Rename CLUSTER-READY → K8S-CLUSTER (more direct)

Also added:
- DEVELOPMENT-WORKFLOW.md - Complete dev process documented
- Updated all references across documentation

Documentation is now centralized and direct.

Co-Authored-By: Claude Sonnet 4.5 (1M context) <noreply@anthropic.com>

NEXT-SESSION.md

@@ -31,7 +31,7 @@ curl -I https://git.fuq.tv
 # HTTP/2 200
 ```
 
-**Si algo falla, consulta**: `CLUSTER-READY.md` y `TROUBLESHOOTING.md`
+**Si algo falla, consulta**: `K8S-CLUSTER.md` y `TROUBLESHOOTING.md`
 
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