chore: ignore .mcp.json (Claude Code project MCP config)

[ammachado]

Description

Adds .mcp.json to .gitignore.

.mcp.json is Claude Code's project-scoped MCP server configuration file. It is a local developer-tooling artifact and should not be committed to the repository, similar to the existing .claude entry it is grouped next to.

Rationale

• Prevents contributors who use Claude Code from accidentally committing personal/local MCP server definitions.
• Consistent with the already-ignored .claude directory (AI tooling artifacts).

No production, build, or runtime code is affected.

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Claude Code on behalf of ammachado

🤖 Generated with Claude Code

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[gnodet]

Claude Code review on behalf of @gnodet

Trivial and correct. .mcp.json is Claude Code's project-scoped MCP server config — a local developer-tooling artifact that should not be committed, consistent with the already-ignored .claude directory it sits next to.

LGTM.

[ammachado]

Build failed with:

Error: Exception in thread "main" java.io.IOException: Server returned HTTP response code: 403 for URL: https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.16/apache-maven-3.9.16-bin.zip