added install script for agent

changed backend to agent

.gitignore

@@ -8,6 +8,9 @@ node_modules/
 backend/.env
 backend/.env.*
 !backend/.env.example
+agent/.env
+agent/.env.*
+!agent/.env.example
 management/.env
 management/.env.*
 !management/.env.example
@@ -15,6 +18,14 @@ management/.env.*
 # Runtime state
 backend/schedules.json
 backend/schedules.json.tmp
+backend/*.sqlite
+backend/*.sqlite-shm
+backend/*.sqlite-wal
+agent/schedules.json
+agent/schedules.json.tmp
+agent/*.sqlite
+agent/*.sqlite-shm
+agent/*.sqlite-wal
 management/*.sqlite
 management/*.sqlite-shm
 management/*.sqlite-wal