feat: implement full lifecycle hooks

Adds onApplicationBootstrap, beforeApplicationShutdown, and onApplicationShutdown hooks with signal support.

test/container.test.ts

@@ -373,4 +373,44 @@ describe("Alveo Container & DI", () => {
 
 		expect(service.config).toBe("async_dynamic_config");
 	});
+
+	test("should call all lifecycle hooks in the correct order", async () => {
+		const callOrder: string[] = [];
+
+		@Injectable()
+		class FullLifecycleService {
+			async onModuleInit() {
+				callOrder.push("onModuleInit");
+			}
+			async onApplicationBootstrap() {
+				callOrder.push("onApplicationBootstrap");
+			}
+			async onModuleDestroy() {
+				callOrder.push("onModuleDestroy");
+			}
+			async beforeApplicationShutdown(signal?: string) {
+				callOrder.push(`beforeApplicationShutdown:${signal}`);
+			}
+			async onApplicationShutdown(signal?: string) {
+				callOrder.push(`onApplicationShutdown:${signal}`);
+			}
+		}
+
+		@Module({
+			providers: [FullLifecycleService],
+		})
+		class RootModule {}
+
+		const app = await AlveoFactory.create(RootModule);
+		expect(callOrder).toEqual(["onModuleInit", "onApplicationBootstrap"]);
+
+		await app.close("SIGTERM");
+		expect(callOrder).toEqual([
+			"onModuleInit",
+			"onApplicationBootstrap",
+			"onModuleDestroy",
+			"beforeApplicationShutdown:SIGTERM",
+			"onApplicationShutdown:SIGTERM",
+		]);
+	});
 });