fix empty base on 1st start

app.py

@@ -1,5 +1,6 @@
 import os
 from flask import Flask, session, request
+from sqlalchemy import inspect
 from dotenv import load_dotenv
 
 # 1. Загрузка переменных окружения - в самом верху
@@ -62,26 +63,29 @@ def create_app():
     login_manager.login_message_category = "info"
 
     with app.app_context():
-        from models import User, UserConfig
-        all_configs = UserConfig.query.all()
-        for config in all_configs:
-            user_id = config.user_id
-            mappings = config.mappings
-            for sheer_title, params in mappings.items():
-                cron_schedule = params.get('schedule_cron')
-                if cron_schedule:
-                    job_id = f"user_{user_id}_sheet_{sheer_title}"
-                    try:
-                        scheduler.add_job(
-                            id=job_id,
-                            func=execute_olap_export,
-                            trigger='cron',
-                            args=[user_id, sheer_title],
-                            **_parse_cron_string(cron_schedule)
-                        )
-                        app.logger.info(f"Job {job_id} loaded on startup.")
-                    except Exception as e:
-                        app.logger.error(f"Failed to load job {job_id}: {e}")
+        if inspect(db.engine).has_table('user_config'):
+            from models import User, UserConfig
+            all_configs = UserConfig.query.all()
+            for config in all_configs:
+                user_id = config.user_id
+                mappings = config.mappings
+                for sheer_title, params in mappings.items():
+                    cron_schedule = params.get('schedule_cron')
+                    if cron_schedule:
+                        job_id = f"user_{user_id}_sheet_{sheer_title}"
+                        try:
+                            scheduler.add_job(
+                                id=job_id,
+                                func=execute_olap_export,
+                                trigger='cron',
+                                args=[user_id, sheer_title],
+                                **_parse_cron_string(cron_schedule)
+                            )
+                            app.logger.info(f"Job {job_id} loaded on startup.")
+                        except Exception as e:
+                            app.logger.error(f"Failed to load job {job_id}: {e}")
+        else:
+            app.logger.warning("Database tables not found. Skipping job loading on startup. Run 'flask init-db' to create the tables.")
     scheduler.start()
 
     # --- Регистрация команд CLI ---