The version kill-switch calls Anthropic's GrowthBook endpoint to
enforce a minimum version. This is currently safe for 3P users only
because isAnalyticsDisabled() returns true (disabling GrowthBook).
Adding an explicit provider guard makes this safety independent of the
analytics stub, preventing 3P users from being blocked by Anthropic's
version requirements in case of future upstream merges.
Squash the current repository state back into one baseline commit while
preserving the README reframing and repository contents.
Constraint: User explicitly requested a single squashed commit with subject "asdf"
Confidence: high
Scope-risk: broad
Reversibility: clean
Directive: This commit intentionally rewrites published history; coordinate before future force-pushes
Tested: git status clean; local history rewritten to one commit; force-pushed main to origin and instructkr
Not-tested: Fresh clone verification after push
