hotfix 1.4.1 prep

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 | Version | Date | Notes |
 |---|---|---|
+| [v1.4.1](docs/releases/v1.4.1.md) | 2026-08-29 | Fixed a printer added or edited through the UI never starting its live-telemetry connection until the next backend restart (Test connection worked, but the card stayed "Not connected" and Print failed) — mostly affected Docker installs |
 | [v1.4.0](docs/releases/v1.4.0.md) | 2026-08-26 | Export/import to migrate data between spoolbook installs (merges, doesn't replace) from the Settings page; fixed uploaded `.3mf` files being lost on every redeploy (were stored in temp, not the persistent volume) |
 | [v1.3.0](docs/releases/v1.3.0.md) | 2026-08-26 | Bed photo auto-captured at print end (replacing the plate thumbnail on print detail); outdoor weather and mid-print chamber temp/AMS humidity/layer progress charted hour-by-hour on the print detail page; print detail layout reworked (wider, tabbed charts); fixed prints getting stuck "In Progress" after a backend restart mid-print |
 | [v1.2.0](docs/releases/v1.2.0.md) | 2026-08-25 | Sidebar navigation replacing the top header; real Projects page (list/rename/delete/detail view, version chaining on re-slice); Prints made view-only (manual log/edit form removed); full shadcn-svelte restyle; AMS humidity now shows the real percentage instead of a misleading coarse index |

docs/releases/v1.4.1.md

@@ -0,0 +1,25 @@
+# spoolbook v1.4.1 — printer telemetry loop starts without a restart
+
+**Released**: 2026-08-29
+
+PATCH: bug fix only, no new capability. A printer added or reconfigured while the backend is
+already running now gets its live connection immediately, instead of only after the next restart.
+
+## Fixed
+
+- **Adding or editing a printer through the UI didn't start its live-telemetry connection.**
+  Only the once-at-startup scan spawned the per-printer MQTT loop, so a printer configured after
+  the process was running showed a working **Test connection** but stayed **"Not connected"** on
+  its card — and **Print** (and pause/resume/stop) failed with *"Printer isn't connected —
+  telemetry link is down or still reconnecting."* This mostly bit Docker installs, where the data
+  volume starts empty, the printer is added in the UI, and the container is never bounced.
+  Creating a printer now starts its loop right away; editing restarts it against the new
+  connection details (and drops it if they're cleared); deleting stops it.
+
+## Upgrading
+
+No manual migration step. Pull the new image and restart:
+
+```sh
+docker compose pull && docker compose up -d
+```

spoolbook-rs/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "spoolbook-rs"
-version = "1.4.0"
+version = "1.4.1"
 edition = "2024"
 
 [dependencies]