feat(core-shared): bindNoopInstrumentation + bindSentryInstrumentation

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>

packages/core-shared/src/instrumentation/di/bind-noop-instrumentation.test.ts

@@ -0,0 +1,37 @@
+// packages/core-shared/src/instrumentation/di/bind-noop-instrumentation.test.ts
+import "reflect-metadata";
+import { describe, it, expect } from "vitest";
+import { Container } from "inversify";
+import { bindNoopInstrumentation } from "@/instrumentation/di/bind-noop-instrumentation";
+import { INSTRUMENTATION_SYMBOLS } from "@/instrumentation/symbols";
+import { NoopTracer } from "@/instrumentation/noop-tracer";
+import { NoopLogger } from "@/instrumentation/noop-logger";
+import type { ITracer, ILogger } from "@/instrumentation";
+
+describe("bindNoopInstrumentation", () => {
+  it("returns a tracer + logger pair", () => {
+    const c = new Container();
+    const { tracer, logger } = bindNoopInstrumentation(c);
+    expect(tracer).toBeInstanceOf(NoopTracer);
+    expect(logger).toBeInstanceOf(NoopLogger);
+  });
+
+  it("binds TRACER and LOGGER symbols on the container", () => {
+    const c = new Container();
+    bindNoopInstrumentation(c);
+    const tracer = c.get<ITracer>(INSTRUMENTATION_SYMBOLS.TRACER);
+    const logger = c.get<ILogger>(INSTRUMENTATION_SYMBOLS.LOGGER);
+    expect(tracer).toBeInstanceOf(NoopTracer);
+    expect(logger).toBeInstanceOf(NoopLogger);
+  });
+
+  it("is idempotent — second call rebinds the same instances", () => {
+    const c = new Container();
+    const first = bindNoopInstrumentation(c);
+    const second = bindNoopInstrumentation(c);
+    // Implementations are NoopX, but instances may differ — that's fine
+    expect(c.get(INSTRUMENTATION_SYMBOLS.TRACER)).toBe(second.tracer);
+    expect(c.get(INSTRUMENTATION_SYMBOLS.LOGGER)).toBe(second.logger);
+    expect(first.tracer).toBeInstanceOf(NoopTracer);
+  });
+});

packages/core-shared/src/instrumentation/di/bind-noop-instrumentation.ts

@@ -0,0 +1,23 @@
+// packages/core-shared/src/instrumentation/di/bind-noop-instrumentation.ts
+import type { Container } from "inversify";
+import { NoopTracer } from "../noop-tracer";
+import { NoopLogger } from "../noop-logger";
+import { INSTRUMENTATION_SYMBOLS } from "../symbols";
+import type { ITracer, ILogger } from "../index";
+
+export function bindNoopInstrumentation(container: Container): {
+  tracer: ITracer;
+  logger: ILogger;
+} {
+  const tracer = new NoopTracer();
+  const logger = new NoopLogger();
+  if (container.isBound(INSTRUMENTATION_SYMBOLS.TRACER)) {
+    container.unbind(INSTRUMENTATION_SYMBOLS.TRACER);
+  }
+  if (container.isBound(INSTRUMENTATION_SYMBOLS.LOGGER)) {
+    container.unbind(INSTRUMENTATION_SYMBOLS.LOGGER);
+  }
+  container.bind<ITracer>(INSTRUMENTATION_SYMBOLS.TRACER).toConstantValue(tracer);
+  container.bind<ILogger>(INSTRUMENTATION_SYMBOLS.LOGGER).toConstantValue(logger);
+  return { tracer, logger };
+}

packages/core-shared/src/instrumentation/di/bind-sentry-instrumentation.test.ts

@@ -0,0 +1,53 @@
+// packages/core-shared/src/instrumentation/di/bind-sentry-instrumentation.test.ts
+import "reflect-metadata";
+import { describe, it, expect, vi, beforeEach } from "vitest";
+
+vi.mock("@sentry/nextjs", () => ({
+  init: vi.fn(),
+  startSpan: vi.fn((_opts: unknown, fn: (span: unknown) => unknown) =>
+    fn({ setAttribute: vi.fn(), setStatus: vi.fn() }),
+  ),
+  captureException: vi.fn(),
+  captureMessage: vi.fn(),
+  addBreadcrumb: vi.fn(),
+  setUser: vi.fn(),
+  replayIntegration: vi.fn(() => ({ name: "Replay" })),
+}));
+
+import * as Sentry from "@sentry/nextjs";
+import { Container } from "inversify";
+import { bindSentryInstrumentation } from "@/instrumentation/di/bind-sentry-instrumentation";
+import { INSTRUMENTATION_SYMBOLS } from "@/instrumentation/symbols";
+import { SentryTracer } from "@/instrumentation/sentry/sentry-tracer";
+import { SentryLogger } from "@/instrumentation/sentry/sentry-logger";
+
+describe("bindSentryInstrumentation", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("calls Sentry.init via initSentryServer", () => {
+    const c = new Container();
+    bindSentryInstrumentation(c, { dsn: "https://x@y/1", app: "web-next" });
+    expect(Sentry.init).toHaveBeenCalledTimes(1);
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    expect((Sentry.init as any).mock.calls[0][0].dsn).toBe("https://x@y/1");
+  });
+
+  it("binds SentryTracer + SentryLogger to the container", () => {
+    const c = new Container();
+    bindSentryInstrumentation(c, { dsn: "https://x@y/1", app: "web-next" });
+    expect(c.get(INSTRUMENTATION_SYMBOLS.TRACER)).toBeInstanceOf(SentryTracer);
+    expect(c.get(INSTRUMENTATION_SYMBOLS.LOGGER)).toBeInstanceOf(SentryLogger);
+  });
+
+  it("returns the tracer + logger instances", () => {
+    const c = new Container();
+    const { tracer, logger } = bindSentryInstrumentation(c, {
+      dsn: "https://x@y/1",
+      app: "web-next",
+    });
+    expect(tracer).toBeInstanceOf(SentryTracer);
+    expect(logger).toBeInstanceOf(SentryLogger);
+  });
+});

packages/core-shared/src/instrumentation/di/bind-sentry-instrumentation.ts

@@ -0,0 +1,29 @@
+// packages/core-shared/src/instrumentation/di/bind-sentry-instrumentation.ts
+import type { Container } from "inversify";
+import { SentryTracer } from "../sentry/sentry-tracer";
+import { SentryLogger } from "../sentry/sentry-logger";
+import { initSentryServer, type InitServerOpts } from "../sentry/init-server";
+import { INSTRUMENTATION_SYMBOLS } from "../symbols";
+import type { ITracer, ILogger } from "../index";
+
+export type BindSentryOpts = InitServerOpts;
+
+export function bindSentryInstrumentation(
+  container: Container,
+  opts: BindSentryOpts,
+): { tracer: ITracer; logger: ILogger } {
+  initSentryServer(opts);
+
+  const tracer = new SentryTracer();
+  const logger = new SentryLogger();
+
+  if (container.isBound(INSTRUMENTATION_SYMBOLS.TRACER)) {
+    container.unbind(INSTRUMENTATION_SYMBOLS.TRACER);
+  }
+  if (container.isBound(INSTRUMENTATION_SYMBOLS.LOGGER)) {
+    container.unbind(INSTRUMENTATION_SYMBOLS.LOGGER);
+  }
+  container.bind<ITracer>(INSTRUMENTATION_SYMBOLS.TRACER).toConstantValue(tracer);
+  container.bind<ILogger>(INSTRUMENTATION_SYMBOLS.LOGGER).toConstantValue(logger);
+  return { tracer, logger };
+}

packages/core-shared/src/instrumentation/index.ts

@@ -13,3 +13,8 @@ export { NoopTracer } from "./noop-tracer";
 export { NoopLogger } from "./noop-logger";
 export { withSpan } from "./with-span";
 export { INSTRUMENTATION_SYMBOLS } from "./symbols";
+export { bindNoopInstrumentation } from "./di/bind-noop-instrumentation";
+export {
+  bindSentryInstrumentation,
+  type BindSentryOpts,
+} from "./di/bind-sentry-instrumentation";