SQLBI Whiteboard 0.1.0 (dev 3210)

Publish only the self-contained build (#10)

Each release carried six assets, including names like

\`SQLBI.Whiteboard.0.1.0.x64-frameworkdependent-dev-userinstaller.msi\`,
which asks a visitor
to decode four dimensions before downloading anything.

Releases now carry three: the per-machine installer, the per-user
installer, and the portable
ZIP, all self-contained. Self-contained is about 60 MB against 8 MB but
needs no .NET runtime
installed, which is the right trade for someone who just wants the
application. The
framework-dependent build is still produced and kept as a pipeline
artifact.

Documentation updated alongside: `release-management.md` records that
the chain is proven by
run 3209 and the prerelease it published, and notes the ten-to-fifteen
minute delay before
Azure DevOps queues a run so nobody concludes the trigger is broken.
Decisions 15 and 16 record
the asset choice and confirm the MIT licence, which until now had been
copied from Bravo
rather than chosen.

The pipeline could not be validated server-side this time — the
diagnostic PAT is revoked —
so this carries only a local YAML parse. The change is inside a
PowerShell script block, not
the YAML structure.