feat: economy system with minigames, bank, rob, jobs, fishing, blackjack, slots

+ economy domain (EconomyAccount, Job, SlotCombination, EconomyTransaction)
+ EconomyRepository + SqlEconomyRepository + DB schema
+ EconomyService (transfer, daily, deposit/withdraw, stat upgrades)
+ FishingService (fish grid with difficulty levels, speed bonus)
+ BlackjackService (dealer stands on 16, ties lose)
+ SlotService (weighted combos up to x50)
+ JobService (6 jobs with level reqs and efficiency stat)
+ 11 commands: balance, baltop, pay, daily, bank, rob,
  fish, blackjack, slot, job, work
+ Tests for SqlEconomyRepository
+ EconomyModule + EconomyCommandRegistrar wired into BotModule

build.gradle

@@ -1,6 +1,8 @@
 plugins {
     id 'java'
     id 'application'
+    id 'checkstyle'
+    alias(libs.plugins.spotbugs)
 }
 
 group = 'creator.loki'
@@ -11,47 +13,33 @@ repositories {
 }
 
 dependencies {
-    // JDA - Discord API
-    implementation('net.dv8tion:JDA:5.0.0-beta.20') {
+    implementation(libs.jda) {
         exclude module: 'opus-java'
     }
+    implementation libs.lavaplayer
+    implementation libs.dotenv
+    implementation libs.slf4j.api
+    implementation libs.logback.classic
+    implementation libs.gson
+    implementation libs.caffeine
+    implementation libs.guice
+    implementation libs.sqlite.jdbc
+    implementation libs.hikaricp
 
-    // LavaPlayer для голосового TTS
-    implementation 'dev.arbjerg:lavaplayer:2.2.2'
-
-    // dotenv для загрузки .env
-    implementation 'io.github.cdimascio:dotenv-java:3.0.0'
-
-    // Logging
-    implementation 'org.slf4j:slf4j-api:2.0.12'
-    implementation 'ch.qos.logback:logback-classic:1.5.3'
-
-    // JSON
-    implementation 'com.google.code.gson:gson:2.10.1'
-
-    // Caffeine Cache
-    implementation 'com.github.ben-manes.caffeine:caffeine:3.1.8'
-
-    // Google Guice - Dependency Injection
-    implementation 'com.google.inject:guice:7.0.0'
-
-    // SQLite Database
-    implementation 'org.xerial:sqlite-jdbc:3.45.1.0'
-
-    // Testing
-    testImplementation 'org.junit.jupiter:junit-jupiter:5.10.2'
-    testImplementation 'org.mockito:mockito-core:5.11.0'
-    testImplementation 'org.mockito:mockito-junit-jupiter:5.11.0'
-    testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+    testImplementation libs.junit.jupiter
+    testImplementation libs.mockito.core
+    testImplementation libs.mockito.junit.jupiter
+    testRuntimeOnly libs.junit.platform.launcher
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_17
-    targetCompatibility = JavaVersion.VERSION_17
+    sourceCompatibility = JavaVersion.VERSION_21
+    targetCompatibility = JavaVersion.VERSION_21
 }
 
 tasks.withType(JavaCompile) {
     options.encoding = 'UTF-8'
+    options.compilerArgs << '-Xlint:all'
 }
 
 test {
@@ -59,13 +47,13 @@ test {
 }
 
 application {
-    mainClass = 'creator.loki.App'
+    mainClass = 'creator.loki.bootstrap.App'
 }
 
 jar {
     manifest {
         attributes(
-            'Main-Class': 'creator.loki.App'
+            'Main-Class': 'creator.loki.bootstrap.App'
         )
     }
     duplicatesStrategy = DuplicatesStrategy.EXCLUDE
@@ -73,3 +61,14 @@ jar {
         configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) }
     }
 }
+
+checkstyle {
+    configFile = file("${rootDir}/config/checkstyle/checkstyle.xml")
+    maxErrors = 999
+    maxWarnings = 999
+}
+
+spotbugs {
+    excludeFilter = file("${rootDir}/config/spotbugs/exclude.xml")
+    ignoreFailures = true
+}