Fix Bug: remove erroneous definitions_path

[wenhaozhao]

1 remove erroneous definitions_path setting,"#/components/schemas/" is used for openapi3 2 show meta_schema

Motivation and Context

How Has This Been Tested?

Breaking Changes

Types of changes

• [ ✅ ] Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• [✅ ] I have read the MCP Documentation
• [ ✅] My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have added or updated documentation as needed

Additional context

[Copilot]

Pull Request Overview

This PR removes an incorrect definitions_path override and switches the JSON schema generator to use the draft-07 settings.

• Use SchemaSettings::draft07() instead of the default settings
• Remove definitions_path and meta_schema overrides
• Comment out the inline_subschemas setting

Comments suppressed due to low confidence (1)

crates/rmcp/src/handler/server/tool.rs:17

• [nitpick] Rephrase this comment to clarify that SchemaSettings::draft07() is used to match the JSON Schema draft-07 specification, e.g., "Use SchemaSettings::draft07() to align with the JSON Schema draft-07 specification."

// explicitly to align json schema version to official specifications.

[jokemanfire]

This problem is still in processing , you can see discussion .The spec is modifying . We can merge it now, but this still needs to be modified in future.

[wenhaozhao]

This problem is still in processing , you can see discussion .The spec is modifying . We can merge it now, but this still needs to be modified in future.

Okay, we look forward to the authorities providing a clear standard as soon as possible.