Add timeout for registry image publish

[MattBabbage]

This pull request updates the MCP server release workflow, Docker image, and configuration to improve reliability, ensure compliance with MCP registry requirements, and fix metadata issues.

[Copilot]

Pull Request Overview

This pull request enhances the MCP server release workflow by adding timeout mechanisms for Docker image publishing, updating schema versions for compliance, and improving configuration validation. The changes focus on reliability improvements for the registry publishing process.

Key changes:

• Added timeout logic to wait for Docker image availability before registry publishing
• Updated MCP schema version and cleaned up server configuration
• Enhanced workflow with better error handling and validation steps

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
server.json	Updated schema version and cleaned registry configuration
Dockerfile	Added required MCP server annotation label
.github/workflows/registry-releaser.yml	Enhanced workflow with timeout, validation, and better error handling

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[SamMorrowDrums]

@MattBabbage is this something that still needs addressing?

[SamMorrowDrums]

Closing as superseded by #1174, which already landed the 'Wait for Docker image' step on main in a more complete form (10 retries / 5 min, plus the checkout@v6 bump). Thanks Matt — the only remaining unique change here was a cosmetic log-message tweak, not worth carrying a separate PR for.