receipt rework and discovery rework

package/linux/veilid-server.conf

@@ -6,15 +6,16 @@
 # -----------------------------------------------------------
 
 ---
-daemon:
-  enabled: true
-  pid_file: '/run/veilid-server.pid'
-  working_directory: '/'
-  user: veilid
-  group: veilid
 logging:
   system:
     enabled: true
     level: info
   terminal:
     enabled: false
+core:
+  protected_store:
+    insecure_fallback_directory: '/var/db/veilid-server/protected_store'
+  table_store:
+    directory: '/var/db/veilid-server/table_store'
+  block_store:
+    directory: '/var/db/veilid-server/block_store'

package/systemd/veilid-server.service

@@ -6,15 +6,15 @@ Requires=network-online.target
 After=network-online.target
 
 [Service]
-Type=forking
-PIDFile=/run/veilid-server.pid
-ExecStartPre=/usr/bin/rm -f /run/veilid-server.pid
+Type=simple
 ExecStart=/usr/bin/veilid-server
 ExecReload=/bin/kill -s HUP $MAINPID
 KillSignal=SIGQUIT
 TimeoutStopSec=5
-KillMode=mixed
 PrivateTmp=true
+WorkingDirectory=/
+User=veilid
+Group=veilid
 
 [Install]
 WantedBy=multi-user.target