core: restore compilation and tests (ports, DTOs, repo fixes, metrics)

src/main/kotlin/com/project/movienight/adapters/web/RecommendationController.kt

@@ -0,0 +1,34 @@
+package com.project.movienight.adapters.web
+
+import com.project.movienight.application.ports.input.GetRecommendationsUseCase
+import com.project.movienight.application.ports.input.RecommendationQuery
+import com.project.movienight.domain.model.ContentType
+import com.project.movienight.domain.model.RecommendationResult
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.PathVariable
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RequestParam
+import org.springframework.web.bind.annotation.RestController
+import java.util.UUID
+
+@RestController
+@RequestMapping("/api/users/{userId}/recommendations")
+class RecommendationController(
+    private val getRecommendationsUseCase: GetRecommendationsUseCase,
+) {
+    @GetMapping
+    fun recommend(
+        @PathVariable userId: UUID,
+        @RequestParam(required = false) contentType: String?,
+        @RequestParam(required = false) mood: String?,
+        @RequestParam(required = false, defaultValue = "10") limit: Int,
+    ): List<RecommendationResult> =
+        getRecommendationsUseCase.recommend(
+            RecommendationQuery(
+                userId = userId,
+                contentType = contentType?.let { runCatching { ContentType.valueOf(it) }.getOrNull() },
+                mood = mood,
+                limit = limit,
+            ),
+        )
+}