KI-Stack 2.19: Desktop Control via MCP Runtime

[robertbackhaus-a11y]

Summary

• integrates Desktop Control into the existing MCP Runtime
• adds 10 flat ui_* MCP tools
• keeps the existing runtime, port 8021 and credential model
• adds persistent MCP Runtime package delivery
• adds source/payload parity and repair handling
• fixes component ordering: winapp -> desktop-control -> mcp-runtime
• adds generic payload-version contract validation
• fixes idempotent OpenWebUI validation profile handling

Validation

• repository gate: 37/37 passed
• MCP Runtime live acceptance: passed
• 22 tools discovered
• all 10 ui_* tools present
• forbidden UI tools absent
• real ui_list_windows end-to-end call passed
• OpenWebUI agent validation passed
• Complete Installer payload validation passed
• payload version contract passed
• source-only build confirmed

Release candidate

Complete Installer: 2.19.0
SHA256:
9b9aa06500534209cc506dbd30f7ba450109ca344e61668fbd3d41acaa2675d6