docs: replace kindred.internal with example.internal in all docs and config

Replace all references to internal hostnames (silo.kindred.internal,
psql.kindred.internal, minio.kindred.internal, ipa.kindred.internal,
keycloak.kindred.internal) with example.internal equivalents.

Replace gitea.kindred.internal and git.kindred.internal with the public
git.kindred-systems.com instance. Also fix stale silo-0062 repo name
in setup-host.sh and DEPLOYMENT.md.

scripts/deploy.sh

@@ -1,18 +1,18 @@
 #!/bin/bash
-# Deploy Silo to silo.kindred.internal
+# Deploy Silo to silo.example.internal
 #
 # Usage: ./scripts/deploy.sh [host]
-#   host defaults to silo.kindred.internal
+#   host defaults to silo.example.internal
 #
 # Prerequisites:
 #   - SSH access to the target host
 #   - /etc/silo/silod.env must exist on target with credentials filled in
-#   - PostgreSQL reachable from target at psql.kindred.internal
-#   - MinIO reachable from target at minio.kindred.internal
+#   - PostgreSQL reachable from target at psql.example.internal
+#   - MinIO reachable from target at minio.example.internal
 
 set -euo pipefail
 
-TARGET="${1:-silo.kindred.internal}"
+TARGET="${1:-silo.example.internal}"
 DEPLOY_DIR="/opt/silo"
 CONFIG_DIR="/etc/silo"
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
@@ -123,14 +123,14 @@ if command -v psql &>/dev/null && [ -n "${SILO_DB_PASSWORD:-}" ]; then
     for f in "$DEPLOY_DIR/migrations/"*.sql; do
         echo "    $(basename "$f")"
         PGPASSWORD="$SILO_DB_PASSWORD" psql \
-            -h psql.kindred.internal -p 5432 \
+            -h psql.example.internal -p 5432 \
             -U silo -d silo \
             -f "$f" -q 2>&1 | grep -v "already exists" || true
     done
     echo "  Migrations complete."
 else
     echo "  WARNING: psql not available or SILO_DB_PASSWORD not set, skipping migrations."
-    echo "  Run migrations manually: PGPASSWORD=... psql -h psql.kindred.internal -U silo -d silo -f /opt/silo/migrations/NNN_name.sql"
+    echo "  Run migrations manually: PGPASSWORD=... psql -h psql.example.internal -U silo -d silo -f /opt/silo/migrations/NNN_name.sql"
 fi
 
 # Start service