fix(plugin): remove invalid commands array from plugin.json

The `commands` field in plugin.json used an array format not supported
by the Claude Code plugin schema, causing "Invalid input" validation
errors on install. Claude Code auto-discovers commands from the
commands/ directory — no explicit declaration needed.

Bump version to 5.1.1.

Author: JeremyDev87

.claude-plugin/marketplace.json

@@ -12,7 +12,7 @@
       "name": "codingbuddy",
       "source": "./packages/claude-code-plugin",
       "description": "PLAN/ACT/EVAL workflow, specialist agents, and reusable skills for systematic TDD development",
-      "version": "5.1.0",
+      "version": "5.1.1",
       "category": "development"
     }
   ]

apps/mcp-server/package.json

@@ -1,6 +1,6 @@
 {
   "name": "codingbuddy",
-  "version": "5.1.0",
+  "version": "5.1.1",
   "description": "Multi-AI Rules MCP Server - One source of truth for AI coding rules across all AI assistants",
   "author": "JeremyDev87",
   "license": "MIT",
@@ -103,4 +103,3 @@
   },
   "packageManager": "yarn@4.11.0"
 }
-

apps/mcp-server/src/shared/version.ts

@@ -2,4 +2,4 @@
  * Single source of truth for the runtime package version.
  * Updated automatically by scripts/bump-version.sh on each release.
  */
-export const VERSION = '5.1.0';
+export const VERSION = '5.1.1';

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

@@ -1,17 +1,9 @@
 {
   "name": "codingbuddy",
-  "version": "5.1.0",
+  "version": "5.1.1",
   "description": "PLAN/ACT/EVAL workflow with auto-detection, specialist agents, and reusable skills for systematic TDD development",
   "author": {
     "name": "JeremyDev87",
     "email": "soundbrokaz@kakao.com"
-  },
-  "commands": [
-    {
-      "name": "buddy",
-      "description": "Show project status, recommended agents, and next actions",
-      "file": "../commands/buddy.md",
-      "user-invocable": true
-    }
-  ]
+  }
 }

packages/claude-code-plugin/package.json

@@ -1,6 +1,6 @@
 {
   "name": "codingbuddy-claude-plugin",
-  "version": "5.1.0",
+  "version": "5.1.1",
   "description": "Claude Code Plugin for CodingBuddy - PLAN/ACT/EVAL workflow, specialist agents, and reusable skills",
   "author": "JeremyDev87",
   "license": "MIT",
@@ -49,7 +49,7 @@
     "test:coverage": "vitest run --coverage"
   },
   "peerDependencies": {
-    "codingbuddy": "^5.1.0"
+    "codingbuddy": "^5.1.1"
   },
   "peerDependenciesMeta": {
     "codingbuddy": {

packages/rules/package.json

@@ -1,6 +1,6 @@
 {
   "name": "codingbuddy-rules",
-  "version": "5.1.0",
+  "version": "5.1.1",
   "description": "AI coding rules for consistent practices across AI assistants",
   "main": "index.js",
   "types": "index.d.ts",