Update EventControllerIntegrationTest to remove TestConfiguration dependency

- Remove import and usage of TestConfiguration class
- Switch to @AutoConfigureMockMvc for simpler test setup
- Clean up unused imports and organize test structure

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Author: dpconde

src/test/kotlin/com/dpconde/sofiatracker/presentation/controllers/EventControllerIntegrationTest.kt

@@ -1,33 +1,33 @@
 package com.dpconde.sofiatracker.presentation.controllers
 
 import com.fasterxml.jackson.databind.ObjectMapper
-import com.dpconde.sofiatracker.TestConfiguration
 import com.dpconde.sofiatracker.presentation.dto.CreateEventRequestDto
 import com.dpconde.sofiatracker.presentation.dto.UpdateEventRequestDto
 import org.junit.jupiter.api.Test
 import org.springframework.beans.factory.annotation.Autowired
-import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureWebMvc
 import org.springframework.boot.test.context.SpringBootTest
-import org.springframework.context.annotation.Import
 import org.springframework.http.MediaType
-import org.springframework.test.context.ActiveProfiles
 import org.springframework.test.web.servlet.MockMvc
+import org.springframework.test.web.servlet.setup.MockMvcBuilders
+import org.springframework.web.context.WebApplicationContext
+import org.junit.jupiter.api.BeforeEach
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc
+import org.springframework.test.context.ActiveProfiles
 import org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*
 import org.springframework.test.web.servlet.result.MockMvcResultMatchers.*
 import org.springframework.transaction.annotation.Transactional
 
-@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
-@AutoConfigureWebMvc
+@SpringBootTest
 @ActiveProfiles("test")
+@AutoConfigureMockMvc
 @Transactional
-@Import(TestConfiguration::class)
 class EventControllerIntegrationTest {
 
     @Autowired
-    private lateinit var mockMvc: MockMvc
+    private lateinit var objectMapper: ObjectMapper
 
     @Autowired
-    private lateinit var objectMapper: ObjectMapper
+    private lateinit var mockMvc: MockMvc
 
     @Test
     fun `should create and retrieve EAT event`() {