chore: bump version to 6.3.7-alpha.23

**What's New:**
- Automated learning feedback loop (Step 1b + 12)
- Critical enforcement fixes (per-task checkbox verification)
- ONE canonical filename format
- Production-hardened from Epic 18 battle-testing
- All 352 tests passing

**Learning Features:**
- Load playbooks before implementation (Step 1b)
- Extract learnings after completion (Step 12)
- Markdown storage with rich frontmatter
- Cumulative intelligence across stories
- Self-improving system

Ready for production use with Epic 18!

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@jonahschulte/bmad-method",
-  "version": "6.3.6-alpha.23",
+  "version": "6.3.7-alpha.23",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@jonahschulte/bmad-method",
-      "version": "6.3.6-alpha.23",
+      "version": "6.3.7-alpha.23",
       "license": "MIT",
       "dependencies": {
         "@clack/prompts": "^0.11.0",

package.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
   "name": "@jonahschulte/bmad-method",
-  "version": "6.3.6-alpha.23",
+  "version": "6.3.7-alpha.23",
   "description": "Breakthrough Method of Agile AI-driven Development (Enhanced with TDD, intelligent multi-agent review, and production-hardened enforcement)",
   "keywords": [
     "agile",