fix: finance upload filepath bug and add extra_hosts for keycloak auth flow

- fix NameError: filepath undefined in trigger_airflow call (use filepath_stored)
- add extra_hosts ai.sriphat.com:192.168.100.8 for container DNS resolution
  (required for KEYCLOAK_SERVER_URL=http://ai.sriphat.com/keycloak/ to work
   inside Docker — host nginx on .8:80 routes /keycloak/ to Keycloak container)

03-apiservice/app/routes/pages.py

@@ -175,7 +175,7 @@ async def upload_finance_file(
             
             result = await airflow_client.trigger_finance_dag(
                 upload_id=upload_id,
-                filepath=str(filepath),
+                filepath=str(filepath_stored),
                 filename=file.filename,
                 uploaded_by=username,
                 description=description

03-apiservice/docker-compose.yml

@@ -1,6 +1,7 @@
 x-common-configs: &common-config
   extra_hosts:
     - "dev.sriphat.com:192.168.100.9"
+    - "ai.sriphat.com:192.168.100.8"
   pull_policy: ${DOCKER_PULL_POLICY:-missing}
 
 services: