feat(generators): wire events entry + e2e test

Add EVENTS_RULE_BLOCK constant, events entry in CORE_PACKAGE_GENERATORS
dispatch table, events choice in prompts, and printEventsNextSteps helper.
Events entry emits 15 template files + transpilePackages splice + ESLint
no-restricted-syntax splice (E1 + J blocks). Add byte-identical e2e test
that strips @repo/core-events deps before pnpm install, scaffolds via
gen core-package events, and diffs against the snapshot.

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

turbo/generators/config.test.ts

@@ -3,7 +3,7 @@ import type { PlopTypes } from "@turbo/gen";
 import generator from "./config";
 
 describe("core-package generator", () => {
-  it("is registered with realtime in choices list", () => {
+  it("is registered with realtime and events in choices list", () => {
     const captured: Array<{ name: string; def: PlopTypes.PlopGeneratorConfig }> = [];
     const plopMock = {
       setHelper: () => {},
@@ -16,6 +16,7 @@ describe("core-package generator", () => {
     const prompts = corePkg!.def.prompts as Array<{ name: string; choices: unknown[] }>;
     expect(prompts[0]!.name).toBe("name");
     expect(prompts[0]!.choices).toContain("realtime");
+    expect(prompts[0]!.choices).toContain("events");
   });
 });
 
@@ -36,3 +37,20 @@ describe("core-package realtime", () => {
     expect(actions.length).toBeGreaterThan(20); // 28 files + extras
   });
 });
+
+describe("core-package events", () => {
+  it("emits actions covering package files, transpilePackages, and ESLint rule splice", () => {
+    const captured: Array<{ name: string; def: PlopTypes.PlopGeneratorConfig }> = [];
+    const plop = {
+      setHelper: () => {},
+      setGenerator: (n: string, d: unknown) => captured.push({ name: n, def: d as PlopTypes.PlopGeneratorConfig }),
+    } as unknown as PlopTypes.NodePlopAPI;
+    generator(plop);
+    const corePkg = captured.find((c) => c.name === "core-package")!.def;
+    const actions = (corePkg.actions as (a: { name: string }) => PlopTypes.ActionType[])(
+      { name: "events" },
+    );
+    // 1 guard + 15 template files + transpilePackages + ESLint splice + printNextSteps = 19
+    expect(actions.length).toBeGreaterThanOrEqual(18);
+  });
+});