feat: add DeepSeek and NVIDIA NIM providers

- Add deepseek and nvidia entries to gateway-provider config

- Add DEEPSEEK_API_KEY and NVIDIA_API_KEY to .env.example

- Add deepseek and nvidia to doctor's LLM provider check

- Fix remaining harness-log → log-message reference

.github/workflows/release.yml

@@ -16,16 +16,16 @@ jobs:
 
       - name: Create tarball
         run: |
-          git archive --format=tar.gz --prefix=opencortex-$(git describe --tags) HEAD -o opencortex.tar.gz
+          git archive --format=tar.gz --prefix=passepartout-$(git describe --tags) HEAD -o passepartout.tar.gz
 
       - name: Create zipball
         run: |
-          git archive --format=zip --prefix=opencortex-$(git describe --tags) HEAD -o opencortex.zip
+          git archive --format=zip --prefix=passepartout-$(git describe --tags) HEAD -o passepartout.zip
 
       - name: Upload to GitHub Release
         uses: softprops/action-gh-release@v2
         with:
           files: |
-            opencortex.tar.gz
-            opencortex.zip
+            passepartout.tar.gz
+            passepartout.zip
           generate_release_notes: true