fix: feat: lib/vault.sh — helper for agents to create vault PRs on ops repo (#75)

lib/pr-lifecycle.sh

@@ -110,15 +110,17 @@ pr_create() {
 
 # ---------------------------------------------------------------------------
 # pr_find_by_branch — Find an open PR by head branch name.
-# Args: branch
+# Args: branch [api_url]
 # Stdout: PR number
 # Returns: 0=found, 1=not found
+# api_url defaults to FORGE_API if not provided
 # ---------------------------------------------------------------------------
 pr_find_by_branch() {
   local branch="$1"
+  local api_url="${2:-${FORGE_API}}"
   local pr_num
   pr_num=$(curl -sf -H "Authorization: token ${FORGE_TOKEN}" \
-    "${FORGE_API}/pulls?state=open&limit=20" | \
+    "${api_url}/pulls?state=open&limit=20" | \
     jq -r --arg b "$branch" '.[] | select(.head.ref == $b) | .number' \
     | head -1) || true
   if [ -n "$pr_num" ]; then