Add Git submodule content management system (#1)

* Add meaningfool-writing content submodule

* Configure site to use content from writing submodule

- Updated content collections to include writing collection
- Modified pages to use writing collection instead of articles
- Updated ArticlesList component for new collection type
- Restructured content repository for clean URL structure

* Add Playwright test screenshots documenting submodule functionality

- Screenshot of homepage showing articles from submodule
- Screenshot of individual article page rendering correctly
- Confirms submodule content integration is working properly

🤖 Generated with [Claude Code](https://claude.ai/code)

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

* Add automated submodule workflow and update deployment

- Add update-content.yml for automated submodule updates
- Update deploy.yml to include recursive submodules
- Enables GitHub Pages to properly build with submodule content

---------

Co-authored-by: Claude <noreply@anthropic.com>

Author: meaningfool

.github/workflows/deploy.yml

@@ -25,6 +25,8 @@ jobs:
     steps:
       - name: Checkout your repository using git
         uses: actions/checkout@v4
+        with:
+          submodules: recursive
 
       - name: Install, build, and upload your site
         uses: withastro/action@v3

.github/workflows/update-content.yml

@@ -0,0 +1,26 @@
+name: Update Content Submodule
+
+on:
+  repository_dispatch:
+    types: [content-updated]
+  workflow_dispatch:
+
+jobs:
+  update-content:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          token: ${{ secrets.GITHUB_TOKEN }}
+      
+      - name: Update submodule
+        run: |
+          git submodule update --remote src/content/writing
+          git add src/content/writing
+          if git diff --cached --quiet; then
+            echo "No content changes"
+          else
+            git commit -m "Auto-update content submodule"
+            git push
+          fi

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "src/content/writing"]
+	path = src/content/writing
+	url = https://github.com/meaningfool/meaningfool-writing.git