overview: normalize float-residue spend (e.g. -5.55e-17 after cycle reset) to 0 so the panel never renders -0.00

app/main.py

@@ -2471,7 +2471,13 @@ async def admin_overview(request: Request):
     for email, active, balance, user_id in rows:
         team = teams.get(f"member:{email}", {})
         spend = float(team.get("spend") or 0.0)
-        member_all_time = all_time_spend.get(f"member:{email}", 0.0)
+        member_all_time = float(all_time_spend.get(f"member:{email}", 0.0))
+        # Normalize floating-point residue (e.g. -5.55e-17 after a cycle reset)
+        # so the panel/dashboards never render "-0.00".
+        if abs(spend) < 1e-9:
+            spend = 0.0
+        if abs(member_all_time) < 1e-9:
+            member_all_time = 0.0
         credits = get_credit_balance(email)
         eff = compute_max_budget(
             float(balance) if balance is not None else MEMBER_BUDGET,
@@ -2708,7 +2714,7 @@ async def broker_get_matrix_mxid(request: Request):
     return {"matrix_mxid": get_member_matrix_mxid(email), "local_mxid": local_mxid_for_email(email)}
 
 
-async def local_mxid_for_email(email: str) -> str:
+def local_mxid_for_email(email: str) -> str:
     """Resolve a member's local Matrix ID (@username:inference.coop), or '' if unknown."""
     import urllib.request
     try: