Use random heredoc delimiters for GITHUB_OUTPUT to avoid collisions

Replaces fixed SUMMARY_EOF/COMMITS_EOF delimiters with randomized ones
(EOF_<random hex>) and adds an extra blank line before the closing
delimiter to ensure GitHub parses the multiline output correctly.

Co-authored-by: Florian Rival <4ian@users.noreply.github.com>

Author: cursoragent

.github/workflows/improve-docs.yml

@@ -62,10 +62,12 @@ jobs:
 
           # Pass the AI summary to subsequent steps
           if [ -f /tmp/ai_summary.txt ]; then
+            delimiter="EOF_$(openssl rand -hex 8)"
             {
-              echo "summary<<SUMMARY_EOF"
+              echo "summary<<${delimiter}"
               cat /tmp/ai_summary.txt
-              echo "SUMMARY_EOF"
+              echo ""
+              echo "${delimiter}"
             } >> "$GITHUB_OUTPUT"
           fi
 

.github/workflows/update-docs-from-commits.yml

@@ -62,17 +62,21 @@ jobs:
 
           # Pass the AI summary and commit log to subsequent steps
           if [ -f /tmp/ai_summary.txt ]; then
+            delimiter="EOF_$(openssl rand -hex 8)"
             {
-              echo "summary<<SUMMARY_EOF"
+              echo "summary<<${delimiter}"
               cat /tmp/ai_summary.txt
-              echo "SUMMARY_EOF"
+              echo ""
+              echo "${delimiter}"
             } >> "$GITHUB_OUTPUT"
           fi
           if [ -f /tmp/commit_log.txt ]; then
+            delimiter="EOF_$(openssl rand -hex 8)"
             {
-              echo "commits<<COMMITS_EOF"
+              echo "commits<<${delimiter}"
               cat /tmp/commit_log.txt
-              echo "COMMITS_EOF"
+              echo ""
+              echo "${delimiter}"
             } >> "$GITHUB_OUTPUT"
           fi