feat: add do-not-disturb label to skip merge notifications

Add support for a `do-not-disturb` label on resource PRs. When this
label is present at merge time, the badge notification workflow will
skip sending a congratulatory issue to the resource author's repository.

This provides a manual toggle for maintainers to suppress notifications
when needed.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: hesreallyhim

.github/workflows/notify-on-merge.yml

@@ -10,9 +10,11 @@ jobs:
     # Only run when:
     # 1. PR was merged (not just closed)
     # 2. PR was created by github-actions bot (automated resource PR)
+    # 3. PR does NOT have the 'do-not-disturb' label (allows skipping notifications)
     if: |
       github.event.pull_request.merged == true &&
-      github.event.pull_request.user.login == 'github-actions[bot]'
+      github.event.pull_request.user.login == 'github-actions[bot]' &&
+      !contains(github.event.pull_request.labels.*.name, 'do-not-disturb')
     
     runs-on: ubuntu-latest
 

docs/HOW_IT_WORKS.md

@@ -21,6 +21,7 @@ The submission system uses several labels to track issue state:
 
 - **`broken-links`** - Applied by scheduled link validation when resources become unavailable
 - **`automated`** - Applied alongside `broken-links` to indicate automated detection
+- **`do-not-disturb`** - Apply to a resource PR before merging to skip the badge notification to the resource author's repository
 
 #### Label State Transitions