Update and rename harper.yml to docs-quality.yml

Author: Amanda-dong

.github/workflows/harper.yml .github/workflows/docs-quality.yml.github/workflows/harper.yml renamed to .github/workflows/docs-quality.yml

@@ -38,8 +38,22 @@ jobs:
           import os
           import sys
 
-          with open("cspell-report.json", encoding="utf-8") as f:
-              data = json.load(f)
+          try:
+              with open("cspell-report.json", encoding="utf-8") as f:
+                  content = f.read().strip()
+          except FileNotFoundError:
+              content = ""
+
+          if not content:
+              print("::error::cspell-report.json is empty. Check the previous step's log for the actual cspell error (e.g. missing cspell.json or project-words.txt).")
+              sys.exit(1)
+
+          try:
+              data = json.loads(content)
+          except json.JSONDecodeError:
+              print("::error::cspell-report.json is not valid JSON. Raw output was:")
+              print(content[:2000])
+              sys.exit(1)
 
           issues = data.get("issues", [])
           for issue in issues:
@@ -54,12 +68,17 @@ jobs:
           sys.exit(1 if issues and not allow_failure else 0)
           PY
 
-  grammar:
+  heading-case:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: actions/cache@v4
-        with:
+      - run: |
+          python check_heading_case.py docs src/pages || {
+            if [ "$ALLOW_FAILURE" = "true" ]; then
+              exit 0
+            fi
+            exit 1
+          }        with:
           path: |
             ~/.cargo/bin
             ~/.cargo/registry