scripts: expose PR URL in review workflow output

scripts/pr-lib/common.sh

@@ -74,6 +74,10 @@ changelog_required_for_changed_files() {
 print_review_stdout_summary() {
   require_artifact .local/review.md
   require_artifact .local/review.json
+  require_artifact .local/pr-meta.env
+
+  # shellcheck disable=SC1091
+  source .local/pr-meta.env
 
   local recommendation
   recommendation=$(jq -r '.recommendation // ""' .local/review.json)
@@ -81,6 +85,7 @@ print_review_stdout_summary() {
   finding_count=$(jq '[.findings[]?] | length' .local/review.json)
 
   echo "review summary:"
+  echo "pr_url=${PR_URL:-}"
   echo "recommendation: $recommendation"
   echo "findings: $finding_count"
   cat .local/review.md

scripts/pr-lib/prepare-core.sh

@@ -178,6 +178,7 @@ EOF_PREP
   printf '%s=%q\n' \
     PR_NUMBER "$PR_NUMBER" \
     PR_AUTHOR "$contrib" \
+    PR_URL "${PR_URL:-}" \
     PR_HEAD "$PR_HEAD" \
     PR_HEAD_SHA_BEFORE "$pushed_from_sha" \
     PREP_HEAD_SHA "$prep_head_sha" \
@@ -187,6 +188,7 @@ EOF_PREP
   ls -la .local/prep.md .local/prep.env >/dev/null
 
   echo "prepare-push complete"
+  echo "pr_url=${PR_URL:-}"
   echo "prep_branch=$(git branch --show-current)"
   echo "prep_head_sha=$prep_head_sha"
   echo "pr_head_sha=$pr_head_sha_after"
@@ -251,6 +253,7 @@ EOF_PREP
   printf '%s=%q\n' \
     PR_NUMBER "$PR_NUMBER" \
     PR_AUTHOR "$contrib" \
+    PR_URL "${PR_URL:-}" \
     PR_HEAD "$PR_HEAD" \
     PR_HEAD_SHA_BEFORE "$pushed_from_sha" \
     PREP_HEAD_SHA "$prep_head_sha" \
@@ -260,6 +263,7 @@ EOF_PREP
   ls -la .local/prep.md .local/prep.env >/dev/null
 
   echo "prepare-sync-head complete"
+  echo "pr_url=${PR_URL:-}"
   echo "prep_branch=$(git branch --show-current)"
   echo "prep_head_sha=$prep_head_sha"
   echo "pr_head_sha=$pr_head_sha_after"
@@ -272,4 +276,5 @@ prepare_run() {
   prepare_gates "$pr"
   prepare_push "$pr"
   echo "prepare-run complete for PR #$pr"
+  echo "pr_url=${PR_URL:-}"
 }

scripts/pr-lib/review.sh

@@ -514,6 +514,7 @@ review_init() {
 
   printf '%s\n' "$json" | jq '{number,title,url,state,isDraft,author:.author.login,base:.baseRefName,head:.headRefName,headSha:.headRefOid,headRepo:.headRepository.nameWithOwner,additions,deletions,files:(.files|length)}'
   echo "worktree=$PWD"
+  echo "pr_url=${PR_URL:-}"
   echo "merge_base=$mb"
   echo "branch=$(git branch --show-current)"
   echo "wrote=.local/pr-meta.json .local/pr-meta.env .local/review-context.env .local/review-mode.env"