chore: bump version to 6.0.0-Beta.3

**What's New in Beta.3:**
- Fixed slash command enforcement (allows user-interactive workflows)
- All enforcement fixes from craftedcall production testing
- Automated learning feedback loop (Step 1b + 12)
- Agent reasoning for playbook selection
- All 352 tests passing

**Key Fix:**
User slash commands run in main context (interactive prompts work)
Internal workflow calls use Task agents (fresh context)

Ready for production use!

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@jonahschulte/bmad-method",
-  "version": "6.0.0-Beta.2",
+  "version": "6.0.0-Beta.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@jonahschulte/bmad-method",
-      "version": "6.0.0-Beta.2",
+      "version": "6.0.0-Beta.3",
       "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": "6.0.0-Beta.2",
+  "version": "6.0.0-Beta.3",
   "description": "Breakthrough Method of Agile AI-driven Development (Enhanced with TDD, intelligent multi-agent review, and production-hardened enforcement)",
   "keywords": [
     "agile",