Delete @deepseek-ai/dsh-sdk-python-runtime and its packaged-bin entry now that Python uses the repository's dsh application launcher. Remove the package's project reference, Knip entry, workspace-policy exception, executable allowlist entry, and README-model classification together so no tooling preserves the old exception.
This commit is deliberately mechanical: it removes the obsolete package and gate accommodations without introducing the replacement launch behavior. The following commits add the packaged dsh runtime and Python profile API, keeping the architecture change separate from deletion noise.
Update workspace manifests, the lockfile, Host project references, Knip inputs, package constraints, vendoring rewrites, and Python runtime build/smoke scripts for sdk-app, acp-app, and @deepseek-ai/dsh-sdk-python-runtime. Add the ACP hook packages to the dsh dependency closure so installed profile materialization resolves the same plugins as source workspaces.
Keep Python distribution outputs deliberately unchanged: the wheel modules, executable names, and smoke targets retain their public identities even though their private npm carrier moved. Constraint fixtures pin the new package locations and catch missing application dependencies on every platform.
