Initial commit: LMS microservices scaffold

- Gradle multi-module: libs/{common-http,security-jwt,markdown,test-support},
  services/{identity,academic,progress,gateway}, web (Thymeleaf+htmx)
- identity-service: JWT auth (RSA), accounts, students, groups, enrollment,
  import from XLSX/CSV, credentials export, password reset
- academic-service: lab import from JSON/zip (markdown + YAML + variants),
  levels, API
- progress-service: schema for student levels and variant assignments
- gateway: Spring Cloud Gateway, JWT validation, route propagation
- web: Server-side UI with flex/footer layout, light/dark theme toggle,
  admin dashboard, groups CRUD, student portal placeholder
- docker-compose: PostgreSQL 18
- Tests: identity smoke test with Testcontainers

buildSrc/build.gradle.kts

@@ -0,0 +1,16 @@
+plugins {
+    // The Kotlin DSL plugin provides a convenient way to develop convention plugins.
+    `kotlin-dsl`
+}
+
+kotlin {
+    jvmToolchain(21)
+}
+
+dependencies {
+    // Plugins applied by the convention plugins in `src/main/kotlin`.
+    implementation(libs.kotlinGradlePlugin)
+    implementation(libs.kotlinAllopenPlugin)
+    implementation(libs.kotlinNoargPlugin)
+    implementation(libs.springBootGradlePlugin)
+}

buildSrc/settings.gradle.kts

@@ -0,0 +1,17 @@
+dependencyResolutionManagement {
+
+    // Use Maven Central and the Gradle Plugin Portal for resolving dependencies in the shared build logic (`buildSrc`) project.
+    @Suppress("UnstableApiUsage")
+    repositories {
+        mavenCentral()
+    }
+
+    // Reuse the version catalog from the main build.
+    versionCatalogs {
+        create("libs") {
+            from(files("../gradle/libs.versions.toml"))
+        }
+    }
+}
+
+rootProject.name = "buildSrc"

buildSrc/src/main/kotlin/lms.spring-boot.gradle.kts

@@ -0,0 +1,31 @@
+// Spring Boot application module: Kotlin/JVM + Spring/JPA plugins + Boot plugin.
+import org.gradle.api.tasks.testing.logging.TestLogEvent
+
+plugins {
+    kotlin("jvm")
+    id("org.jetbrains.kotlin.plugin.spring")
+    id("org.jetbrains.kotlin.plugin.jpa")
+    id("org.springframework.boot")
+}
+
+group = "ru.ysu.lms"
+version = "0.1.0-SNAPSHOT"
+
+kotlin {
+    jvmToolchain(21)
+    compilerOptions {
+        freeCompilerArgs.add("-Xjsr305=strict")
+    }
+}
+
+dependencies {
+    // Required by Spring for Kotlin reflection (Spring Data, @ConfigurationProperties binding).
+    "implementation"(kotlin("reflect"))
+}
+
+tasks.withType<Test>().configureEach {
+    useJUnitPlatform()
+    testLogging {
+        events(TestLogEvent.FAILED, TestLogEvent.PASSED, TestLogEvent.SKIPPED)
+    }
+}

buildSrc/src/main/kotlin/lms.spring-library.gradle.kts

@@ -0,0 +1,24 @@
+// Shared Kotlin library module: Kotlin/JVM + Spring (all-open) compiler plugin.
+import org.gradle.api.tasks.testing.logging.TestLogEvent
+
+plugins {
+    kotlin("jvm")
+    id("org.jetbrains.kotlin.plugin.spring")
+}
+
+group = "ru.ysu.lms"
+version = "0.1.0-SNAPSHOT"
+
+kotlin {
+    jvmToolchain(21)
+    compilerOptions {
+        freeCompilerArgs.add("-Xjsr305=strict")
+    }
+}
+
+tasks.withType<Test>().configureEach {
+    useJUnitPlatform()
+    testLogging {
+        events(TestLogEvent.FAILED, TestLogEvent.PASSED, TestLogEvent.SKIPPED)
+    }
+}