chore: Switch default domain from .local to .internal, bump to v0.9.0

- Update default agent domain: clawdie.local → clawdie.internal
- Avoids mDNS conflicts and uses RFC-compliant .internal TLD
- Update baremetal wizard prompt to show .internal example
- Bump CLAWDIE_VERSION from 0.8.2 to 0.9.0 (cloud/baremetal + SSH support)

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

build.cfg

@@ -22,7 +22,7 @@ IMAGE_SIZE="50G"
 IMAGE_NAME="clawdie-iso-$(date +%d.%b.%Y | tr 'A-Z' 'a-z').img"
 
 # Clawdie-AI release to bundle (fetched from Codeberg)
-CLAWDIE_VERSION="0.8.2"
+CLAWDIE_VERSION="0.9.0"
 CLAWDIE_TARBALL_URL="https://codeberg.org/Clawdie/Clawdie-AI/archive/v${CLAWDIE_VERSION}.tar.gz"
 
 # Default installer choices (can be overridden by clawdie.conf on USB)

firstboot/firstboot.sh

@@ -42,7 +42,7 @@ else
     _dialog --msgbox "\n⚠ EXPERIMENTAL BUILD\n\nThis is pre-release software.\nNot recommended for production use.\nData loss or service interruption possible.\n\nBy continuing, you assume all risks." 12 60
 
     ASSISTANT_NAME=$(_dialog --inputbox "Assistant name:" 8 50 "Clawdie")
-    AGENT_DOMAIN=$(_dialog --inputbox "Agent domain (e.g. clawdie.local):" 8 50 "clawdie.local")
+    AGENT_DOMAIN=$(_dialog --inputbox "Agent domain (e.g. clawdie.internal):" 8 50 "clawdie.internal")
     TZ=$(_dialog --inputbox "Timezone (e.g. Europe/Ljubljana):" 8 50 "UTC")
     SSH_PUBLIC_KEY=$(_dialog --inputbox "SSH public key (optional but recommended):\n(paste ssh-ed25519 or ssh-rsa key):" 12 70 "")
 fi