feat(sdk): add publish manifest generation and source generators

- Add publish.manifest.json generation from VSIX manifest values
  - publisher from Identity/@publisher
  - categories from Tags element
  - repo from MoreInfo element
- Add source generators for VsixInfo and VSCT constants
- Add README template to dotnet new template
- Add Bluesky and LinkedIn notifications to release workflow
- Add contributors workflow
- Update README with publish manifest documentation

Author: CalvinAllen

.github/workflows/contributors.yml

@@ -0,0 +1,40 @@
+name: Update Contributors
+
+on:
+  schedule:
+    - cron: '0 0 * * *'  # Run daily at midnight UTC
+  workflow_dispatch:  # Allow manual trigger
+
+jobs:
+  contributors:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.CONTRIBUTORS_TOKEN }}
+
+      - name: Update contributors
+        env:
+          GH_TOKEN: ${{ secrets.CONTRIBUTORS_TOKEN }}
+        run: |
+          # Fetch contributors from GitHub API (exclude bots) - markdown format
+          contributors=$(gh api repos/CodingWithCalvin/VsixSdk/contributors --paginate --jq '.[] | select(.type != "Bot") | select(.login | test("\\[bot\\]$") | not) | "[![\(.login)](\(.avatar_url)&s=64)](\(.html_url))"' | tr '\n' ' ')
+
+          # Build the contributors section
+          contrib_section="<!-- readme: contributors -start -->
+$contributors
+<!-- readme: contributors -end -->"
+
+          # Update README between the markers
+          awk -v contrib="$contrib_section" '
+            /<!-- readme: contributors -start -->/{found=1; print contrib; next}
+            /<!-- readme: contributors -end -->/{found=0; next}
+            !found{print}
+          ' README.md > README.tmp && mv README.tmp README.md
+
+      - name: Commit and push
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add README.md
+          git diff --staged --quiet || (git commit -m "docs: update contributors [skip ci]" && git push)

.github/workflows/release.yml

@@ -12,6 +12,8 @@ jobs:
   release:
     needs: changelog
     runs-on: windows-latest
+    outputs:
+      version: ${{ steps.version.outputs.VERSION }}
 
     permissions:
       contents: write
@@ -64,3 +66,43 @@ jobs:
           files: |
             artifacts/packages/CodingWithCalvin.VsixSdk.${{ steps.version.outputs.VERSION }}.nupkg
             artifacts/packages/CodingWithCalvin.VsixSdk.Templates.${{ steps.version.outputs.VERSION }}.nupkg
+
+  notify-bluesky:
+    needs: release
+    uses: CodingWithCalvin/.github/.github/workflows/bluesky-post.yml@main
+    with:
+      post_text: |
+        🚀 CodingWithCalvin.VsixSdk v${{ needs.release.outputs.version }} has been released!
+
+        Build modern SDK-style Visual Studio extensions with ease.
+
+        [📋 Release Notes](https://github.com/${{ github.repository }}/releases/tag/v${{ needs.release.outputs.version }})
+        [📦 NuGet](https://www.nuget.org/packages/CodingWithCalvin.VsixSdk)
+
+        #dotnet #csharp #visualstudio #nuget
+      embed_url: https://www.nuget.org/packages/CodingWithCalvin.VsixSdk
+      embed_title: CodingWithCalvin.VsixSdk
+      embed_description: An MSBuild SDK for modern SDK-style Visual Studio extension development
+    secrets:
+      BLUESKY_USERNAME: ${{ secrets.BLUESKY_USERNAME }}
+      BLUESKY_APP_PASSWORD: ${{ secrets.BLUESKY_APP_PASSWORD }}
+
+  notify-linkedin:
+    needs: release
+    uses: CodingWithCalvin/.github/.github/workflows/linkedin-post.yml@main
+    with:
+      post_text: |
+        🚀 CodingWithCalvin.VsixSdk v${{ needs.release.outputs.version }} has been released!
+
+        Build modern SDK-style Visual Studio extensions with ease.
+
+        📋 Release Notes: https://github.com/${{ github.repository }}/releases/tag/v${{ needs.release.outputs.version }}
+        📦 NuGet: https://www.nuget.org/packages/CodingWithCalvin.VsixSdk
+
+        #dotnet #csharp #visualstudio #nuget
+      article_url: https://www.nuget.org/packages/CodingWithCalvin.VsixSdk
+      article_title: CodingWithCalvin.VsixSdk
+      article_description: An MSBuild SDK for modern SDK-style Visual Studio extension development
+    secrets:
+      LINKEDIN_ACCESS_TOKEN: ${{ secrets.LINKEDIN_ACCESS_TOKEN }}
+      LINKEDIN_CLIENT_ID: ${{ secrets.LINKEDIN_CLIENT_ID }}

.gitignore

@@ -46,3 +46,8 @@ Desktop.ini
 CLAUDE.local.md
 
 .claude/
+
+# Generated files from SDK
+Generated/
+VsixInfo.g.cs
+*Vsct.g.cs