feat: rootless podman, session hardening, boot stability, sidebar fix

Rootless podman migration (TASK-11):
- Remove sudo from all podman calls in PodmanClient + 8 backend files
- Remove sudo from all podman/docker calls in deploy script
- Restore full systemd security hardening: NoNewPrivileges,
  RestrictAddressFamilies, MemoryDenyWriteExecute, RestrictRealtime,
  RestrictNamespaces, RestrictSUIDSGID, SystemCallFilter, ProtectSystem=strict
- Enable loginctl linger for rootless container persistence
- Remove Ollama from auto-deploy (marketplace-only)

Session & auth hardening:
- Increase MAX_CONCURRENT_SESSIONS 20→50 (prevents eviction storms)
- Debounced 401 redirect in rpc-client.ts (prevents redirect storms)

Boot stability:
- optimize-debian.sh: adds chrony, swap, removes policy-rc.d
- deploy script: pre-restart chrony + swap setup
- ISO build: chrony package, swap file creation
- BootScreen: no longer clears localStorage (prevents splash replay)
- RootRedirect: sole owner of localStorage clearing on server ready

UI fixes:
- Sidebar opacity default changed from 0→visible (fixes missing sidebar
  after page-persistence login without entrance animation)
- Console.log/error wrapped in import.meta.env.DEV guards
- Remove unused route import from RootRedirect

Beta tracking:
- CLAUDE.md: beta freeze protocol added
- MASTER_PLAN.md: TASK-11, TASK-17, phase structure
- BETA-PROGRESS.md: initial tracking doc
- Tagged v1.2.0-alpha.1 as pre-rootless baseline

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

image-recipe/archipelago-scripts/install-to-disk.sh

@@ -168,7 +168,8 @@ chroot /mnt/archipelago apt-get install -y \
     wget \
     htop \
     vim-tiny \
-    ca-certificates
+    ca-certificates \
+    chrony
 
 echo "📦 Installing container tools..."
 chroot /mnt/archipelago apt-get install -y podman || echo "⚠️  Podman not available in base repos, will use containers.io later"
@@ -194,6 +195,22 @@ echo "archipelago:archipelago" | chroot /mnt/archipelago chpasswd
 echo "⚙️  Enabling services..."
 chroot /mnt/archipelago systemctl enable NetworkManager || true
 chroot /mnt/archipelago systemctl enable ssh || chroot /mnt/archipelago systemctl enable sshd || true
+chroot /mnt/archipelago systemctl enable chrony || true
+
+# Remove policy-rc.d so services can start on first boot
+rm -f /mnt/archipelago/usr/sbin/policy-rc.d
+
+echo "💾 Creating swap file..."
+TOTAL_MEM_KB=$(chroot /mnt/archipelago grep MemTotal /proc/meminfo 2>/dev/null | awk '{print $2}')
+SWAP_GB=${TOTAL_MEM_KB:+$((TOTAL_MEM_KB / 1024 / 1024))}
+SWAP_GB=${SWAP_GB:-4}
+[ "$SWAP_GB" -gt 8 ] && SWAP_GB=8
+[ "$SWAP_GB" -lt 2 ] && SWAP_GB=2
+fallocate -l ${SWAP_GB}G /mnt/archipelago/swapfile 2>/dev/null || dd if=/dev/zero of=/mnt/archipelago/swapfile bs=1G count=$SWAP_GB status=progress
+chmod 600 /mnt/archipelago/swapfile
+chroot /mnt/archipelago mkswap /swapfile
+echo '/swapfile none swap sw 0 0' >> /mnt/archipelago/etc/fstab
+echo "✅ Created ${SWAP_GB}G swap"
 
 echo "📁 Creating Archipelago directories..."
 chroot /mnt/archipelago mkdir -p /var/lib/archipelago/{data,config,containers}