Add treasurer update to agenda_2026-03-24.md

Author: falxie

general/agendas/2026/agenda_2026-03-24.md

@@ -33,10 +33,10 @@
 
 # Treasurer Update
 - Last month:
-  - Spent: $TBD
-  - Received: $TBD
-    - +/-$TBD
-  - Money in the bank: $TBD
+  - Spent: $3,203.74
+  - Received: $4,650.00
+    - +1,446.26
+  - Money in the bank: $27,759.58
 
 # Motions and Voting
 - Nohi: [Storage unit proposal](https://drive.google.com/file/d/1h3Cn00lNPziD1sDuY7jBRJ36JlxI_A5r/view?usp=drive_link)