feat: reword phase to epic, update mkdocs

docs/content/stories/epic8/README.md

@@ -0,0 +1,40 @@
+# Epic 8: Advanced Features & Polish
+
+## Overview
+Add advanced features (OIDC, GraphQL, API Gateway), performance optimization, additional sample modules, and final polish and bug fixes.
+
+## Stories
+
+### 8.1 OpenID Connect (OIDC) Support
+- [Story: 8.1 - OIDC Support](./8.1-oidc-support.md)
+- **Goal:** Add OpenID Connect (OIDC) support for external identity providers.
+- **Deliverables:** OIDC client, OIDC provider (optional), documentation
+
+### 8.2 GraphQL API
+- [Story: 8.2 - GraphQL API](./8.2-graphql-api.md)
+- **Goal:** Add optional GraphQL API alongside REST API.
+- **Deliverables:** GraphQL schema, resolvers, GraphQL endpoint
+
+### 8.3 Additional Sample Modules
+- [Story: 8.3 - Additional Modules](./8.3-additional-modules.md)
+- **Goal:** Create additional sample modules to demonstrate different use cases.
+- **Deliverables:** Notification module, Analytics module
+
+### 8.4 Final Polish and Optimization
+- [Story: 8.4 - Final Polish](./8.4-final-polish.md)
+- **Goal:** Final polish, bug fixes, performance optimization, and security audit.
+- **Deliverables:** Code review, bug fixes, performance optimization, security audit, documentation review
+
+## Deliverables Checklist
+- [ ] OIDC support (optional)
+- [ ] GraphQL API (optional)
+- [ ] Additional sample modules
+- [ ] Performance optimizations
+- [ ] Final polish
+
+## Acceptance Criteria
+- Advanced features work correctly
+- Performance is optimized
+- Code quality is high
+- Security audit passes
+- Documentation is complete