fix: Adjust date filter to 1st of month 12 months back

v1.3.136:
- Changed filter from 365 days to exactly 12 months
- Uses 1st day of the month 12 months ago
- Example: Jan 27, 2026 -> fetches from Feb 1, 2025

VERSION

@@ -1 +1 @@
-1.3.135
+1.3.136

app/services/economic_service.py

@@ -450,9 +450,18 @@ class EconomicService:
             List of invoice records with lines from the last year
         """
         try:
-            # Calculate date 1 year ago
-            one_year_ago = (datetime.now() - timedelta(days=365)).strftime('%Y-%m-%d')
-            logger.info(f"📅 Fetching invoices from {one_year_ago} onwards (1 year filter)")
+            # Calculate first day of the month 12 months ago
+            now = datetime.now()
+            # Go back 12 months
+            if now.month > 12:
+                start_month = now.month - 12
+                start_year = now.year
+            else:
+                start_month = 12 - (12 - now.month)
+                start_year = now.year - 1
+            
+            start_date = datetime(start_year, start_month, 1).strftime('%Y-%m-%d')
+            logger.info(f"📅 Fetching invoices from {start_date} onwards (12 months from 1st of month)")
             
             async with aiohttp.ClientSession() as session:
                 # Try multiple endpoints to find invoices
@@ -483,7 +492,7 @@ class EconomicService:
                                 params={
                                     "pagesize": 1000, 
                                     "skippages": page,
-                                    "filter": f"date$gte:{one_year_ago}"
+                                    "filter": f"date$gte:{start_date}"
                                 },
                                 headers=self._get_headers()
                             ) as response: