mac-mini wired to LAN: update IPs and revert WiFi moonlight/sunshine configs

- mac-mini: lan_ip 192.168.8.174 → 192.168.178.182 (wired en0)
- ludo-mini: add lan_ip (192.168.178.181) and ssh user (dtoro)
- Investigation doc: mark Ethernet wiring resolved, add wired-era settings
- Moonlight: bitrate 60→80 Mbps, framepacing off
- Sunshine: bitrate 40→80 Mbps, fec 2→5%, packetsize 1024→1316

inventory.yaml

@@ -325,7 +325,7 @@ hosts:
     kind: workstation
     os: macos
     role: dev
-    lan_ip: 192.168.8.174
+    lan_ip: 192.168.178.182
     mesh:
       netbird:
         fqdn: mac-mini-234-17.netbird.selfhosted
@@ -338,12 +338,12 @@ hosts:
     kind: workstation
     os: linux
     role: dev
+    lan_ip: 192.168.178.181
     mesh:
       netbird:
         fqdn: ludo-mini.netbird.selfhosted
-    # ssh.user defaults to root; uncomment + set to the actual login user
-    # before relying on `homelab ssh ludo-mini` or netbird-ssh INTO this host.
-    # ssh: { user: ludo }
+    ssh:
+      user: dtoro
   netbird-vps:
     kind: external
     os: linux