test: generate the JWT test keys, drop application-dev.yml

The dev config held real keys. Local dev config now lives outside the repo; integration tests create a fresh Ed25519 keypair per run.

.env

@@ -1,2 +0,0 @@
-# .env file for local development
-DB_PASSWORD=my_super_secret_local_password

.gitignore

@@ -31,3 +31,10 @@ build/
 
 ### VS Code ###
 .vscode/
+
+### Local secrets ###
+.env
+
+### Local dev config, never committed ###
+application-dev.yml
+application-dev.yaml

readme.md

@@ -1,169 +1,113 @@
-# To Be Played (TBP) - Core Service
+# To Be Played – Core Service
 
-This is the Core Service for the "To Be Played" project. It acts as the central modulith, handling all business logic in vertical micro-service ready slices.
+Business service of **To Be Played**, a Steam backlog tracker. It syncs the user's Steam library, stores the backlog
+(status, rating, notes, priority), tracks playtime per day, syncs the wishlist and adds time-to-beat data from IGDB.
 
-## 🚀 Tech Stack
+To Be Played is split into three repositories:
 
-* **Language:** Java 25
-* **Framework:** Spring Boot 4.1.x
-* **Security:** Spring Security & JSON Web Tokens (JWT)
-* **Database:** PostgreSQL 17
-* **Migrations:** Flyway
-* **Observability:** Spring Boot Actuator & Micrometer (Prometheus)
-* **Build Tool:** Maven Wrapper (`mvnw`)
-* **CI/CD:** Gitea Actions (Forgejo)
+| Repository | Role |
+|---|---|
+| ToBePlayed-Auth | Users, login, settings, signs JWTs |
+| **ToBePlayed-Core** (this one) | Steam library, backlog, wishlist, stats; verifies JWTs |
+| ToBePlayed-Frontend | React single-page app |
 
-## 🏗️ Architecture (Clean Architecture)
+## Features
 
-The project strictly follows a Domain-Driven / Clean Architecture (Ports & Adapters) approach to ensure high maintainability and testability. The codebase is divided into three main layers to prevent framework lock-in and keep business logic isolated.
+- **Steam sync**: owned games, playtime and achievements through the Steam Web API. Manual sync plus a nightly
+  sync. Resilience4j retries and rate-limits every Steam call; Caffeine caches game counts and player summaries.
+- **Backlog**: status (`BACKLOG`, `PLAYING`, `FINISHED`, `COMPLETED` = 100 %, `DROPPED`), rating 1–5, notes, priority,
+  filters and sorting. "Pile of Shame" summary with a random suggestion of what to play.
+- **Playtime history**: one row per game and day, for the activity view and the "most played in the last two weeks"
+  dashboard banner.
+- **Wishlist**: synced from Steam with store price and discount.
+- **Time to beat**: story, extras and completionist hours from the IGDB API. Optional: without credentials the
+  feature is off and the rest works.
+- **Public profile data**: totals, status counts, games in progress and finished games with rating. Readable only
+  with a profile ticket issued by Auth. Never returns notes, priority or the Steam ID.
 
-### Layer Breakdown
+## Authentication
 
-1. **API / Web Layer (`api`)**
-    * Contains REST endpoints, DTOs (`Request`/`Response` records), and Global Exception Handlers.
-    * Uses `ApiMapper` to map between DTOs and Domain Models.
-    * **Rule:** This layer delegates to the Service layer and never accesses persistence directly.
+Core never issues tokens. It verifies Auth's EdDSA (Ed25519) JWTs with the public key only (`JWT_PUBLIC_KEY`) and
+reads `userId` and `steamId` from the claims. A token with a `typ` claim (for example a profile ticket) is rejected
+on normal endpoints; the profile ticket is accepted only by `GET /api/public/profiles/library` in the
+`X-Profile-Ticket` header.
 
-2. **Business / Core Layer (`model`, `service`, `exception`)**
-    * The heart of the application. Contains pure Java classes (Models) and Business Logic (Services).
-    * Throws specific business exceptions (e.g., `InvalidCredentialsException`).
-    * **Rule:** This layer has **no dependencies** on the API or Persistence layer. It defines interfaces that the persistence layer must implement.
+## API
 
-3. **Persistence Layer (`persistence`)**
-    * Handles database operations. Contains JPA Entities (`UserEntity`), Spring Data Repositories, and the `EntityMapper`.
-    * Implements the interfaces defined in the Domain layer.
-    * **Rule:** Entities never leak into the API layer.
+| Method | Path | Auth |
+|---|---|---|
+| `GET` | `/api/library/games`, `/api/library/games/{appid}` | JWT |
+| `PUT` | `/api/library/games/{appid}/backlog` | JWT |
+| `POST` | `/api/library/sync` | JWT |
+| `GET` | `/api/library/sync-status`, `/summary`, `/activity`, `/wishlist`, `/steam-profile`, `/games-count` | JWT |
+| `GET` | `/api/public/profiles/library` | profile ticket |
+| `GET` | `/api/stats/public` | public |
 
-Architectural boundaries are enforced via ArchUnit (`src/test/java/core_service/architecture/ArchitectureTest.java`), which runs as part of the standard `./mvnw test` quality gate. Abstract test bases live under `core_service.shared.test` (`AbstractUnitTest`, `AbstractIntegrationTest`, `AbstractPersistenceTest`, `AbstractWebMvcTest`, `AbstractArchitectureTest`).
+## Tech stack
 
-> **Core-specific structure note.** Unlike `auth-service`, Core keeps JPA `@Entity` classes in `..domain..` (rather than a separate `..persistence.entities..` package) and repository interfaces in `..repo..`. The ArchUnit rules are adapted to this layout. See "Roadmap / Open Topics" below for the planned tightening.
+- Java 25, Spring Boot 4.1 (Web MVC, Security, Data JPA, Validation, Cache with Caffeine), virtual threads
+- PostgreSQL 17, Flyway migrations
+- Resilience4j: retry and rate limiter for Steam, rate limiter for IGDB
+- JJWT with Ed25519 public key
+- Spring Boot Actuator + Micrometer (Prometheus)
+- Tests: JUnit 5, Testcontainers (PostgreSQL), ArchUnit
+- CI: Forgejo Actions, multi-stage Docker image
 
-## ⚙️ Local Development
+## Architecture
 
-Running the application locally is fully automated via Spring Boot's Docker Compose Support.
+A modular monolith. Each module under `core_service.modules` is a vertical slice that could move to its own
+service later:
 
-### Prerequisites
+| Module | Content |
+|---|---|
+| `library` | Sync, backlog, playtime history, wishlist, public profile data |
+| `stats` | Public numbers for the landing page |
+| `steam_adapter` | Steam Web API client |
+| `igdb_adapter` | IGDB client (Twitch OAuth) |
 
-* Java 25 installed
-* Docker & Docker Compose running
+Inside a module: `api` (controllers, DTOs), `service` (business logic), `domain` (JPA entities) and `repo`
+(Spring Data repositories). ArchUnit enforces cycle freedom, controller-to-repository direction, naming and module
+isolation in `src/test/java/core_service/architecture/ArchitectureTest.java`.
 
-### How to start
+## Run locally
 
-1. Simply run the application from your IDE (e.g., IntelliJ) via the `CoreServiceApplication.java` main class.
-2. Spring Boot will automatically detect the `compose.yaml` and spin up a local PostgreSQL container (`tbp_db_local`) on port `5432`.
-3. **Flyway** will automatically apply all database migrations located in `src/main/resources/db/migration`.
-4. The application will be available at `http://localhost:8090`.
-
-To stop the environment and clean the database volume (if needed):
+Needs Java 25 and Docker.
 
 ```bash
-docker compose down -v
+./mvnw spring-boot:run -Dspring-boot.run.profiles=dev
 ```
 
-## 🔐 API Versioning
+Spring Boot's Docker Compose support starts PostgreSQL from `compose.yaml`, Flyway applies the migrations, and the
+service listens on `http://localhost:8090`. Health: `/actuator/health`, metrics: `/actuator/prometheus`.
 
-All API endpoints utilize Query Parameter Versioning to keep URLs clean and manageable.
-Example: GET /api/users/me?v=1
+In the `dev` profile a request without an `Authorization` header gets a dummy user, so the API is usable without a
+running Auth service.
 
-## 🐳 CI/CD Pipeline
+Configuration comes from environment variables:
 
-The project uses Gitea Actions for Continuous Integration and Deployment.
+| Variable | Purpose |
+|---|---|
+| `JWT_PUBLIC_KEY` | Auth's Ed25519 public key, Base64 of the X.509 DER bytes |
+| `STEAM_API_KEY` | Steam Web API key |
+| `IGDB_CLIENT_ID`, `IGDB_CLIENT_SECRET` | Twitch app for IGDB (optional) |
+| `DB_PASSWORD` | Local PostgreSQL password |
 
-Quality Gate: Runs ./mvnw clean verify to ensure tests and builds pass.
+## Tests
 
-Docker Build: Packages the application using a multi-stage Dockerfile.
+```bash
+./mvnw clean verify
+```
 
-Registry: Pushes the lightweight Alpine-based image to the private Gitea container registry (git.andreas-dahm.eu/lobo_corp/tbp-core-service:latest).
+Runs unit, WebMvc, persistence and integration tests plus the ArchUnit rules. Needs Docker for Testcontainers.
 
-## 📈 Observability
+## Roadmap
 
-Metrics and health checks are exposed out-of-the-box via Spring Boot Actuator:
+- "What to play next" picker: time budget and mood on top of the current random suggestion.
+- Achievement summary per game and library-wide, "closest to 100 %".
+- Sale alerts for wishlist games.
+- Move `steam_adapter` DTOs out of `api`, then turn on strict module independence in ArchUnit.
+- Fetch the public key from a JWKS endpoint in Auth instead of an environment variable.
 
-Health: http://localhost:8090/actuator/health
+## License
 
-Prometheus Metrics: http://localhost:8090/actuator/prometheus
-
-## 🗺️ Roadmap / Open Topics
-
-Tracking known work that is not yet implemented. Each item is independently actionable.
-
-### Architecture / ArchUnit follow-ups
-
-Currently active rules cover: cycles, controller→repository direction, repository naming, controller/service annotations, shared/configuration isolation, and a relaxed slice rule. The following rules are intentionally **not** yet enforced because they would fail today; addressing them is a separate refactor.
-
-- **Strict module independence.** `library` currently imports from `steam_adapter` (e.g. `SteamApiService`, response DTOs). The ArchUnit rule exempts that edge via `ignoreDependency(library.., steam_adapter..)`. Long-term: either move `steam_adapter` out of `modules` (into `core_service.adapters.steam` or `core_service.shared.steam`) to make its role as a shared outbound port explicit, then enable strict `notDependOnEachOther()` without exemptions.
-- **"DTOs only in `..api..`" rule.** Steam adapter response records currently live in `..api.dto..` and are consumed by `library` services. Move them to `core_service.modules.steam_adapter.model` (or `.port`) so they read as domain types, not API DTOs, then re-enable the strict rule.
-- **"Entities only in `..persistence..`" rule.** Skipped because Core mixes entities with the domain package. Decide whether to (a) accept that pattern and keep the rule off, or (b) split entities into `..repo.entity..` and re-enable the rule for consistency with `auth-service`.
-
-### Security
-
-- ~~**Drop the shared `JWT_SECRET`.**~~ Done. Core now holds only `JWT_PUBLIC_KEY` and verifies with the Ed25519 public key via `Jwts.parser().verifyWith(publicKey).build()`. `JwtConfig.secret` removed.
-- ~~**Add a `JwtServiceTest`.**~~ Done. `src/test/java/core_service/configuration/security/JwtServiceTest.java` covers extract / valid / wrong-key paths with an Ed25519 fixture.
-- **Consume a JWKS endpoint** once Auth exposes one (`GET https://auth.tbp.andreas-dahm.eu/.well-known/jwks.json`). Cache keys at startup, refresh on `kid` miss. Avoids redeploying Core when keys rotate. With the `kid` header now present in issued tokens (`JWT_KID`), this is unblocked.
-
-### Testing
-
-- **First Steam adapter integration test.** `SteamApiServiceTest` is a unit test; an integration test with WireMock (or Spring's `MockRestServiceServer`) would lock in the contract with the external Steam API and the Resilience4j retry/rate-limit configuration.
-- **Persistence-layer tests.** `library/repo/*Repository` has no `AbstractPersistenceTest`-based test today. Good first targets: `UserGameRepository`, `UserSteamSyncRepository`.
-- **Controller WebMvc tests.** `LibraryController`, `PublicStatsController`, `SteamController` have no `AbstractWebMvcTest`-based tests yet. The Auth project's `*ControllerTest` classes are the pattern to follow.
-
-### CI
-
-- **Wire the ArchUnit + scaffolding into the existing Forgejo Actions quality gate.** `./mvnw verify` already runs them; confirm CI fails (not just warns) on architecture violations so drift is caught before merge.
-
-## 🎯 Product Roadmap (Core-owned slices)
-
-The full cross-service product roadmap lives in `ToBePlayed-Deployment/README.md`. This section lists only the slices that land in Core, in suggested execution order.
-
-### 1. Per-game tracking — the namesake feature
-
-Today `user_game` mirrors Steam ownership and playtime, nothing else. Closing this gap turns the library from a Steam mirror into an actual backlog tracker.
-
-- Add a `status` column on `user_game` (`BACKLOG / PLAYING / COMPLETED / DROPPED / ON_HOLD / WISHLIST`) with a Flyway migration. Default at import: playtime > 0 → `PLAYING`, otherwise `BACKLOG`.
-- Add `rating` (smallint 1–10, nullable), `completed_at` (timestamp, nullable), `notes` (text, markdown, server-side rendered or sanitised on read).
-- Endpoint: `PATCH /api/library/games/{appid}` for partial updates of these fields. Stick with query-parameter versioning (`?v=1`).
-- Endpoint: filter `GET /api/library/games?status=BACKLOG` (extend the existing pagination contract).
-- New module candidate or extend `library` — keep it in `library` until tracking grows its own queries / reports, then split.
-
-### 2. Picker / "what to play next"
-
-- Endpoint: `GET /api/library/picker?budget=<minutes>&mood=<tag>&count=3`. Pure read, uses status + (eventually) HLTB hours + tags as filters. Randomised within filter set.
-- No new persistence yet; build it on top of (1).
-
-### 3. HowLongToBeat integration
-
-- New module `core_service.modules.hltb` (or `library/hltb` if kept internal). External adapter pattern mirrors `steam_adapter`.
-- Schema: `game_completion_time(appid, main_hours, plus_sides_hours, completionist_hours, fetched_at)`.
-- Scheduled job to backfill + refresh (low cadence: monthly).
-- Risk: HLTB has no official API; community libs scrape. Cache aggressively, degrade gracefully when missing.
-
-### 4. Achievement aggregation (data already in place)
-
-- `UserGameAchievement` + `GameAchievementSchema` are already synced. Add aggregate endpoints:
-  - `GET /api/library/games/{appid}/achievements/summary` → `{ unlocked, total, percent }`.
-  - `GET /api/library/me/achievements/summary` → library-wide unlocked / total / percent.
-  - `GET /api/library/me/achievements/closest-to-completion?limit=10`.
-- Pure SQL views or projection DTOs; no new external calls.
-
-### 5. Goals and digests
-
-- Schema: `user_goal(user_id, year, target_games_completed, ...)`.
-- Endpoint: `GET/PUT /api/library/me/goal?v=1`.
-- Scheduled weekly digest job: aggregate per-user "played hours, backlog delta, status changes" for last 7 days. Push to Auth (which owns email) or to a notification queue.
-
-### 6. Wishlist + sale alerts
-
-- Extend `steam_adapter` with a wishlist endpoint.
-- New module / adapter for IsThereAnyDeal price polling.
-- Scheduled job; threshold per-user; trigger an email via Auth.
-
-### 7. Library enrichment
-
-- Genre / tag filters: Steam store tags exist in some Steam API responses — verify which calls return them and add to the cache.
-- DLC awareness: Steam's `GetAppDetails` returns DLC; persist a `game_dlc(appid_base, appid_dlc)` table and a `GET .../games/{appid}/dlc` endpoint.
-- Series / franchise grouping: needs IGDB integration (separate adapter, requires a free IGDB OAuth token).
-- **Multi-platform support**: bigger schema change. Decouple `Game` (platform-agnostic) from `SteamGame` (platform-specific). New `source` enum (`STEAM`, `GOG`, `EPIC`, `MANUAL`, ...). Defer until at least one non-Steam adapter is on the immediate horizon.
-
-### 8. ~~Public profile data~~ Done
-
-- `GET /api/public/profiles/library` with header `X-Profile-Ticket` (issued by Auth for a public profile, valid 10 minutes, see the Auth readme) returns totals, status counts, up to 8 playing and 12 finished games with rating. Never notes, priority or the Steam ID. Core keeps no copy of the privacy flag; the ticket is the proof.
+All rights reserved. The source is public for reading only.

src/main/java/core_service/configuration/security/DevJwtAuthenticationFilter.java

@@ -82,6 +82,6 @@ public class DevJwtAuthenticationFilter extends OncePerRequestFilter {
 
     private UserPrincipal dummyPrincipal() {
         log.trace("Dev mode: no JWT present, injecting dummy principal");
-        return new UserPrincipal("1", "dev@example.com", 76561198005679788L);
+        return new UserPrincipal("1", "dev@example.com", 76561198000000001L);
     }
 }

src/main/resources/application-dev.yml

@@ -1,20 +0,0 @@
-# ─────────────────────────────────────────────
-# DEVELOPMENT CONFIGURATION
-# ─────────────────────────────────────────────
-# Overrides properties from application.yml when the 'dev' profile is active
-
-app:
-  cors:
-    # Local development: allow all origins to prevent CORS issues
-    allowed-origins: "*"
-  steam:
-    api-key: "54EF220BF9A9BF849DB4E33FC4B0FDA3"
-# Optional: Make SQL logs visible for debugging
-spring:
-  jpa:
-    show-sql: true
-
-security:
-  jwt:
-    # Dev-only Ed25519 public key. Must match Auth's dev private key.
-    public-key: "MCowBQYDK2VwAyEAPSmUISg0IUO1LrRPhF8RZAT/Yjh9HEVf5hzR84AL1Zw="

src/test/java/core_service/configuration/security/PublicEndpointsTest.java

@@ -68,7 +68,7 @@ class PublicEndpointsTest {
     }
 
     @ParameterizedTest
-    @ValueSource(strings = {"/actuator/prometheus", "/api/steam/test/76561198005679788", "/internal/anything"})
+    @ValueSource(strings = {"/actuator/prometheus", "/api/steam/test/76561198000000001", "/internal/anything"})
     void endpointIsNotPublic(String path) throws Exception {
         int status = mockMvc.perform(get(path)).andReturn().getResponse().getStatus();
         assertTrue(Set.of(401, 403).contains(status), path + " answered " + status);

src/test/java/core_service/modules/library/api/LibraryControllerSteamProfileTest.java

@@ -18,7 +18,7 @@ import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
 /**
- * The dev profile authenticates every request as user 1 with Steam ID 76561198005679788.
+ * The dev profile authenticates every request as user 1 with Steam ID 76561198000000001.
  */
 @AutoConfigureMockMvc
 class LibraryControllerSteamProfileTest extends AbstractIntegrationTest {
@@ -31,8 +31,8 @@ class LibraryControllerSteamProfileTest extends AbstractIntegrationTest {
 
     @Test
     void steamProfile_SendsNameAndAvatar() throws Exception {
-        when(steamApiService.getPlayerSummary("76561198005679788")).thenReturn(Optional.of(new SteamPlayerSummaryResponse.Player(
-                "76561198005679788", "Lobo", null, "https://avatars.steamstatic.com/abc_full.jpg")));
+        when(steamApiService.getPlayerSummary("76561198000000001")).thenReturn(Optional.of(new SteamPlayerSummaryResponse.Player(
+                "76561198000000001", "Lobo", null, "https://avatars.steamstatic.com/abc_full.jpg")));
 
         mockMvc.perform(get("/api/library/steam-profile"))
                 .andExpect(status().isOk())
@@ -42,7 +42,7 @@ class LibraryControllerSteamProfileTest extends AbstractIntegrationTest {
 
     @Test
     void steamProfile_SteamDoesNotAnswer_SendsEmptyFields() throws Exception {
-        when(steamApiService.getPlayerSummary("76561198005679788")).thenReturn(Optional.empty());
+        when(steamApiService.getPlayerSummary("76561198000000001")).thenReturn(Optional.empty());
 
         mockMvc.perform(get("/api/library/steam-profile"))
                 .andExpect(status().isOk())

src/test/java/core_service/modules/library/api/PublicProfileControllerTest.java

@@ -12,14 +12,9 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.webmvc.test.autoconfigure.AutoConfigureMockMvc;
-import org.springframework.test.context.DynamicPropertyRegistry;
-import org.springframework.test.context.DynamicPropertySource;
 import org.springframework.test.web.servlet.MockMvc;
 
-import java.security.KeyPair;
-import java.security.KeyPairGenerator;
 import java.time.Instant;
-import java.util.Base64;
 import java.util.Date;
 import java.util.List;
 
@@ -29,28 +24,10 @@ import static org.springframework.test.web.servlet.request.MockMvcRequestBuilder
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
-/**
- * Signs its own tickets: the test key pair replaces the dev public key.
- */
 @AutoConfigureMockMvc
 class PublicProfileControllerTest extends AbstractIntegrationTest {
 
     private static final long USER_ID = 7L;
-    private static final KeyPair KEYS = generateKeys();
-
-    private static KeyPair generateKeys() {
-        try {
-            return KeyPairGenerator.getInstance("Ed25519").generateKeyPair();
-        } catch (Exception e) {
-            throw new IllegalStateException(e);
-        }
-    }
-
-    @DynamicPropertySource
-    static void properties(DynamicPropertyRegistry registry) {
-        registry.add("security.jwt.public-key", () -> Base64.getEncoder().encodeToString(KEYS.getPublic().getEncoded()));
-    }
-
     @Autowired
     private MockMvc mockMvc;
 
@@ -62,7 +39,7 @@ class PublicProfileControllerTest extends AbstractIntegrationTest {
 
     private static String ticket(long userId) {
         return Jwts.builder().subject("public-profile").claim("typ", "public-profile").claim("profileUserId", String.valueOf(userId))
-                .expiration(new Date(System.currentTimeMillis() + 60_000)).signWith(KEYS.getPrivate(), Jwts.SIG.EdDSA).compact();
+                .expiration(new Date(System.currentTimeMillis() + 60_000)).signWith(TEST_KEYS.getPrivate(), Jwts.SIG.EdDSA).compact();
     }
 
     private UserGame game(long appid, int playtime, GameStatus status, Integer rating) {

src/test/java/core_service/modules/library/service/LibrarySyncServiceTest.java

@@ -26,7 +26,7 @@ import static org.mockito.Mockito.when;
 class LibrarySyncServiceTest extends AbstractUnitTest {
 
     private static final long USER_ID = 1L;
-    private static final String STEAM_ID = "76561198005679788";
+    private static final String STEAM_ID = "76561198000000001";
 
     @Mock
     private UserSteamSyncRepository userSteamSyncRepository;
@@ -109,12 +109,12 @@ class LibrarySyncServiceTest extends AbstractUnitTest {
     @Test
     void syncAllNightly_SyncsRecentlyUsedAccountsOneAfterTheOther() {
         when(userSteamSyncRepository.findByUserSeenAtAfter(any())).thenReturn(List.of(
-                new UserSteamSync(1L, "76561198005679788"),
+                new UserSteamSync(1L, "76561198000000001"),
                 new UserSteamSync(2L, "76561198005679790")));
 
         syncService.syncAllNightly();
 
-        verify(worker).runSyncNow(1L, "76561198005679788");
+        verify(worker).runSyncNow(1L, "76561198000000001");
         verify(worker).runSyncNow(2L, "76561198005679790");
         verify(worker, never()).runSync(anyLong(), anyString());
     }

src/test/java/core_service/modules/library/service/LibrarySyncWorkerTest.java

@@ -44,7 +44,7 @@ import static org.mockito.Mockito.when;
 class LibrarySyncWorkerTest extends AbstractUnitTest {
 
     private static final long USER_ID = 1L;
-    private static final String STEAM_ID = "76561198005679788";
+    private static final String STEAM_ID = "76561198000000001";
     private static final String OTHER_STEAM_ID = "76561198005679790";
 
     private static SteamOwnedGamesResponse.Game game(int playtime, int playtime2Weeks) {

src/test/java/core_service/modules/library/service/SteamProfileServiceTest.java

@@ -28,10 +28,10 @@ class SteamProfileServiceTest extends AbstractUnitTest {
 
     @Test
     void getProfile_TakesNameAndAvatarFromSteam() {
-        when(steamApiService.getPlayerSummary("76561198005679788")).thenReturn(Optional.of(
-                new SteamPlayerSummaryResponse.Player("76561198005679788", "Lobo", "https://steamcommunity.com/id/lobo", AVATAR)));
+        when(steamApiService.getPlayerSummary("76561198000000001")).thenReturn(Optional.of(
+                new SteamPlayerSummaryResponse.Player("76561198000000001", "Lobo", "https://steamcommunity.com/id/lobo", AVATAR)));
 
-        assertEquals(new SteamProfileDto("Lobo", AVATAR), service.getProfile(76561198005679788L));
+        assertEquals(new SteamProfileDto("Lobo", AVATAR), service.getProfile(76561198000000001L));
     }
 
     @Test

src/test/java/core_service/modules/steam_adapter/service/SteamApiServiceCacheTest.java

@@ -26,7 +26,7 @@ import static org.mockito.Mockito.when;
  */
 class SteamApiServiceCacheTest extends AbstractIntegrationTest {
 
-    private static final String STEAM_ID = "76561198005679788";
+    private static final String STEAM_ID = "76561198000000001";
 
     @MockitoBean(name = "steamRestClient", answers = Answers.RETURNS_DEEP_STUBS)
     private RestClient steamRestClient;

src/test/java/core_service/shared/test/AbstractIntegrationTest.java

@@ -4,14 +4,21 @@ import org.junit.jupiter.api.Tag;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.testcontainers.service.connection.ServiceConnection;
 import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.DynamicPropertyRegistry;
+import org.springframework.test.context.DynamicPropertySource;
 import org.testcontainers.containers.PostgreSQLContainer;
 
+import java.security.KeyPair;
+import java.security.KeyPairGenerator;
+import java.security.NoSuchAlgorithmException;
+import java.util.Base64;
+
 /**
  * Base class for integration tests.
  * Full Spring context with Testcontainers.
  */
 @Tag("IntegrationTest")
-// The nightly sync would call Steam with the dev key if a test ran at 23:55.
+// The nightly sync would call Steam if a test ran at 23:55.
 @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT, properties = "app.library.nightly-sync-cron=-")
 @ActiveProfiles("dev")
 public abstract class AbstractIntegrationTest {
@@ -24,4 +31,21 @@ public abstract class AbstractIntegrationTest {
     static {
         postgres.start();
     }
+
+    // No key is committed: a fresh one per JVM. Tests that sign tokens use TEST_KEYS.getPrivate().
+    protected static final KeyPair TEST_KEYS = generateKeys();
+
+    @DynamicPropertySource
+    static void secrets(DynamicPropertyRegistry registry) {
+        registry.add("security.jwt.public-key", () -> Base64.getEncoder().encodeToString(TEST_KEYS.getPublic().getEncoded()));
+        registry.add("app.steam.api-key", () -> "test-key");
+    }
+
+    private static KeyPair generateKeys() {
+        try {
+            return KeyPairGenerator.getInstance("Ed25519").generateKeyPair();
+        } catch (NoSuchAlgorithmException e) {
+            throw new IllegalStateException(e);
+        }
+    }
 }