Dev notes updated

DEV-NOTES.md

@@ -1,12 +1,13 @@
-# Project dependencies
+## Project dependencies
+- `grammyX` Telegram JS/TS/Deno library
+- `kysel`   Helps with migrations and query building
+- `node:pg` Library used by kysely by default
 
-# Structure
+## Structure
 - `bot` -- the bot code itself
 - `cfg` -- everything configuration related
+- `core` -- core or domain. Contains entity and logics, responsible for the access management, also containes core entities
 - `external` -- eveything responsible for communication with an external network interfaces/devices
+- `migrations` -- DB migrations
 - `repo` -- everything storage related (including external databases, caches, CDNs)
 - `utils` -- everything else 
-
-# Configuring the project
-
-We store code in a .ts file cuz it's working just fine