chore: address Phase 5 review polish (test descriptions, version conflict comment, mock cleanup)

I3: bind-production.test.ts instrumentation orthogonality tests updated to use
bindOtelInstrumentation as primary name (bindSentryInstrumentation alias still
wired in mock setup for deprecation-alias coverage, not in assertions).
I4: as never cast in init-server-node.ts annotated with explanation of the
sdk-trace-base / sdk-node TypeScript version conflict that necessitates it.
I5: SentryLogRecordProcessor removed from @sentry/opentelemetry mock in
no-instrumentation.ts — that class does not exist in v10.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/core-testing/src/setup/no-instrumentation.ts

@@ -91,11 +91,7 @@ vi.mock("@sentry/opentelemetry", () => ({
     forceFlush() { return Promise.resolve(); }
     shutdown() { return Promise.resolve(); }
   },
-  SentryLogRecordProcessor: class {
-    onEmit() {}
-    forceFlush() { return Promise.resolve(); }
-    shutdown() { return Promise.resolve(); }
-  },
+  // SentryLogRecordProcessor does NOT exist in @sentry/opentelemetry v10 — omitted.
   // No-op Sentry.init wrapper used by sentry-bridge.ts
   init: vi.fn(),
 }));