feat: Implement core application structure, AI extraction, persistence, and Telegram bot modules with updated configuration and dependencies.

app/schema/report.py

@@ -0,0 +1,18 @@
+"""
+Pydantic schemas for reports or summaries.
+"""
+from pydantic import BaseModel
+from typing import List
+from datetime import date
+
+class ExpenseReport(BaseModel):
+    """
+    Represents a summary or report of multiple expenses.
+    """
+    report_name: str
+    start_date: date
+    end_date: date
+    total_amount: float
+    expense_count: int
+    # In a real app, you'd link to the actual expense models
+    expenses: List[int]