Adds DI binder functions for instrumentation. bindNoopInstrumentation binds NoopTracer + NoopLogger; bindSentryInstrumentation calls initSentryServer then binds SentryTracer + SentryLogger. Both are idempotent (unbind-first). Adds inversify + reflect-metadata as devDependencies so container tests compile. Re-exports from instrumentation barrel. 6 new tests (3+3). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>