release: 0.2.0 — auto-wire router navigation instrumentation into pro…

…videAllStak

provideAllStak now folds in navigation instrumentation by default (opt out
with { router: false }); provideAllStakRouterInstrumentation stays exported
and idempotent. Adds ProvideAllStakOptions and coverage for the fold-in.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

@allstak/angular 0.1.0