Add Ollama model auto-updater with systemd timer

ollama pull compares digests server-side so no download happens if
a model is already current. Timer runs monthly offset 2h from kiwix.
install.sh updated to handle all units generically.

https://claude.ai/code/session_012gDnantBmFTWZGCiKyjazx

systemd/install.sh

@@ -1,19 +1,33 @@
 #!/bin/bash
-# Install kiwix-update systemd user units and enable the timer
+# Install all local-ai systemd user units and enable timers
 set -e
 
 UNIT_DIR="$HOME/.config/systemd/user"
 SRC="$(cd "$(dirname "$0")" && pwd)"
 
 mkdir -p "$UNIT_DIR"
-ln -sf "$SRC/kiwix-update.service" "$UNIT_DIR/kiwix-update.service"
-ln -sf "$SRC/kiwix-update.timer"   "$UNIT_DIR/kiwix-update.timer"
+
+for unit in "$SRC"/*.service "$SRC"/*.timer; do
+    name=$(basename "$unit")
+    ln -sf "$unit" "$UNIT_DIR/$name"
+    echo "Linked $name"
+done
 
 systemctl --user daemon-reload
-systemctl --user enable --now kiwix-update.timer
+
+for timer in "$SRC"/*.timer; do
+    name=$(basename "$timer")
+    systemctl --user enable --now "$name"
+    echo "Enabled $name"
+done
 
 echo ""
-systemctl --user list-timers kiwix-update.timer
+systemctl --user list-timers kiwix-update.timer ollama-update.timer
 echo ""
-echo "Run manually anytime:  systemctl --user start kiwix-update.service"
-echo "Logs:                  journalctl --user -u kiwix-update.service"
+echo "Run manually:"
+echo "  systemctl --user start kiwix-update.service"
+echo "  systemctl --user start ollama-update.service"
+echo ""
+echo "Logs:"
+echo "  journalctl --user -u kiwix-update.service -f"
+echo "  journalctl --user -u ollama-update.service -f"