feat(networking): migrate host services from ZeroTier to Tailscale

- replace legacy IP addresses with Tailscale MagicDNS names
- route Prometheus scraping and exporter firewall access through Tailscale
- wait for Tailscale before starting Prometheus
- restrict service UI ports to the Tailscale interface
- update PostgreSQL and Transmission access rules
- remove Jeeves ZeroTier configuration and Docker host overrides

systems/jeeves/monitoring/default.nix

@@ -41,29 +41,29 @@ let
       {
         job_name = "node";
         static_configs = [
-          (mkTarget "jeeves" "192.168.90.40:9100")
-          (mkTarget "bob" "192.168.90.25:9100")
+          (mkTarget "jeeves" "jeeves.taile39c31.ts.net:9100")
+          (mkTarget "bob" "bob.taile39c31.ts.net:9100")
         ];
       }
       {
         job_name = "process_grouped";
         static_configs = [
-          (mkTarget "jeeves" "192.168.90.40:9256")
-          (mkTarget "bob" "192.168.90.25:9256")
+          (mkTarget "jeeves" "jeeves.taile39c31.ts.net:9256")
+          (mkTarget "bob" "bob.taile39c31.ts.net:9256")
         ];
       }
       {
         job_name = "smartctl";
         static_configs = [
-          (mkTarget "jeeves" "192.168.90.40:9633")
-          (mkTarget "bob" "192.168.90.25:9633")
+          (mkTarget "jeeves" "jeeves.taile39c31.ts.net:9633")
+          (mkTarget "bob" "bob.taile39c31.ts.net:9633")
         ];
       }
       {
         job_name = "zfs";
         static_configs = [
-          (mkTarget "jeeves" "192.168.90.40:9134")
-          (mkTarget "bob" "192.168.90.25:9134")
+          (mkTarget "jeeves" "jeeves.taile39c31.ts.net:9134")
+          (mkTarget "bob" "bob.taile39c31.ts.net:9134")
         ];
       }
     ];
@@ -79,8 +79,8 @@ let
       {
         job_name = "process_pid";
         static_configs = [
-          (mkTarget "jeeves" "192.168.90.40:9257")
-          (mkTarget "bob" "192.168.90.25:9257")
+          (mkTarget "jeeves" "jeeves.taile39c31.ts.net:9257")
+          (mkTarget "bob" "bob.taile39c31.ts.net:9257")
         ];
       }
     ];
@@ -97,7 +97,9 @@ let
       after = [
         "zfs-media-database-prometheus.mount"
         "network.target"
+        "tailscaled-autoconnect.service"
       ];
+      wants = [ "tailscaled-autoconnect.service" ];
       requires = [ "zfs-media-database-prometheus.mount" ];
       wantedBy = [ "multi-user.target" ];
       unitConfig.RequiresMountsFor = [ dataDir ];