chore: bump versions to v2.1.0

- java-core: 2.0.0 → 2.1.0
- java-spring: 2.0.0 → 2.1.0
- java-quality: 1.0.0 (new plugin)
- marketplace: 2.0.0 → 2.1.0

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: ducpm2303

.claude-plugin/marketplace.json

@@ -5,21 +5,21 @@
   },
   "metadata": {
     "description": "Java developer toolkit for Claude Code — general Java, Spring Boot, and quality (security + performance + testing)",
-    "version": "3.0.0"
+    "version": "2.1.0"
   },
   "plugins": [
     {
       "name": "java-core",
       "source": "./plugins/java-core",
       "description": "General Java skills (review, refactor, explain, fix, docs, health, concurrency, API, migration, commit, SOLID, design patterns, ADR) and architect + build-resolver agents",
-      "version": "3.0.0",
+      "version": "2.1.0",
       "keywords": ["java", "core", "review", "refactor", "solid", "design-patterns", "concurrency", "migrate", "adr"]
     },
     {
       "name": "java-spring",
       "source": "./plugins/java-spring",
       "description": "Spring Boot skills (scaffold new projects, JPA review, logging review, CRUD generator) and Spring expert agent. Supports Spring Boot 2.7.x through 4.0.x.",
-      "version": "3.0.0",
+      "version": "2.1.0",
       "keywords": ["java", "spring", "spring-boot", "scaffold", "jpa", "crud", "logging"]
     },
     {

plugins/java-core/.claude-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "java-core",
   "description": "General Java skills, architect agent, and coding standards for Java 8+",
-  "version": "3.0.0",
+  "version": "2.1.0",
   "author": {
     "name": "java-plugins contributors"
   },

plugins/java-spring/.claude-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "java-spring",
   "description": "Spring Boot scaffold skill and Spring expert agent for Java 8+ projects",
-  "version": "3.0.0",
+  "version": "2.1.0",
   "author": {
     "name": "java-plugins contributors"
   },