chore: Edit .github/scripts/bot-assignment-check.sh so max assignment limit only applies to issues, it excludes PRs (hiero-ledger#1739)

Signed-off-by: AkshayKumarSahu <akshaykumar15031999@gmail.com>
Signed-off-by: Akshay Kumar <akshaykumar15031999@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: AkshayKumarSahu

.github/scripts/bot-assignment-check.sh

@@ -36,7 +36,8 @@ issue_has_gfi() {
 }
 
 assignments_count() {
-  gh issue list --repo "${REPO}" --assignee "${ASSIGNEE}" --state open --limit 100 --json number --jq 'length'
+  # Count only issues (not PRs) assigned to the user, using structured isPullRequest field
+  gh issue list --repo "${REPO}" --assignee "${ASSIGNEE}" --state open --limit 100 --json number,isPullRequest --jq '[.[] | select(.isPullRequest | not)] | length'
 }
 
 remove_assignee() {
@@ -75,7 +76,7 @@ Hi @$ASSIGNEE, this is the Assignment Bot.
 
 :warning: **Assignment Limit Exceeded**
 
-Your account currently has limited assignment privileges with a maximum of **1 open assignment** at a time.
+Your account currently has limited assignment privileges with a maximum of **1 open issue assignment** at a time.
 
 You currently have $count open issue(s) assigned.  Please complete and merge your existing assignment before requesting a new one.
 
@@ -96,7 +97,7 @@ msg_normal_limit_exceeded() {
   cat <<EOF
 Hi @$ASSIGNEE, this is the Assignment Bot.
 
-Assigning you to this issue would exceed the limit of 2 open assignments.
+Assigning you to this issue would exceed the limit of 2 open issue assignments.
 
 Please resolve and merge your existing assigned issues before requesting new ones.
 EOF

CHANGELOG.md

@@ -257,6 +257,7 @@ This changelog is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.
 - chore: update MAINTAINERS.md to include new maintainer Manish Dait and sort maintainers by GitHub ID. (#1691)
 
 ### Fixed
+- Fixed assignment limit check to only count issues (not PRs) towards the maximum 2 concurrent assignments, allowing users to be assigned to PRs without affecting their issue assignment capacity. (#1717)
 - Updated Good First Issue recommendations to supported Hiero repositories. (#1689)
 - Fix the next-issue recommendation bot to post the correct issue recommendation comment. (#1593)
 - Ensured that the GFI assignment bot skips posting `/assign` reminders for repository collaborators to avoid unnecessary notifications.(#1568).