feat: tickets I follow, and more news for followers

"Que sigo" on the home page lists the open tickets I follow, whoever
works on them; `watching` filters my issues (REST, GraphQL, MCP) and a
project's search (none without a session).

Followers now also hear when a ticket's priority or due date changes,
and when it enters or leaves a sprint. Smaller edits (title, labels…)
still do not notify.

Docs (with the REPLIED row the replies change missed), Word and PDF
updated.

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

libs/web/tracker/presenters/src/lib/pages/my-work.ts

@@ -33,7 +33,8 @@ const VISIBLE = 12;
 
 /**
  * "Mi trabajo" on the home page, across every project I belong to: my open
- * tickets (QA failures first), tickets waiting for QA and upcoming releases.
+ * tickets (QA failures first), tickets waiting for QA, the open ones I follow
+ * and upcoming releases.
  * Reloads when the tab becomes visible again.
  */
 @Component({
@@ -147,6 +148,39 @@ const VISIBLE = 12;
             </ul>
           </section>
 
+          <section
+            class="ts-panel ts-work__panel"
+            aria-labelledby="following-title"
+          >
+            <header class="ts-work__head">
+              <h2 id="following-title">Que sigo</h2>
+              <span class="ts-muted ts-mono">{{ home.followingTotal() }}</span>
+            </header>
+            <ul class="ts-work__list">
+              @for (issue of home.following().slice(0, 6); track issue.id) {
+                <li>
+                  <a
+                    class="ts-work__row ts-work__row--qa"
+                    [routerLink]="['/p', keyOf(issue.key), 'issues', issue.key]"
+                    [style.--type]="statusTone(issue)"
+                  >
+                    <span class="ts-key">{{ issue.key }}</span>
+                    <span class="ts-work__title">{{ issue.title }}</span>
+                    @if (issue.assignee; as assignee) {
+                      <span class="ts-work__who" [attr.title]="assignee.name">{{
+                        initialsOf(assignee.name)
+                      }}</span>
+                    }
+                  </a>
+                </li>
+              } @empty {
+                <li class="ts-work__empty">
+                  No sigues ningún ticket abierto. En la ficha de uno, «Seguir».
+                </li>
+              }
+            </ul>
+          </section>
+
           <section
             class="ts-panel ts-work__panel"
             aria-labelledby="releases-title"