feat: implement dynamic API URL configuration with Firebase Remote Config

[Sloy]

Summary

• Add Firebase Remote Config integration for dynamic API URL management
• Implement DynamicApiUrlInterceptor for runtime URL replacement
• Add comprehensive unit tests with Mockito for interceptor functionality
• Upgrade to mockito-kotlin 5.4.0 and remove unnecessary mockito-core dependency

Technical Changes

• ApiConfigurationManager: Manages current API URL with default build-variant-specific URLs
• DynamicApiUrlInterceptor: OkHttp interceptor that replaces placeholder base URLs with configured URLs
• RemoteConfigService: Firebase Remote Config integration with real-time updates and error handling
• Comprehensive unit tests: 12 test scenarios covering URL transformation, query parameters, headers preservation, and edge cases

Test Coverage

• URL replacement with different substitute URLs (AWS API Gateway, custom domains, ports)
• Query parameter and header preservation
• Edge cases (trailing slashes, multiple path segments, non-matching URLs)
• Proper mocking with Mockito to test input/output behavior

🤖 Generated with Claude Code

[Copilot]

Pull Request Overview

Implements dynamic API URL configuration using Firebase Remote Config and an OkHttp interceptor, updates dependency versions, and augments the DI setup and tests.

• Integrate Firebase Remote Config to fetch and apply API URL at runtime
• Introduce DynamicApiUrlInterceptor and corresponding comprehensive unit tests
• Update DI modules and application class to wire in new services; bump Java/Kotlin target to 17 and add Firebase Config & Mockito-Kotlin

Reviewed Changes

Copilot reviewed 9 out of 10 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
gradle/libs.versions.toml	Added mockito, mockito-kotlin, and firebase-config entries
DynamicApiUrlInterceptorTest.kt	New tests covering URL replacement, query/fragment preservation
FakeSevibusApi.kt	Added getCardInfo and getCardTransactions methods to fake API
RemoteConfigService.kt	New service for Firebase Remote Config setup, listener, fetch
DynamicApiUrlInterceptor.kt	OkHttp interceptor to swap placeholder base URL at runtime
ApiConfigurationManager.kt	Manages current API URL with defaults and trailing‐slash logic
DI.kt	Registered config manager, interceptor, remote config service; replaced hardcoded URLs
SevApplication.kt	Initialized RemoteConfigService in onCreate
app/build.gradle.kts	Updated Java/Kotlin compatibility to 17; added dependencies

Comments suppressed due to low confidence (2)

app/src/main/java/com/sloy/sevibus/infrastructure/config/RemoteConfigService.kt:22

• Core logic in initialize() (setupConfigUpdateListener, fetchAndActivate) isn't covered by unit tests. Consider adding tests to simulate success and failure paths for fetch and update flows.

    fun initialize() {

app/src/test/java/com/sloy/sevibus/data/api/FakeSevibusApi.kt:110

• Missing imports for kotlinx.coroutines.Dispatchers and kotlinx.coroutines.withContext, causing a compilation error.

    override suspend fun getCardInfo(card: CardId): CardInfoDto = withContext(Dispatchers.IO) {

[Copilot]

[nitpick] You're mixing Mockito.mock() with Mockito-Kotlin extensions—consider using mock<Interceptor.Chain>() from org.mockito.kotlin.mock for consistency and clearer Kotlin integration.

Suggested change

	mockChain = mock()
	mockChain = mock<Interceptor.Chain>()