Upload built book artifacts using github-supported method

.github/workflows/main.yml

@@ -69,25 +69,27 @@ jobs:
         cd ./book/_build/latex/
         echo "Entered LaTeX folder, preparing to build PDF"
         make
+        echo "PDF build successful, uploading artifacts now"
 
-    - name: Show debug logs and return to repo root
+    # Output build artifacts for debugging
+    - uses: actions/upload-artifact@v4
       continue-on-error: true
-      run: |
-        echo $(pwd)
-        # show debug logs
-        cat elara-handbook.log # debug
-        # move built book out of build folder
-        mv elara-handbook.pdf ../../elara-handbook.pdf
+      with:
+        path: ./book/_build/latex/elara-handbook.log
+        compression-level: 0
 
-    - name: Output build artifacts for debugging
-      run: |
-        # we use temp.sh, a temporary file host service
-        echo "PDF build log"
-        curl -F "file=@book/_build/latex/elara-handbook.log" https://temp.sh/upload
-        echo "TeX generated (may be incomplete)"
-        curl -F "file=@book/_build/latex/elara-handbook.tex" https://temp.sh/upload
-        echo "PDF generated (may be incomplete)"
-        curl -F "file=@book/_build/latex/elara-handbook.pdf" https://temp.sh/upload
+    - uses: actions/upload-artifact@v4
+      continue-on-error: true
+      with:
+        path: ./book/_build/latex/elara-handbook.tex
+        compression-level: 0
+
+    - uses: actions/upload-artifact@v4
+      continue-on-error: true
+      with:
+        name: elara-handbook-debug-pdf
+        path: ./book/_build/latex/elara-handbook.pdf
+        compression-level: 0
 
     - name: Upload book PDF to Github releases
       env:
@@ -100,4 +102,4 @@ jobs:
           --tag_name v0.0.0-$(git rev-parse HEAD | cut -c 1-8) \
           --prerelease \
           --body_string "Automatically generated from book sources via Github Actions" \
-          ./book/elara-handbook.pdf
+          ./book/_build/latex/elara-handbook.pdf