chore(release): bump codingbuddy-claude-plugin version to 4.2.0

Fix version mismatch: claude-plugin was stuck at 4.1.0 while other
packages were already at 4.2.0.

Author: JeremyDev87

packages/claude-code-plugin/.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "codingbuddy",
-  "version": "4.1.0",
+  "version": "4.2.0",
   "description": "PLAN/ACT/EVAL workflow with auto-detection, specialist agents, and reusable skills for systematic TDD development",
   "author": {
     "name": "JeremyDev87",

packages/claude-code-plugin/package.json

@@ -1,6 +1,6 @@
 {
   "name": "codingbuddy-claude-plugin",
-  "version": "4.1.0",
+  "version": "4.2.0",
   "description": "Claude Code Plugin for CodingBuddy - PLAN/ACT/EVAL workflow, specialist agents, and reusable skills",
   "author": "JeremyDev87",
   "license": "MIT",
@@ -46,7 +46,7 @@
     "test:coverage": "vitest run --coverage"
   },
   "peerDependencies": {
-    "codingbuddy": "^4.1.0"
+    "codingbuddy": "^4.2.0"
   },
   "peerDependenciesMeta": {
     "codingbuddy": {