Add hide_missing_ids filter to transaction queries

- Add hide_missing_ids parameter to database functions to filter out transactions without internalTransactionId
- Update API routes to support the new filter parameter
- Update unit tests to include the new parameter
- Add opencode.json configuration file

leggen/database/sqlite.py

@@ -210,6 +210,7 @@ def get_transactions(
     min_amount=None,
     max_amount=None,
     search=None,
+    hide_missing_ids=True,
 ):
     """Get transactions from SQLite database with optional filtering"""
     from pathlib import Path
@@ -249,6 +250,11 @@ def get_transactions(
         query += " AND description LIKE ?"
         params.append(f"%{search}%")
 
+    if hide_missing_ids:
+        query += (
+            " AND internalTransactionId IS NOT NULL AND internalTransactionId != ''"
+        )
+
     # Add ordering and pagination
     query += " ORDER BY transactionDate DESC"
 
@@ -397,6 +403,11 @@ def get_transaction_count(account_id=None, **filters):
         query += " AND description LIKE ?"
         params.append(f"%{filters['search']}%")
 
+    if filters.get("hide_missing_ids", True):
+        query += (
+            " AND internalTransactionId IS NOT NULL AND internalTransactionId != ''"
+        )
+
     try:
         cursor.execute(query, params)
         count = cursor.fetchone()[0]