fix: use clickhouse-connect HTTP host/port instead of a native-protocol DSN string

.env.example

@@ -1,4 +1,5 @@
-CLICKHOUSE_URL=
+CLICKHOUSE_HOST=
+CLICKHOUSE_PORT=8123
 CLICKHOUSE_USER=default
 CLICKHOUSE_PASSWORD=
 CLICKHOUSE_DATABASE=intelligence

app/clickhouse.py

@@ -5,7 +5,8 @@ from app.config import settings
 
 def get_client():
     return clickhouse_connect.get_client(
-        dsn=settings.clickhouse_url,
+        host=settings.clickhouse_host,
+        port=settings.clickhouse_port,
         username=settings.clickhouse_user,
         password=settings.clickhouse_password,
         database=settings.clickhouse_database,

app/config.py

@@ -2,7 +2,8 @@ from pydantic_settings import BaseSettings
 
 
 class Settings(BaseSettings):
-    clickhouse_url: str = ""
+    clickhouse_host: str = "localhost"
+    clickhouse_port: int = 8123
     clickhouse_user: str = "default"
     clickhouse_password: str = ""
     clickhouse_database: str = "intelligence"