Add QIDI Studio MCP v1.8.0

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Summary

• Adds the embedded QIDI Studio MCP v1.8.0 server and its 115-tool suite.
• Adds the integrated Tunnel Manager and tunnel lifecycle scripts.
• Exposes project, object, plate, profile, slicing, printing, monitoring, recovery, adaptive-layer-height, surface-painting, filament, and diagnostic workflows.
• Synchronizes the MCP implementation with upstream main.

Why

This gives compatible AI clients structured, state-aware control of QIDI Studio without screen automation or a separately managed bridge.

Compatibility target: QIDI Studio 2.7.2.10.

Validation

• Windows RelWithDebInfo upstream-compatibility build passed.
• The newly built QIDI Studio launched normally.
• The MCP menu and Tunnel Manager worked correctly.
• All 115 tools registered.
• Tunnel health and heartbeat checks passed.
• Project, object, plate, and preset reads passed.
• Modal-dialog safety behaved correctly.
• GitHub reports this PR as mergeable.

Review note

This PR is ready for upstream review. The branch is synchronized with the current upstream base.