feat: steadier live updates and notices for public proposals

- The web pings the live connection, reconnects when it goes quiet and
  reloads what each screen shows after reconnecting.
- Dropping a card on a column it cannot go to puts it back.
- Owners and admins get a notice when a proposal arrives.
- The proposal limit lives in Redis, so it holds across instances.
- REST tells whether I voted; pasted images leave the attachment list.
- Deleting a project removes its Git integration; no lint warnings left.
- Reactions and the blocked badge are components of their own.
- Docs: what is done and what is left (chapter 10), Word and PDF.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

libs/web/tracker/application/src/lib/facades/facades.spec.ts

@@ -41,6 +41,7 @@ const analytics = { from: 'a', to: 'b', qa: { failureRate: 0.25 } };
 
 /** Every command succeeds, every query answers once, nothing arrives in real time. */
 function gateways() {
+  const reconnected = new Subject<void>();
   return {
     projects: {
       project: vi.fn(() => of(project)),
@@ -92,7 +93,9 @@ function gateways() {
       releaseChanges: () => NEVER,
       sprintChanges: () => NEVER,
       projectChanges: vi.fn((): unknown => NEVER),
+      reconnects: () => reconnected,
     },
+    reconnected,
   };
 }
 
@@ -161,6 +164,19 @@ describe('BoardFacade', () => {
     expect(board.filter()).toEqual({ projectId: 'p2' });
   });
 
+  it('reloads what it shows when the live connection comes back', () => {
+    const { board, fakes } = setup();
+    board.show({ projectId: 'p1', assigneeId: 'u2' });
+    fakes.issues.board.mockClear();
+
+    fakes.reconnected.next();
+
+    expect(fakes.issues.board).toHaveBeenCalledWith({
+      projectId: 'p1',
+      assigneeId: 'u2',
+    });
+  });
+
   it('saves the current filter as a view and knows when it is showing one', () => {
     const { board, fakes } = setup();
     const view = {
@@ -480,7 +496,7 @@ describe('InboxFacade', () => {
         { provide: NotificationsGateway, useValue: gateway },
         {
           provide: TrackerRealtimeGateway,
-          useValue: { notifications: () => arrivals },
+          useValue: { notifications: () => arrivals, reconnects: () => NEVER },
         },
         {
           provide: Notifications,

libs/web/tracker/application/src/lib/stores/backlog.store.ts

@@ -79,6 +79,7 @@ export const BacklogStore = signalStore(
           switchMap(({ payload }) =>
             merge(
               realtime.issueChanges(payload.projectId).pipe(debounceTime(400)),
+              realtime.reconnects(),
               events.on(backlogApiEvents.moveFailed, backlogApiEvents.bulkDone),
             ).pipe(
               startWith(null),

libs/web/tracker/application/src/lib/stores/board.store.ts

@@ -20,6 +20,7 @@ import {
   distinctUntilChanged,
   EMPTY,
   exhaustMap,
+  filter,
   map,
   merge,
   mergeMap,
@@ -112,6 +113,12 @@ export const BoardStore = signalStore(
         load$: events
           .on(boardPageEvents.opened, boardPageEvents.filterChanged)
           .pipe(switchMap(({ payload }) => load(payload))),
+        // Back after a cut: what moved meanwhile was not received.
+        resync$: realtime.reconnects().pipe(
+          map(() => store.filter()),
+          filter((current): current is BoardFilter => !!current),
+          switchMap((current) => load(current)),
+        ),
         live$: events.on(boardPageEvents.opened).pipe(
           map(({ payload }) => payload.projectId),
           distinctUntilChanged(),

libs/web/tracker/application/src/lib/stores/epics.store.ts

@@ -49,6 +49,7 @@ export const EpicsStore = signalStore(
         switchMap(({ payload }) =>
           merge(
             realtime.issueChanges(payload.projectId),
+            realtime.reconnects(),
             // One's own vote, without waiting for the live update.
             events.on(epicsApiEvents.voted),
           ).pipe(

libs/web/tracker/application/src/lib/stores/inbox.store.ts

@@ -85,7 +85,11 @@ export const InboxStore = signalStore(
     ) => {
       const closed$ = events.on(inboxPageEvents.closed);
       return {
-        load$: events.on(inboxPageEvents.opened).pipe(
+        // Also when the live connection comes back: what arrived meanwhile was missed.
+        load$: merge(
+          events.on(inboxPageEvents.opened),
+          realtime.reconnects(),
+        ).pipe(
           switchMap(() =>
             gateway.mine(false, LIMIT).pipe(
               mapResponse({

libs/web/tracker/application/src/lib/stores/issue.store.ts

@@ -243,39 +243,41 @@ export const IssueStore = signalStore(
          * API projects its read model a moment after answering, so the
          * ticket, its comments and its subtasks are asked for twice.
          */
-        catchUp$: events
-          .on(
+        catchUp$: merge(
+          events.on(
             issueApiEvents.commandSucceeded,
             issueApiEvents.checklistSaved,
             issuePageEvents.imagePasted,
-          )
-          .pipe(
-            map(() => store.issue()),
-            filter((issue): issue is Issue => !!issue),
-            switchMap((issue) =>
-              merge(
-                ...[300, 1500].map((ms) =>
-                  timer(ms).pipe(
-                    switchMap(() =>
-                      merge(
-                        fetchIssue(issue.id),
-                        comments
-                          .list(issue.id)
-                          .pipe(
-                            map((list) => issueApiEvents.commentsLoaded(list)),
-                          ),
-                        [
-                          issueRealtimeEvents.childrenTouched({
-                            issueId: issue.id,
-                          }),
-                        ],
-                      ),
+          ),
+          // Back after a cut: comments or changes may have been missed.
+          realtime.reconnects(),
+        ).pipe(
+          map(() => store.issue()),
+          filter((issue): issue is Issue => !!issue),
+          switchMap((issue) =>
+            merge(
+              ...[300, 1500].map((ms) =>
+                timer(ms).pipe(
+                  switchMap(() =>
+                    merge(
+                      fetchIssue(issue.id),
+                      comments
+                        .list(issue.id)
+                        .pipe(
+                          map((list) => issueApiEvents.commentsLoaded(list)),
+                        ),
+                      [
+                        issueRealtimeEvents.childrenTouched({
+                          issueId: issue.id,
+                        }),
+                      ],
                     ),
                   ),
                 ),
               ),
             ),
           ),
+        ),
         liveComments$: events.on(issuePageEvents.opened).pipe(
           switchMap(() => loaded$.pipe(map(({ payload }) => payload.id))),
           filter((id, index) => index === 0 || id !== store.issue()?.id),

libs/web/tracker/application/src/lib/stores/list.store.ts

@@ -100,6 +100,7 @@ export const ListStore = signalStore(
               ),
               merge(
                 realtime.issueChanges(payload.projectId),
+                realtime.reconnects(),
                 events.on(
                   listApiEvents.changed,
                   listApiEvents.changeFailed,

libs/web/tracker/application/src/lib/stores/project.store.ts

@@ -242,6 +242,20 @@ export const ProjectStore = signalStore(
             ),
           ),
         ),
+        // Back after a cut: refetch it, and its details follow `loaded`.
+        resync$: realtime.reconnects().pipe(
+          map(() => store.project()?.key),
+          filter((key): key is string => !!key),
+          switchMap((key) =>
+            projects.project(key).pipe(
+              mapResponse({
+                next: (project) => projectApiEvents.loaded(project),
+                error: (error) =>
+                  projectApiEvents.loadFailed(describeError(error)),
+              }),
+            ),
+          ),
+        ),
         details$: loaded$.pipe(
           switchMap(({ payload }) =>
             merge(

libs/web/tracker/application/src/lib/stores/projects.store.ts

@@ -14,7 +14,7 @@ import {
   ProjectsGateway,
   TrackerRealtimeGateway,
 } from '@task-stream/web/tracker/domain';
-import { exhaustMap, map, switchMap, tap } from 'rxjs';
+import { exhaustMap, map, merge, switchMap, tap } from 'rxjs';
 import {
   projectsApiEvents,
   projectsPageEvents,
@@ -74,7 +74,11 @@ export const ProjectsStore = signalStore(
       router = inject(Router),
       auth = inject(AuthFacade),
     ) => ({
-      load$: events.on(projectsPageEvents.opened).pipe(
+      load$: merge(
+        events.on(projectsPageEvents.opened),
+        // Back after a cut: being added or removed meanwhile was missed.
+        realtime.reconnects(),
+      ).pipe(
         switchMap(() =>
           projects.myProjects().pipe(
             mapResponse({