update docs and add details on proudnet version

docs/DATABASE.md

@@ -114,7 +114,7 @@ Further details:
   `Error_ADO DB Connect.Log` (`DBC:0x1400a80c0`).
 - Startup (`DBC:0x140042cf0`) opens a type-2 (AUTH) and a type-3 (GAME)
   connection for the server itself. It also allocates write-queue arrays of
-  125 slots.
+  1000 slots (a 0x1f48-byte block: 125 loop iterations × 8 pointers).
 
 **Which connection each procedure uses?** The connection object passed to each
 `DBReq` method hasn't been traced yet. The **I** answer is: the database that