chore: bump version to 0.5.1 and update changelog

Fix release workflow to handle duplicate MCP Registry version on re-runs.

Author: luarss

.github/workflows/release.yml

@@ -120,4 +120,12 @@ jobs:
         run: ./mcp-publisher login github-oidc
 
       - name: Publish to MCP Registry
-        run: ./mcp-publisher publish
+        run: |
+          output=$(./mcp-publisher publish 2>&1)
+          exit_code=$?
+          echo "$output"
+          if [ $exit_code -ne 0 ] && echo "$output" | grep -q "cannot publish duplicate version"; then
+            echo "Version already published to MCP Registry — skipping (idempotent re-run)"
+            exit 0
+          fi
+          exit $exit_code

CHANGELOG.md

@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.5.1] - 2026-05-17
+
+### Fixed
+- Release workflow: handle duplicate MCP Registry version gracefully on re-runs
+
 ## [0.5.0] - 2026-05-17
 
 ### Added

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "openroad-mcp"
-version = "0.5.0"
+version = "0.5.1"
 authors = [
     {name = "Precision Innovations", email="jluar@precisioninno.com"},
 ]