fix: bump dmk versions, fix minor bugs, autogen signer types

[sontuphan]

Description

This PR bumps DMK dependencies to the latest compatible versions, fixes several minor bugs uncovered during integration and testing, and adds auto-generated signer types to improve type safety and developer experience.

Motivation and Context

Keeping DMK dependencies up to date ensures compatibility with recent ecosystem changes and reduces maintenance overhead.
During the upgrade, a few minor issues were identified and fixed.
Auto-generating signer types eliminates manual type definitions, reduces the risk of inconsistencies, and improves correctness when working with signers.

Related Issue

PR fixes the following issue: See the comments

Type of change

• 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 not work as expected)
• This change requires a documentation update