fix: Handle saga watcher errors gracefully

client/src/sagas/core/index.js

@@ -3,17 +3,18 @@
  * Licensed under the Fair Use License: https://github.com/plankanban/planka/blob/master/LICENSE.md
  */
 
-import { all, apply, fork, select, take } from 'redux-saga/effects';
+import { apply, fork, select, take } from 'redux-saga/effects';
 
 import watchers from './watchers';
 import services from './services';
+import runWatchers from '../run-watchers';
 import selectors from '../../selectors';
 import { socket } from '../../api';
 import ActionTypes from '../../constants/ActionTypes';
 import Paths from '../../constants/Paths';
 
 export default function* coreSaga() {
-  yield all(watchers.map((watcher) => fork(watcher)));
+  yield runWatchers(watchers);
 
   yield apply(socket, socket.connect);
   yield fork(services.initializeCore);

client/src/sagas/login/index.js

@@ -3,14 +3,15 @@
  * Licensed under the Fair Use License: https://github.com/plankanban/planka/blob/master/LICENSE.md
  */
 
-import { all, call, cancel, fork, take } from 'redux-saga/effects';
+import { call, cancel, fork, take } from 'redux-saga/effects';
 
 import watchers from './watchers';
 import services from './services';
+import runWatchers from '../run-watchers';
 import ActionTypes from '../../constants/ActionTypes';
 
 export default function* loginSaga() {
-  const watcherTasks = yield all(watchers.map((watcher) => fork(watcher)));
+  const watcherTasks = yield runWatchers(watchers);
 
   yield fork(services.initializeLogin);
 

client/src/sagas/run-watchers.js

@@ -0,0 +1,21 @@
+/*!
+ * Copyright (c) 2024 PLANKA Software GmbH
+ * Licensed under the Fair Use License: https://github.com/plankanban/planka/blob/master/LICENSE.md
+ */
+
+import { all, call, spawn } from 'redux-saga/effects';
+
+function* safeWatch(watcher) {
+  while (true) {
+    try {
+      yield call(watcher);
+      break;
+    } catch (error) {
+      console.error(error); // eslint-disable-line no-console
+    }
+  }
+}
+
+export default function* runWatchers(watchers) {
+  return yield all(watchers.map((watcher) => spawn(safeWatch, watcher)));
+}