feat: link commits, branches and pull requests to tickets

A project can turn on a webhook for GitHub, Gitea or GitLab. Pushes and
pull or merge requests that name a ticket key show on that ticket under
Desarrollo, with the state of each pull request; the secret is shown and
rotated from the project settings.

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

libs/web/tracker/infrastructure/src/lib/graphql/fragments.graphql

@@ -108,6 +108,16 @@ fragment IssueFields on Issue {
     text
     done
   }
+  devLinks {
+    kind
+    url
+    title
+    ref
+    state
+    provider
+    author
+    at
+  }
   attachments {
     id
     fileName