Generate and maintain ICS calendar with import compatibility fixes

.github/workflows/deploy.yml

@@ -60,6 +60,9 @@ jobs:
       - name: Setup Pages
         uses: actions/configure-pages@v4
 
+      - name: Generate calendar.ics
+        run: ruby tools/generate_calendar_ics.rb
+
       - name: Build with Jekyll
         run: bundle exec jekyll build
         env:
@@ -70,6 +73,7 @@ jobs:
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
           git add _includes/VERSION.txt
+          git add calendar.ics
 
           # Only commit and push if there are changes
           if git diff --staged --quiet; then

README.md

@@ -75,6 +75,15 @@ This versioning system enables:
 - Associating bug reports with specific deployments
 - Measuring quality metrics across versions (see [ROADMAP.md](ROADMAP.md))
 
+## Calendar (.ics) Export
+
+Generate a downloadable calendar file from `_data/current.yml`:
+
+```shell
+ruby tools/generate_calendar_ics.rb
+```
+
+This writes `calendar.ics` at the repository root.
 
 ## License