asyncpg_dsn(url)
+
+    async def connect():
+        return await asyncpg.connect(dsn=dsn, server_settings=server_settings)
+
+    return create_async_engine(
+        "postgresql+asyncpg://",
+        async_creator=connect,
+        **engine_options,
+    )
diff --git a/codebase/backend/deployment/DEPLOYMENT_GUIDE.ru.md b/codebase/backend/deployment/DEPLOYMENT_GUIDE.ru.md
index 518e2b6..6a886da 100644
--- a/codebase/backend/deployment/DEPLOYMENT_GUIDE.ru.md
+++ b/codebase/backend/deployment/DEPLOYMENT_GUIDE.ru.md
@@ -300,16 +300,23 @@ HAN_PG_PORT=6432
 HAN_PG_DATABASE=han_chat
 PG_CA_HOST_PATH=/opt/han-chat/backend/secrets/pg/ca.pem
 
-DATABASE_URL=postgresql+asyncpg://han_app:<PASSWORD>@<PG_HOST>:6432/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem&options=-csearch_path%3Dhan_app
-BITRIX_DATABASE_URL=postgresql://bitrix_local_app:<PASSWORD>@<PG_HOST>:6432/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem&options=-csearch_path%3Dbitrix_local
-BITRIX_SYNC_DATABASE_URL=postgresql://bitrix_sync_user:<PASSWORD>@<PG_HOST>:6432/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem&options=-csearch_path%3Dbitrix_sync
-MESSAGE_SAFETY_DATABASE_URL=postgresql://message_safety_app:<PASSWORD>@<PG_HOST>:6432/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem&options=-csearch_path%3Dmessage_safety
+DATABASE_URL=postgresql+asyncpg://han_app:<PASSWORD>@<PG_HOST>:5433/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem
+BITRIX_DATABASE_URL=postgresql://bitrix_local_app:<PASSWORD>@<PG_HOST>:5433/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem
+BITRIX_SYNC_DATABASE_URL=postgresql://bitrix_sync_user:<PASSWORD>@<PG_HOST>:5433/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem
+MESSAGE_SAFETY_DATABASE_URL=postgresql://message_safety_app:<PASSWORD>@<PG_HOST>:5433/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem
 
-KEYCLOAK_DB_URL=jdbc:postgresql://<PG_HOST>:6432/han_chat?currentSchema=keycloak&sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem
+KEYCLOAK_DB_URL=jdbc:postgresql://<PG_HOST>:5433/han_chat?sslmode=verify-full&sslrootcert=/run/secrets/pg-ca.pem
+KEYCLOAK_DB_SCHEMA=keycloak
 KEYCLOAK_DB_USERNAME=keycloak_user
 KEYCLOAK_DB_PASSWORD=<PASSWORD>
 ```
 
+Порт `5433` используется с PgBouncer в режиме `session`. Не добавляйте
+`options=-csearch_path...` или JDBC-параметр `currentSchema`: они передают
+startup parameter `search_path`, который Selectel PgBouncer отклоняет. Для
+Keycloak схема задаётся отдельно через `KEYCLOAK_DB_SCHEMA`.
+Для каждой сервисной роли заранее задайте database-level `search_path`.
+
 Если пароль содержит `@`, `:`, `/`, `?`, `#` или `%`, его необходимо
 URL-кодировать внутри PostgreSQL URL.
 
diff --git a/codebase/backend/deployment/docker-compose.jobs.yml b/codebase/backend/deployment/docker-compose.jobs.yml
index 805c9bb..7edeb51 100644
--- a/codebase/backend/deployment/docker-compose.jobs.yml
+++ b/codebase/backend/deployment/docker-compose.jobs.yml
@@ -9,7 +9,7 @@ services:
     command: ["alembic", "upgrade", "head"]
     volumes:
       - ${PG_CA_HOST_PATH}:/run/secrets/pg-ca.pem:ro
-    networks: [backend]
+    networks: [backend, egress]
     restart: "no"
     security_opt: ["no-new-privileges:true"]
 
@@ -23,7 +23,7 @@ services:
     command: ["alembic", "upgrade", "head"]
     volumes:
       - ${PG_CA_HOST_PATH}:/run/secrets/pg-ca.pem:ro
-    networks: [backend]
+    networks: [backend, egress]
     restart: "no"
     security_opt: ["no-new-privileges:true"]
 
@@ -37,7 +37,7 @@ services:
     command: ["alembic", "upgrade", "head"]
     volumes:
       - ${PG_CA_HOST_PATH}:/run/secrets/pg-ca.pem:ro
-    networks: [backend]
+    networks: [backend, egress]
     restart: "no"
     security_opt: ["no-new-privileges:true"]
 
@@ -58,7 +58,7 @@ services:
     volumes:
       - ${PG_CA_HOST_PATH}:/run/secrets/pg-ca.pem:ro
       - ./app-settings.production-like.yaml:/deployment/app-settings.production-like.yaml:ro
-    networks: [backend]
+    networks: [backend, egress]
     restart: "no"
     security_opt: ["no-new-privileges:true"]
 
@@ -66,7 +66,7 @@ services:
     image: curlimages/curl:8.11.1
     profiles: ["ops"]
     entrypoint: ["sleep", "infinity"]
-    networks: [backend, observability]
+    networks: [backend, observability, egress]
     restart: "no"
     cap_drop: ["ALL"]
     security_opt: ["no-new-privileges:true"]
diff --git a/codebase/backend/deployment/scripts/smoke.sh b/codebase/backend/deployment/scripts/smoke.sh
index 119f10c..b9496b7 100644
--- a/codebase/backend/deployment/scripts/smoke.sh
+++ b/codebase/backend/deployment/scripts/smoke.sh
@@ -4,9 +4,32 @@ cd "$(dirname "$0")/../.."
 
 ENV_FILE=${ENV_FILE:-.env}
 ./scripts/validate-env "$ENV_FILE"
-set -a
-. "./$ENV_FILE"
-set +a
+
+env_value() {
+  python3 - "$ENV_FILE" "$1" <<'PY'
+import sys
+from pathlib import Path
+
+path, wanted = sys.argv[1:]
+for raw in Path(path).read_text(encoding="utf-8").splitlines():
+    line = raw.strip()
+    if not line or line.startswith("#") or "=" not in line:
+        continue
+    key, value = line.split("=", 1)
+    if key.strip() == wanted:
+        value = value.strip()
+        if len(value) >= 2 and value[0] == value[-1] and value[0] in "\"'":
+            value = value[1:-1]
+        print(value)
+        break
+else:
+    raise SystemExit(f"missing environment variable: {wanted}")
+PY
+}
+
+PUBLIC_HOST=$(env_value PUBLIC_HOST)
+PUBLIC_WEB_URL=$(env_value PUBLIC_WEB_URL)
+KEYCLOAK_REALM=$(env_value KEYCLOAK_REALM)
 
 tmp=$(mktemp -d)
 trap 'rm -rf "$tmp"' EXIT
diff --git a/codebase/backend/docker-compose.yml b/codebase/backend/docker-compose.yml
index 440addc..d16c2cc 100644
--- a/codebase/backend/docker-compose.yml
+++ b/codebase/backend/docker-compose.yml
@@ -13,6 +13,8 @@ networks:
   backend:
     name: han-chat-backend
     internal: true
+  egress:
+    name: han-chat-egress
   observability:
     name: han-chat-observability
     internal: true
diff --git a/codebase/backend/frontend-test-site/src/auth.ts b/codebase/backend/frontend-test-site/src/auth.ts
index 65f0da8..da3502a 100644
--- a/codebase/backend/frontend-test-site/src/auth.ts
+++ b/codebase/backend/frontend-test-site/src/auth.ts
@@ -40,7 +40,7 @@ const secureStore = {
 };
 
 const random = () => Crypto.randomUUID().replaceAll("-", "") + Crypto.randomUUID().replaceAll("-", "");
-const redirectUri = AuthSession.makeRedirectUri({ scheme: "han-chat", path: "auth/callback" });
+const redirectUri = AuthSession.makeRedirectUri({ scheme: "han-chat", path: "oauth/callback" });
 const tokenEndpoint = `${oidcIssuer}/protocol/openid-connect/token`;
 
 export function configureAuthFailure(callback: () => void) {
@@ -89,7 +89,7 @@ export async function beginAuthorization() {
     client_id: env.clientId,
     redirect_uri: redirectUri,
     response_type: "code",
-    scope: "openid profile offline_access",
+    scope: "openid offline_access",
     code_challenge: challenge,
     code_challenge_method: "S256",
     state,
diff --git a/codebase/backend/frontend-test-site/src/config.ts b/codebase/backend/frontend-test-site/src/config.ts
index e58646f..888f806 100644
--- a/codebase/backend/frontend-test-site/src/config.ts
+++ b/codebase/backend/frontend-test-site/src/config.ts
@@ -1,9 +1,12 @@
-const required = (name: string, fallback: string) =>
-  (process.env[name] ?? fallback).replace(/\/$/, "");
+const required = (value: string | undefined, fallback: string) =>
+  (value ?? fallback).replace(/\/$/, "");
 
 export const env = Object.freeze({
-  apiBaseUrl: required("EXPO_PUBLIC_API_BASE_URL", "http://localhost:8000"),
-  authBaseUrl: required("EXPO_PUBLIC_AUTH_BASE_URL", "http://localhost:8080/auth"),
+  apiBaseUrl: required(process.env.EXPO_PUBLIC_API_BASE_URL, "http://localhost:8000"),
+  authBaseUrl: required(
+    process.env.EXPO_PUBLIC_AUTH_BASE_URL,
+    "http://localhost:8080/auth",
+  ),
   realm: process.env.EXPO_PUBLIC_KEYCLOAK_REALM ?? "han-chat",
   clientId: process.env.EXPO_PUBLIC_KEYCLOAK_CLIENT_ID ?? "han-chat-frontend",
   appEnv: process.env.EXPO_PUBLIC_APP_ENV ?? "development",
diff --git a/codebase/backend/infra/compose/application.yml b/codebase/backend/infra/compose/application.yml
index b5efba8..b47b4c5 100644
--- a/codebase/backend/infra/compose/application.yml
+++ b/codebase/backend/infra/compose/application.yml
@@ -10,7 +10,7 @@ x-api-runtime: &api-runtime
       source: ${PG_CA_HOST_PATH}
       target: /run/secrets/pg-ca.pem
       read_only: true
-  networks: [backend, observability]
+  networks: [backend, observability, egress]
   security_opt: ["no-new-privileges:true"]
   logging:
     driver: json-file
@@ -47,6 +47,7 @@ services:
     environment:
       KC_DB: postgres
       KC_DB_URL: ${KEYCLOAK_DB_URL}
+      KC_DB_SCHEMA: ${KEYCLOAK_DB_SCHEMA:-keycloak}
       KC_DB_USERNAME: ${KEYCLOAK_DB_USERNAME}
       KC_DB_PASSWORD: ${KEYCLOAK_DB_PASSWORD}
       KC_PROXY_HEADERS: xforwarded
@@ -74,7 +75,7 @@ services:
         read_only: true
     networks: [public, backend, observability]
     healthcheck:
-      test: ["CMD-SHELL", "exec 3<>/dev/tcp/127.0.0.1/9000 && printf 'GET /health/ready HTTP/1.0\r\n\r\n' >&3 && grep -q '200 OK' <&3"]
+      test: ["CMD-SHELL", "exec 3<>/dev/tcp/127.0.0.1/9000 && printf 'GET /auth/health/ready HTTP/1.0\r\n\r\n' >&3 && grep -q '200 OK' <&3"]
       interval: 15s
       timeout: 5s
       retries: 12
@@ -98,7 +99,7 @@ services:
         source: ${PG_CA_HOST_PATH}
         target: /run/secrets/pg-ca.pem
         read_only: true
-    networks: [backend, observability]
+    networks: [backend, observability, egress]
     depends_on:
       redis: {condition: service_healthy}
     healthcheck:
@@ -185,7 +186,7 @@ services:
         source: ${PG_CA_HOST_PATH}
         target: /run/secrets/pg-ca.pem
         read_only: true
-    networks: [backend, observability]
+    networks: [backend, observability, egress]
     depends_on:
       api-backend: {condition: service_healthy}
     healthcheck:
@@ -213,7 +214,7 @@ services:
         source: ${PG_CA_HOST_PATH}
         target: /run/secrets/pg-ca.pem
         read_only: true
-    networks: [backend, observability]
+    networks: [backend, observability, egress]
     depends_on:
       redis: {condition: service_healthy}
     healthcheck:
diff --git a/codebase/backend/keycloak/Dockerfile b/codebase/backend/keycloak/Dockerfile
index fa07ee4..3a9f3bf 100644
--- a/codebase/backend/keycloak/Dockerfile
+++ b/codebase/backend/keycloak/Dockerfile
@@ -5,6 +5,7 @@ WORKDIR /build
 COPY pom.xml .
 RUN --mount=type=cache,target=/root/.m2 mvn -B -ntp dependency:go-offline
 COPY src ./src
+COPY realm ./realm
 RUN --mount=type=cache,target=/root/.m2 mvn -B -ntp clean verify
 
 FROM quay.io/keycloak/keycloak:26.1.4 AS keycloak-build
diff --git a/codebase/backend/keycloak/docker-compose.yml b/codebase/backend/keycloak/docker-compose.yml
index 9a24ae3..8b581cf 100644
--- a/codebase/backend/keycloak/docker-compose.yml
+++ b/codebase/backend/keycloak/docker-compose.yml
@@ -39,7 +39,7 @@ services:
       - backend
       - observability
     healthcheck:
-      test: ["CMD-SHELL", "exec 3<>/dev/tcp/127.0.0.1/9000 && printf 'GET /health/ready HTTP/1.1\\r\\nHost: localhost\\r\\nConnection: close\\r\\n\\r\\n' >&3 && grep -q '200 OK' <&3"]
+      test: ["CMD-SHELL", "exec 3<>/dev/tcp/127.0.0.1/9000 && printf 'GET /auth/health/ready HTTP/1.1\\r\\nHost: localhost\\r\\nConnection: close\\r\\n\\r\\n' >&3 && grep -q '200 OK' <&3"]
       interval: 15s
       timeout: 5s
       retries: 12
diff --git a/codebase/backend/keycloak/realm/han-chat-realm.json b/codebase/backend/keycloak/realm/han-chat-realm.json
index d241577..644b998 100644
--- a/codebase/backend/keycloak/realm/han-chat-realm.json
+++ b/codebase/backend/keycloak/realm/han-chat-realm.json
@@ -60,23 +60,21 @@
       "frontchannelLogout": true,
       "fullScopeAllowed": false,
       "redirectUris": [
-        "https://tohin.ru/auth/callback",
-        "han-chat://auth/callback",
-        "https://APP_LINK_HOST.example/auth/callback"
+        "https://chat.han0107.ru/oauth/callback",
+        "han-chat://auth/callback"
       ],
       "webOrigins": [
-        "https://tohin.ru",
-        "https://APP_WEB_ORIGIN.example"
+        "https://chat.han0107.ru"
       ],
       "attributes": {
         "pkce.code.challenge.method": "S256",
-        "post.logout.redirect.uris": "https://tohin.ru/##han-chat://auth/logout##https://APP_LINK_HOST.example/auth/logout",
+        "post.logout.redirect.uris": "https://chat.han0107.ru/##han-chat://auth/logout",
         "oauth2.device.authorization.grant.enabled": "false",
         "oidc.ciba.grant.enabled": "false",
         "use.refresh.tokens": "true",
         "client.use.lightweight.access.token.enabled": "false"
       },
-      "defaultClientScopes": ["openid", "profile", "phone", "han-chat-api"],
+      "defaultClientScopes": ["phone", "han-chat-api"],
       "optionalClientScopes": ["offline_access"]
     }
   ],
diff --git a/codebase/backend/nginx/docker-compose.yml b/codebase/backend/nginx/docker-compose.yml
index ce39b94..6712349 100644
--- a/codebase/backend/nginx/docker-compose.yml
+++ b/codebase/backend/nginx/docker-compose.yml
@@ -48,9 +48,9 @@ services:
     read_only: true
     tmpfs:
       - /tmp:size=128m,mode=1777
-      - /etc/nginx/generated:size=4m,mode=0755,uid=101,gid=101
+      - /etc/nginx/generated:size=4m,mode=0755,uid=0,gid=0
     cap_drop: ["ALL"]
-    cap_add: ["NET_BIND_SERVICE", "SETUID", "SETGID"]
+    cap_add: ["CHOWN", "NET_BIND_SERVICE", "SETUID", "SETGID"]
     security_opt: ["no-new-privileges:true"]
     extra_hosts:
       - "host.docker.internal:host-gateway"
diff --git a/codebase/backend/nginx/nginx.conf.template b/codebase/backend/nginx/nginx.conf.template
index ea1cf7c..4e7c3cb 100644
--- a/codebase/backend/nginx/nginx.conf.template
+++ b/codebase/backend/nginx/nginx.conf.template
@@ -1,3 +1,4 @@
+user nginx;
 worker_processes auto;
 pid /tmp/nginx.pid;
 error_log /dev/stderr warn;
@@ -11,6 +12,9 @@ http {
     default_type application/octet-stream;
     server_tokens off;
     charset utf-8;
+    proxy_connect_timeout 3s;
+    proxy_send_timeout 30s;
+    proxy_read_timeout 30s;
 
     map $http_upgrade $connection_upgrade {
         default upgrade;
diff --git a/codebase/backend/nginx/snippets/proxy-common.conf b/codebase/backend/nginx/snippets/proxy-common.conf
index b5f7229..22c4e65 100644
--- a/codebase/backend/nginx/snippets/proxy-common.conf
+++ b/codebase/backend/nginx/snippets/proxy-common.conf
@@ -11,6 +11,3 @@ proxy_hide_header X-Powered-By;
 proxy_hide_header Server;
 add_header X-Request-ID $edge_request_id always;
 include /etc/nginx/generated/security-headers.conf;
-proxy_connect_timeout 3s;
-proxy_send_timeout 30s;
-proxy_read_timeout 30s;
diff --git a/codebase/backend/nginx/snippets/proxy-keycloak.conf b/codebase/backend/nginx/snippets/proxy-keycloak.conf
new file mode 100644
index 0000000..955fb19
--- /dev/null
+++ b/codebase/backend/nginx/snippets/proxy-keycloak.conf
@@ -0,0 +1,12 @@
+proxy_http_version 1.1;
+proxy_set_header Host $host;
+proxy_set_header X-Real-IP $remote_addr;
+proxy_set_header X-Forwarded-For $remote_addr;
+proxy_set_header X-Forwarded-Proto https;
+proxy_set_header X-Forwarded-Host $host;
+proxy_set_header X-Forwarded-Port 443;
+proxy_set_header X-Request-ID $edge_request_id;
+proxy_set_header traceparent $http_traceparent;
+proxy_hide_header X-Powered-By;
+proxy_hide_header Server;
+add_header X-Request-ID $edge_request_id always;
diff --git a/codebase/backend/nginx/templates/site-tls.conf.template b/codebase/backend/nginx/templates/site-tls.conf.template
index c136ca4..6fe513b 100644
--- a/codebase/backend/nginx/templates/site-tls.conf.template
+++ b/codebase/backend/nginx/templates/site-tls.conf.template
@@ -97,9 +97,17 @@ server {
         proxy_pass http://api_backend;
     }
 
-    location ^~ /auth/ {
+    location ^~ /auth/resources/ {
+        include /etc/nginx/snippets/proxy-keycloak.conf;
+        proxy_pass http://keycloak_upstream;
+    }
+    location ~ ^/auth/realms/[^/]+/protocol/openid-connect/3p-cookies/ {
+        include /etc/nginx/snippets/proxy-keycloak.conf;
+        proxy_pass http://keycloak_upstream;
+    }
+    location /auth/ {
         limit_req zone=auth burst=10;
-        include /etc/nginx/snippets/proxy-common.conf;
+        include /etc/nginx/snippets/proxy-keycloak.conf;
         proxy_read_timeout 60s;
         proxy_pass http://keycloak_upstream;
     }
diff --git a/codebase/backend/observability/docker-compose.yml b/codebase/backend/observability/docker-compose.yml
index dd5b65b..565f0eb 100644
--- a/codebase/backend/observability/docker-compose.yml
+++ b/codebase/backend/observability/docker-compose.yml
@@ -23,7 +23,7 @@ services:
     volumes:
       - ./otel-collector.yaml:/etc/otelcol/config.yaml:ro
       - otel-queue:/var/lib/otelcol/queue
-    networks: [observability, backend]
+    networks: [observability, backend, egress]
     depends_on:
       otel-queue-init: {condition: service_completed_successfully}
     healthcheck:
diff --git a/codebase/backend/scripts/validate-env b/codebase/backend/scripts/validate-env
index 1f1bede..4a2cb13 100644
--- a/codebase/backend/scripts/validate-env
+++ b/codebase/backend/scripts/validate-env
@@ -29,7 +29,7 @@ REQUIRED = {
 SECRET_KEYS = {
     key for key in REQUIRED
     if any(word in key for word in ("TOKEN", "PASSWORD", "SECRET_KEY", "ACCESS_KEY"))
-} | {"KEYCLOAK_OTP_MOCK_CODE", "BITRIX_CLIENT_SECRET", "BITRIX_APPLICATION_TOKEN"}
+} | {"BITRIX_CLIENT_SECRET", "BITRIX_APPLICATION_TOKEN"}
 PLACEHOLDER = re.compile(r"(change-me|example\.(com|ru|invalid)|<[^>]+>)", re.I)
 
 
diff --git a/codebase/backend/tests/test_config.py b/codebase/backend/tests/test_config.py
index 01934eb..29cdd75 100644
--- a/codebase/backend/tests/test_config.py
+++ b/codebase/backend/tests/test_config.py
@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import ast
 import subprocess
 import sys
 import tempfile
@@ -10,6 +11,20 @@ ROOT = Path(__file__).resolve().parents[1]
 
 
 class InfrastructureConfigTests(unittest.TestCase):
+    def test_structlog_event_is_not_passed_twice(self) -> None:
+        log_methods = {"debug", "info", "warning", "error", "exception", "critical"}
+        for source_path in (ROOT / "api-backend/app").rglob("*.py"):
+            tree = ast.parse(source_path.read_text(encoding="utf-8"), filename=str(source_path))
+            for node in ast.walk(tree):
+                if (
+                    isinstance(node, ast.Call)
+                    and isinstance(node.func, ast.Attribute)
+                    and node.func.attr in log_methods
+                    and node.args
+                    and any(keyword.arg == "event" for keyword in node.keywords)
+                ):
+                    self.fail(f"duplicate structlog event in {source_path}:{node.lineno}")
+
     def test_root_compose_uses_only_infra_fragments(self) -> None:
         compose = (ROOT / "docker-compose.yml").read_text(encoding="utf-8")
         for fragment in (
@@ -22,6 +37,23 @@ class InfrastructureConfigTests(unittest.TestCase):
             self.assertIn(fragment, compose)
         self.assertNotIn("postgres:", compose.lower())
 
+    def test_external_dependencies_use_dedicated_egress_network(self) -> None:
+        root = (ROOT / "docker-compose.yml").read_text(encoding="utf-8")
+        self.assertIn("egress:\n    name: han-chat-egress", root)
+
+        application = (ROOT / "infra/compose/application.yml").read_text(encoding="utf-8")
+        self.assertIn("networks: [backend, observability, egress]", application)
+        self.assertIn("networks: [public, backend, observability]", application)
+
+        jobs = (ROOT / "deployment/docker-compose.jobs.yml").read_text(encoding="utf-8")
+        self.assertEqual(jobs.count("networks: [backend, egress]"), 4)
+
+        observability = (ROOT / "observability/docker-compose.yml").read_text(encoding="utf-8")
+        self.assertIn("networks: [observability, backend, egress]", observability)
+
+        redis = (ROOT / "redis/docker-compose.yml").read_text(encoding="utf-8")
+        self.assertNotIn("egress", redis)
+
     def test_only_nginx_fragment_publishes_ports(self) -> None:
         forbidden = (
             ROOT / "infra/compose/application.yml",
@@ -38,6 +70,12 @@ class InfrastructureConfigTests(unittest.TestCase):
 
     def test_nginx_internal_denies_precede_spa(self) -> None:
         site = (ROOT / "nginx/templates/site-tls.conf.template").read_text(encoding="utf-8")
+        compose = (ROOT / "nginx/docker-compose.yml").read_text(encoding="utf-8")
+        config = (ROOT / "nginx/nginx.conf.template").read_text(encoding="utf-8")
+        proxy_common = (ROOT / "nginx/snippets/proxy-common.conf").read_text(encoding="utf-8")
+        proxy_keycloak = (ROOT / "nginx/snippets/proxy-keycloak.conf").read_text(
+            encoding="utf-8"
+        )
         internal = site.index("location ^~ /internal/")
         api = site.index("location ^~ /api/")
         frontend = site.index("include /etc/nginx/generated/frontend-location.conf")
@@ -45,6 +83,17 @@ class InfrastructureConfigTests(unittest.TestCase):
         self.assertLess(api, frontend)
         self.assertIn("location = /api/v1/realtime", site)
         self.assertNotIn("message-safety:", site)
+        self.assertIn("uid=0,gid=0", compose)
+        self.assertIn('cap_add: ["CHOWN", "NET_BIND_SERVICE", "SETUID", "SETGID"]', compose)
+        self.assertTrue(config.startswith("user nginx;\n"))
+        self.assertIn("proxy_read_timeout 30s;", config)
+        self.assertNotIn("proxy_read_timeout", proxy_common)
+        self.assertNotIn("proxy_send_timeout", proxy_common)
+        self.assertIn("include /etc/nginx/snippets/proxy-keycloak.conf;", site)
+        self.assertIn("location ^~ /auth/resources/", site)
+        self.assertIn("protocol/openid-connect/3p-cookies/", site)
+        self.assertNotIn("security-headers.conf", proxy_keycloak)
+        self.assertNotIn("X-Frame-Options", proxy_keycloak)
 
     def test_redis_persistence_acl_and_no_host_port(self) -> None:
         config = (ROOT / "redis/redis.conf").read_text(encoding="utf-8")
@@ -94,13 +143,42 @@ class InfrastructureConfigTests(unittest.TestCase):
         nginx = (ROOT / "nginx/docker-compose.yml").read_text(encoding="utf-8")
         self.assertIn("frontend-static: {condition: service_completed_successfully}", nginx)
 
+    def test_smoke_script_does_not_source_env_as_shell(self) -> None:
+        smoke = (ROOT / "deployment/scripts/smoke.sh").read_text(encoding="utf-8")
+        self.assertNotIn('. "./$ENV_FILE"', smoke)
+        for variable in ("PUBLIC_HOST", "PUBLIC_WEB_URL", "KEYCLOAK_REALM"):
+            self.assertIn(f"{variable}=$(env_value {variable})", smoke)
+
+    def test_expo_public_environment_uses_static_property_access(self) -> None:
+        config = (ROOT / "frontend-test-site/src/config.ts").read_text(encoding="utf-8")
+        self.assertNotIn("process.env[name]", config)
+        self.assertIn("process.env.EXPO_PUBLIC_API_BASE_URL", config)
+        self.assertIn("process.env.EXPO_PUBLIC_AUTH_BASE_URL", config)
+
+    def test_alembic_escapes_percent_encoded_dsn_options(self) -> None:
+        for relative_path in (
+            "api-backend/alembic/env.py",
+            "bitrix-local-app/alembic/env.py",
+            "bitrix-sync/alembic/env.py",
+        ):
+            env_script = (ROOT / relative_path).read_text(encoding="utf-8")
+            self.assertIn('.replace("%", "%%")', env_script, relative_path)
+            self.assertIn("create_postgres_engine", env_script, relative_path)
+
     def test_keycloak_management_health_and_bridge_environment(self) -> None:
         standalone = (ROOT / "keycloak/docker-compose.yml").read_text(encoding="utf-8")
-        self.assertIn("GET /health/ready", standalone)
-        self.assertNotIn("GET /auth/health/ready", standalone)
+        self.assertIn("GET /auth/health/ready", standalone)
+
+        dockerfile = (ROOT / "keycloak/Dockerfile").read_text(encoding="utf-8")
+        self.assertLess(
+            dockerfile.index("COPY realm ./realm"),
+            dockerfile.index("mvn -B -ntp clean verify"),
+        )
 
         application = (ROOT / "infra/compose/application.yml").read_text(encoding="utf-8")
+        self.assertIn("GET /auth/health/ready", application)
         for variable in (
+            "KC_DB_SCHEMA",
             "KEYCLOAK_OTP_MOCK_ENABLED",
             "KEYCLOAK_OTP_MOCK_CODE",
             "KEYCLOAK_OTP_HMAC_KEY",
@@ -114,6 +192,10 @@ class InfrastructureConfigTests(unittest.TestCase):
 
     def test_env_validator_accepts_materialized_example(self) -> None:
         example = (ROOT / ".env.example").read_text(encoding="utf-8")
+        self.assertNotIn("options=-csearch_path", example)
+        self.assertNotIn("currentSchema=", example)
+        self.assertIn("KEYCLOAK_DB_SCHEMA=keycloak", example)
+        self.assertIn("HAN_PG_PORT=5433", example)
         for required in (
             "CURSOR_HMAC_SECRET=",
             "BITRIX_TOKEN_ENCRYPTION_KEY=",
diff --git a/deploy-steps.md b/deploy-steps.md
index b50b26b..da2ae66 100644
--- a/deploy-steps.md
+++ b/deploy-steps.md
@@ -10,6 +10,21 @@
 
 Туннель до БД: ssh -i C:\Users\MI\.ssh\hansel -L 5433:192.168.0.211:5433 root@135.106.164.58 -N
 
+#Обновление проекта
+
+cd /tmp
+rm han-chat-backend.tar.gz
+cd /opt/han-chat/backend
+
+rm C:\Users\MI\Documents\Assistent\han-chat-backend.tar.gz
+tar -C HAN_chat_specification/codebase/backend -czf han-chat-backend.tar.gz .
+scp -i C:\Users\MI\.ssh\hansel C:\Users\MI\Documents\Assistent\han-chat-backend.tar.gz root@135.106.164.58:/tmp/han-chat-backend.tar.gz 
+
+tar -xzf /tmp/han-chat-backend.tar.gz
+find . -type f \( -name '*.sh' -o -name 'validate-env' \) -exec dos2unix {} +
+chmod +x scripts/validate-env deployment/scripts/*.sh redis/scripts/*.sh nginx/scripts/*.sh
+
+
 # Разворачиваем инфраструктуру в Селектел ч1
 
 ## Создание сети
@@ -44,6 +59,11 @@ ssh -i C:\Users\MI\.ssh\han_chat_deploy deploy@135.106.164.58
 tar -C HAN_chat_specification/codebase/backend -czf han-chat-backend.tar.gz .
 scp -i C:\Users\MI\.ssh\han_chat_deploy C:\Users\MI\Documents\Assistent\han-chat-backend.tar.gz deploy@135.106.164.58:/tmp/
 
+scp -i C:\Users\MI\.ssh\hansel C:\Users\MI\Documents\Assistent\han-chat-backend.tar.gz root@135.106.164.58:/tmp/
+
+
+
+
 ## Дальше распаковка
 cd /opt/han-chat/backend
 tar -xzf /tmp/han-chat-backend.tar.gz
@@ -201,3 +221,74 @@ resolvectl domain eth0 '~.'
 resolvectl flush-caches
 resolvectl query pypi.org
 
+# Подготовка к запуску
+
+Сертификат рекомендуется скопировать в папку с секретами
+cp /root/.postgresql/root.crt /opt/han-chat/backend/secrets/pg/root.crt
+chmod 644 /opt/han-chat/backend/secrets/pg/root.crt
+
+В битрикс регистрируем локальное приложение:
+Установка:   https://chat.example.ru/bitrix/install
+Обработчик:  https://chat.example.ru/bitrix/handler
+??? (не понадобилось) Placement:   https://chat.example.ru/bitrix/placement
+
+--настраиваю env на локальной машине и копирую на диск
+scp -i C:\Users\MI\.ssh\hansel -r "C:\Users\MI\Documents\job\HAN_new_life\HANapp\Production\.env" root@135.106.164.58:/opt/han-chat/backend
+
+--Проверка .env
+cd /opt/han-chat/backend
+chmod 600 .env
+./scripts/validate-env .env
+docker compose --env-file .env config --quiet
+docker compose --env-file .env config --services
+python3 -m unittest discover -s tests -v
+
+--Проверка портов (Публиковаться должны только 80 и 443 у nginx)
+docker compose --env-file .env config | grep -n 'published:'
+
+--Собираем локальные образы:
+docker compose --env-file .env build --pull
+
+docker compose --env-file .env images
+
+## Миграции БД и начальные настройки
+cd /opt/han-chat/backend
+PITR_MARKER_CONFIRMED=true deployment/scripts/migrate.sh
+deployment/scripts/seed.sh
+
+## Запуск внутренних сервисов
+
+Сначала запустите Redis:
+
+```sh
+docker compose --env-file .env up -d redis
+docker compose --env-file .env ps redis
+```
+
+Затем Keycloak и OpenTelemetry:
+
+```sh
+docker compose --env-file .env up -d keycloak otel-collector
+docker compose --env-file .env ps keycloak otel-collector
+```
+
+Первый запуск Keycloak может занять несколько минут: он создаст свои таблицы и
+импортирует realm `han-chat`.
+
+После готовности Keycloak:
+
+```sh
+docker compose --env-file .env up -d message-safety
+docker compose --env-file .env up -d api-backend
+docker compose --env-file .env up -d bitrix-local-app bitrix-sync
+docker compose --env-file .env up -d \
+  delivery-worker safety-recovery-worker cleanup-worker
+docker compose --env-file .env ps
+```
+
+Если сервис не становится healthy:
+
+```sh
+docker compose --env-file .env logs --tail=200 <SERVICE_NAME>
+docker inspect "$(docker compose --env-file .env ps -q <SERVICE_NAME>)"
+```
diff --git a/han-chat-backend.tar.gz b/han-chat-backend.tar.gz
new file mode 100644
index 0000000..e69de29
diff --git a/modules/module-07-bitrix-sync.md b/modules/module-07-bitrix-sync.md
index 9407e63..c43713c 100644
--- a/modules/module-07-bitrix-sync.md
+++ b/modules/module-07-bitrix-sync.md
@@ -290,7 +290,7 @@ Managed init уже создаёт:
 APP_ENV=production-like
 LOG_LEVEL=INFO
 BITRIX_SYNC_ENABLED=true
-BITRIX_SYNC_DATABASE_URL=postgresql://bitrix_sync_user:.../han_chat?options=-csearch_path%3Dbitrix_sync
+BITRIX_SYNC_DATABASE_URL=postgresql://bitrix_sync_user:.../han_chat
 BITRIX_SYNC_SERVICE_TOKEN=<secret>
 OTEL_EXPORTER_OTLP_ENDPOINT=http://otel-collector:4317
 ```