[feat] Watchdog and notifications (#2895)

lnbits/core/crud/wallets.py

@@ -135,6 +135,12 @@ async def get_wallets(
     )
 
 
+async def get_wallets_count():
+    result = await db.execute("SELECT COUNT(*) as count FROM wallets")
+    row = result.mappings().first()
+    return row.get("count", 0)
+
+
 async def get_wallet_for_key(
     key: str,
     conn: Optional[Connection] = None,
@@ -153,6 +159,6 @@ async def get_wallet_for_key(
 
 
 async def get_total_balance(conn: Optional[Connection] = None):
-    result = await (conn or db).execute("SELECT SUM(balance) FROM balances")
+    result = await (conn or db).execute("SELECT SUM(balance) as balance FROM balances")
     row = result.mappings().first()
     return row.get("balance", 0)