Fix autoentity validation & CLI/Schema mismatch bugs

[RubenCerna2079]

Why make this change?

• [Bug]: Invalid CLI dab auto-config --template.mcp.dml-tool #3375
  • The CLI and the schema have a mismatch in the autoentities.<def-name>.template.mcp.dml-tools, need to ensure that they are the same.
• [Bug]: autoentities and dab validate #3335
  • Using dab validate produces the wrong output message.

What is this change?

For issue #3375:

• We changed the AutoConfigOption.cs file so that it uses the proper name and changed the name of the variable to also match the schema in the ConfigGenerator.cs.

For issue #3335:

• We changed the log message in MsSqlMetadataProvider.cs so that it is easier for the user to understand the error.
• We also added a try-catch to the validation logic in the ConfigGenerator.cs so that instead of outputing an exception when dab throws an error it just logs the exception.

How was this tested?

• Integration Tests
• Unit Tests
• Local Testing
  The issues were related to mismatches or to the output of log messages that can only be tested locally.

Sample Request(s)

dab auto-config --template.mcp.dml-tools true/false
dab validate --config test.json

[Copilot]

Pull request overview

This PR addresses two CLI/autoentities bugs in Data API builder: aligning the dab auto-config option naming with the JSON schema and improving dab validate behavior/error messaging when autoentity generation fails due to conflicts.

Changes:

• Renames the CLI option from template.mcp.dml-tool to template.mcp.dml-tools to match the schema and updates related wiring in config generation.
• Updates the autoentity/entity name conflict message in the MSSQL metadata provider to be more actionable.
• Wraps CLI validation in try/catch to avoid unhandled exceptions and log errors instead.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 5 comments.

File	Description
src/Core/Services/MetadataProviders/MsSqlMetadataProvider.cs	Updates conflict exception text for autoentity generation.
src/Cli/ConfigGenerator.cs	Adds exception handling to IsConfigValid and renames template MCP dml-tools option usage.
src/Cli/Commands/AutoConfigOptions.cs	Renames the CLI option to template.mcp.dml-tools and updates the corresponding property.

[souvikghosh04]

Added some comments

[Aniruddh25]

The PR description says:

"We also added a try-catch to the validation logic in the ConfigGenerator.cs so that instead of outputing an exception when dab throws an error it just logs the exception."

Where is this try-catch?

[Aniruddh25]

Not certain if the changes really work for issue #3335