fix(test): restore valid Minecraft launch coordinator fixtures

Author: WieszczY85

docs/WORKLOG.md

@@ -8,6 +8,34 @@ Every code/build/documentation/CI task must add an entry according to `AGENTS.md
 
 ---
 
+## 2026-10-18 — Repair malformed launch integration test source
+
+**Milestone:** v0.1 — Minimal Vanilla Launcher  
+**Author/Agent:** ChatGPT  
+**Status:** Partial
+
+### Completed
+- Analyzed GitHub Actions run `39123801750`: production launcher-core and launcher-desktop code compiled, but integration test source was corrupted by a string replacement.
+- Recreated `MinecraftLaunchCoordinatorTest.kt` from the last known intact revision, retaining actual Kotlin literal placeholder escaping via `\$` characters.
+- Removed the malformed duplicated source fragments rather than attempting incremental repairs.
+
+### Changed files
+- `launcher-core/src/test/kotlin/.../launch/MinecraftLaunchCoordinatorTest.kt` — restore tests and valid literal Minecraft arguments.
+- `docs/WORKLOG.md` — this entry.
+
+### Verification
+- Previous Actions run: production core and desktop Kotlin compiled; test source compilation failed due malformed placeholder string.
+- Tests/build: awaiting full CI rerun with corrected source.
+- Live Minecraft: NOT RUN.
+
+### Roadmap updates
+- CI remains IN PROGRESS pending test and packaging pass.
+
+### Follow-ups / known issues
+- Inspect JUnit results after source is compiled.
+- Verify platform app package jobs.
+- Verify official Gradle wrapper bootstrapped by workflow.
+
 ## 2026-10-18 — Fix desktop Ktor dependency and launch test interpolation; bootstrap wrapper
 
 **Milestone:** v0.1 — Minimal Vanilla Launcher  

launcher-core/src/test/kotlin/pl/syntaxdevteam/syntaxlauncher/core/launch/MinecraftLaunchCoordinatorTest.kt

@@ -124,78 +124,8 @@ class MinecraftLaunchCoordinatorTest {
         ),
         libraries = emptyList(),
         arguments = MinecraftArguments(
-            jvm = listOf(MinecraftArgument(listOf("-cp", "${'"))),
-            game = listOf(MinecraftArgument(listOf("--username", "${'"))),
-        ),
-        javaRequirement = JavaRuntimeRequirement("java-runtime-delta", 21),
-        logging = null,
-    )
-
-    private fun makeLayout(root: Path) = MinecraftInstallationLayout(
-        gameDir = root.resolve("game"),
-        versionsDir = root.resolve("cache/versions"),
-        librariesDir = root.resolve("cache/libraries"),
-        assetsDir = root.resolve("cache/assets"),
-        assetIndexesDir = root.resolve("cache/assets/indexes"),
-        assetObjectsDir = root.resolve("cache/assets/objects"),
-        loggingConfigsDir = root.resolve("cache/assets/log_configs"),
-        nativesDir = root.resolve("cache/natives"),
-    )
-}
-}{classpath}"))),
-            game = listOf(MinecraftArgument(listOf("--username", "${auth_player_name}"))),
-        ),
-        javaRequirement = JavaRuntimeRequirement("java-runtime-delta", 21),
-        logging = null,
-    )
-
-    private fun makeLayout(root: Path) = MinecraftInstallationLayout(
-        gameDir = root.resolve("game"),
-        versionsDir = root.resolve("cache/versions"),
-        librariesDir = root.resolve("cache/libraries"),
-        assetsDir = root.resolve("cache/assets"),
-        assetIndexesDir = root.resolve("cache/assets/indexes"),
-        assetObjectsDir = root.resolve("cache/assets/objects"),
-        loggingConfigsDir = root.resolve("cache/assets/log_configs"),
-        nativesDir = root.resolve("cache/natives"),
-    )
-}
-}{auth_player_name}"))),
-        ),
-        javaRequirement = JavaRuntimeRequirement("java-runtime-delta", 21),
-        logging = null,
-    )
-
-    private fun makeLayout(root: Path) = MinecraftInstallationLayout(
-        gameDir = root.resolve("game"),
-        versionsDir = root.resolve("cache/versions"),
-        librariesDir = root.resolve("cache/libraries"),
-        assetsDir = root.resolve("cache/assets"),
-        assetIndexesDir = root.resolve("cache/assets/indexes"),
-        assetObjectsDir = root.resolve("cache/assets/objects"),
-        loggingConfigsDir = root.resolve("cache/assets/log_configs"),
-        nativesDir = root.resolve("cache/natives"),
-    )
-}
-}{classpath}"))),
-            game = listOf(MinecraftArgument(listOf("--username", "${'"))),
-        ),
-        javaRequirement = JavaRuntimeRequirement("java-runtime-delta", 21),
-        logging = null,
-    )
-
-    private fun makeLayout(root: Path) = MinecraftInstallationLayout(
-        gameDir = root.resolve("game"),
-        versionsDir = root.resolve("cache/versions"),
-        librariesDir = root.resolve("cache/libraries"),
-        assetsDir = root.resolve("cache/assets"),
-        assetIndexesDir = root.resolve("cache/assets/indexes"),
-        assetObjectsDir = root.resolve("cache/assets/objects"),
-        loggingConfigsDir = root.resolve("cache/assets/log_configs"),
-        nativesDir = root.resolve("cache/natives"),
-    )
-}
-}{auth_player_name}"))),
+            jvm = listOf(MinecraftArgument(listOf("-cp", "\${classpath}"))),
+            game = listOf(MinecraftArgument(listOf("--username", "\${auth_player_name}"))),
         ),
         javaRequirement = JavaRuntimeRequirement("java-runtime-delta", 21),
         logging = null,