chore: bump version to 6.2.0-alpha.23

Version scheme:
- 6.2.0 = fork feature version (hospital-grade workflow enhancements)
- alpha.23 = upstream version aligned with (easy tracking of how far behind upstream)

Features in 6.2.0:
- Complete a-k workflow (11 steps)
- Hospital-grade code standards
- Test-driven development
- Multi-agent review with fresh context
- Smart gap analysis
- Mandatory quality gates and status tracking
- Interactive and autonomous execution modes

Based on upstream: 6.0.0-alpha.23

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@jonahschulte/bmad-method",
-  "version": "6.1.0-alpha.23",
+  "version": "6.2.0-alpha.23",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@jonahschulte/bmad-method",
-      "version": "6.1.0-alpha.23",
+      "version": "6.2.0-alpha.23",
       "license": "MIT",
       "dependencies": {
         "@clack/prompts": "^0.11.0",

package.json

@@ -1,8 +1,8 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
   "name": "@jonahschulte/bmad-method",
-  "version": "6.1.0-alpha.23",
-  "description": "Breakthrough Method of Agile AI-driven Development (Enhanced with complexity-based routing and smart batching)",
+  "version": "6.2.0-alpha.23",
+  "description": "Breakthrough Method of Agile AI-driven Development (Enhanced with hospital-grade quality, TDD, and intelligent multi-agent review)",
   "keywords": [
     "agile",
     "ai",