feat(capsule): add first capsule version

[chifu1234]

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[Copilot]

Pull Request Overview

This PR introduces the first version of a Capsule plugin for Headlamp, enabling management and visualization of Capsule tenant resources in a Kubernetes cluster. The plugin provides UI components for listing and viewing tenant details, along with namespace filtering capabilities.

Key changes:

• Added Kubernetes custom resource definitions and TypeScript interfaces for Capsule Tenants
• Implemented UI components for tenant listing and detail views with routing
• Configured plugin structure with TypeScript, ESLint, and build tooling

Reviewed Changes

Copilot reviewed 8 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
capsule/package.json	Defines plugin metadata, scripts, and dependencies for the Headlamp plugin
capsule/tsconfig.json	Extends Headlamp plugin TypeScript configuration
capsule/src/index.tsx	Registers plugin routes, sidebar entries, and app bar actions
capsule/src/resources/tenants.ts	Defines Tenant resource class and comprehensive TypeScript interfaces
capsule/src/components/tenantList.tsx	Implements list view component for displaying tenants
capsule/src/components/tenantProject.tsx	Implements detail view component for individual tenant resources
capsule/src/utils/namespace.tsx	Provides utility component for setting namespace filters via Redux
capsule/README.md	Contains basic plugin documentation template

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