Document reboot recovery and Taler in-container app autostart.

Record post-reboot 502 causes and the ensure-taler-apps automation path.

2026/2026-07-16--container-autostart.md

@@ -34,4 +34,17 @@
 systemctl --user is-enabled podman-restart.service
 podman ps -a --filter should-start-on-boot=true --format '{{.Names}} {{.Status}}'
 systemctl --user --failed
+systemctl --user is-active taler-merchant-apps.service taler-bank-apps.service
+~/.local/bin/ensure-taler-apps.sh status
 ```
+
+## Taler apps inside containers (added same day, later)
+
+Merchant/bank containers only run **`sleep infinity`**. Autostart of the
+*apps* is **not** podman-restart alone — see:
+
+- `scripts/taler-shared/ensure-taler-apps.sh`
+- user units **`taler-merchant-apps.service`**, **`taler-bank-apps.service`**
+- drop-ins under `configs/systemd/user/container-taler-*.service.d/apps.conf`
+- install: `scripts/taler-shared/install-ensure-taler-apps.sh`
+- narrative: `2026-07-16--reboot-recovery.md`