docs: remove 'production ready' marketing speak

Replaced with more straightforward language:
- 'production-ready features' → removed
- 'Production Ready' → 'Built for Reliability'

Removed from:
- README.md tagline and highlights section
- artifacthub-pkg.yml descriptions (both locations)

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

README.md

@@ -6,7 +6,7 @@
 [![Test Coverage](https://img.shields.io/badge/coverage-92%25-brightgreen)](headlamp-sealed-secrets/)
 [![TypeScript](https://img.shields.io/badge/TypeScript-5.6.2-blue)](https://www.typescriptlang.org/)
 
-A comprehensive [Headlamp](https://headlamp.dev) plugin for managing [Bitnami Sealed Secrets](https://github.com/bitnami-labs/sealed-secrets) with **client-side encryption**, **RBAC-aware UI**, and **production-ready features**.
+A comprehensive [Headlamp](https://headlamp.dev) plugin for managing [Bitnami Sealed Secrets](https://github.com/bitnami-labs/sealed-secrets) with **client-side encryption** and **RBAC-aware UI**.
 
 > 🔐 **Zero Trust Security**: All encryption happens in your browser. Plaintext secrets never leave your machine.
 
@@ -28,7 +28,7 @@ A comprehensive [Headlamp](https://headlamp.dev) plugin for managing [Bitnami Se
 - **WCAG 2.1 AA Compliant**: Semantic HTML, ARIA labels, keyboard navigation
 - **Screen Reader Support**: Descriptive labels and live regions
 
-### 🎯 Production Ready
+### 🎯 Built for Reliability
 - **Health Monitoring**: Real-time controller status checks
 - **Input Validation**: Kubernetes-compliant name/value validation
 - **Retry Logic**: Exponential backoff with jitter for resilient API calls