feat: introduce web dashboard with multi-bot management

- add Discord OAuth2 authentication
- allow users to register their bots via token
- implement dynamic bot start/stop system
- store bots in database (multi-tenant)
- replace single-bot env setup with scalable architecture

.dockerignore

@@ -1,5 +1,12 @@
 node_modules
 build
+dist
+.next
+apps/*/dist
+apps/*/.next
+packages/*/dist
+*.tsbuildinfo
+**/*.tsbuildinfo
 .git
 .gitignore
 .env