feat: add module-a example

  - Add Spring Boot application example
  - Configure module-specific dependencies
  - Include sample test

Author: kangeunchan

module-a/BUILD.bazel

@@ -0,0 +1,28 @@
+load("@rules_kotlin//kotlin:jvm.bzl", "kt_jvm_binary", "kt_jvm_test")
+load("//:kotlin.bzl", "setup_kotlin_compiler", "setup_spring_allopen_plugin")
+load("//module-a:deps.bzl", "MODULE_DEPS", "TEST_DEPS")
+
+package(default_visibility = ["//visibility:public"])
+
+setup_kotlin_compiler()
+setup_spring_allopen_plugin()
+
+kt_jvm_binary(
+    name = "main",
+    srcs = glob(["src/main/kotlin/**/*.kt"]),
+    main_class = "hs.kr.entrydsm.example.ExampleApplicationKt",
+    plugins = ["//:spring_allopen"],
+    deps = MODULE_DEPS,
+    javac_opts = "//:javac_options",
+    kotlinc_opts = "//:kotlinc_options",
+)
+
+kt_jvm_test(
+    name = "test",
+    srcs = glob(["src/test/kotlin/**/*.kt"]),
+    test_class = "hs.kr.entrydsm.example.ExampleApplicationTest",
+    plugins = ["//:spring_allopen"],
+    deps = MODULE_DEPS + TEST_DEPS,
+    javac_opts = "//:javac_options",
+    kotlinc_opts = "//:kotlinc_options",
+)

module-a/deps.bzl

@@ -0,0 +1,16 @@
+SPRING_DEPS = [
+    "@maven//:org_springframework_boot_spring_boot_starter_web",
+    "@maven//:org_springframework_boot_spring_boot_starter_actuator",
+]
+
+KOTLIN_DEPS = [
+    "@maven//:org_jetbrains_kotlin_kotlin_reflect",
+    "@maven//:com_fasterxml_jackson_module_jackson_module_kotlin",
+]
+
+TEST_DEPS = [
+    "@maven//:org_springframework_boot_spring_boot_starter_test",
+    "@maven//:junit_junit",
+]
+
+MODULE_DEPS = SPRING_DEPS + KOTLIN_DEPS

module-a/src/main/kotlin/hs/kr/entrydsm/ExampleApplication.kt

@@ -0,0 +1,11 @@
+package hs.kr.entrydsm.example
+
+import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.boot.runApplication
+
+@SpringBootApplication
+class ExampleApplication
+
+fun main(args: Array<String>) {
+    runApplication<ExampleApplication>(*args)
+}

module-a/src/test/kotlin/hs/kr/entrydsm/TestMain.kt

@@ -0,0 +1,12 @@
+package hs.kr.entrydsm.example
+
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Test
+
+class ExampleApplicationTest {
+    @Test
+    fun contextLoads() {
+        // Spring Boot context loading test
+        assertEquals(4, 2 + 2)
+    }
+}