Epic: MCP management UI designs

[R-Lawton]

Right now managing MCP Gateways means writing YAML and running oc commands. There's no way to see what's registered, test tools, or register new servers without switching between the terminal, YAML files, and external tooling like MCP Inspector.

This epic adds an MCP management section to the OpenShift console — browse servers, inspect tools and prompts, test tool execution, register new servers through a guided form, and see gateway health at a glance. One place to operate the gateway instead of three.

Designs: https://www.figma.com/proto/oizjCN6EVed31dW71YXS3K/RHCL-MCP?node-id=137-138949

Issues

• Setup wizard: MCP infrastructure setup #666 Setup wizard: MCP infrastructure setup. Done.
• Setup wizard: MCP server registration #673 Setup wizard: MCP server registration. Done.
• MCP management overview page #670 MCP management overview page. Done.
• Standalone resource pages — MCPGatewayExtension, MCPServerRegistration & HTTPRoute #668 Standalone resource pages: MCPGatewayExtension, MCPServerRegistration and HTTPRoute. Done.
• Standalone resource pages — Gateway & Reference grant #669 Standalone resource pages: Gateway and Reference grant. Done.
• Validate the direct-CORS PoC on a real cluster (auth + HTTPS) #753 Validate the direct-CORS PoC. Closed, replaced by Validate the MCP Inspector backend proxy approach #776.
• Validate the MCP Inspector backend proxy approach #776 Validate the MCP Inspector backend proxy approach. Done.
• MCP Inspector — client and gateway discovery foundation #752 MCP Inspector client and gateway discovery foundation. Superseded by Validate the MCP Inspector backend proxy approach #776 and Add MCP Inspector Tools and Prompts #779.
• MCP Inspector — Tools #671 MCP Inspector: Tools. In progress in Add MCP Inspector Tools and Prompts #779 and Add MCP Inspector plugin backend kuadrant-operator#2206.
• MCP Inspector — Prompts #672 MCP Inspector: Prompts. Follows MCP Inspector — Tools #671.
• Logs tab: no issue yet.

Setup flow polish is tracked separately in #757.