feat: app-host → телефон-эмулятор (Jellyfin + mirror + стейт + команды)

- Config.kt: env > application.properties > дефолты (креды не в коде)
- PhoneState.kt: единый стейт — mode, currentItem, audioIndex, mirrorStatus, activeSessionId, сессии (эмуляция), downloaded
- PhoneActions.kt: catalog (с бейджами зеркал), open, watch (PlayVideo на очки), makeMirror, mirrorStatus, download/delete, sessions/selectSession, status
- Main.kt: новые консольные команды (catalog/open/watch/mirror/dl/rm/sessions/session/status)
- GlassesHub: Welcome берёт mode/sessionId из стейта, glasses_off → пауза
- JellyfinClient.item() — элемент по id (для open/watch)
- 58 тестов, 130 всего, все зелёные; живые проверки: catalog (реальный Jellyfin), watch (PlayVideo с s3-url), status (стейт обновляется)

lib-core/src/commonMain/kotlin/pw/binom/viewmate/core/media/JellyfinClient.kt

@@ -5,6 +5,7 @@ import io.ktor.client.call.body
 import io.ktor.client.request.get
 import io.ktor.client.request.header
 import io.ktor.client.request.parameter
+import io.ktor.http.HttpStatusCode
 
 /**
  * HTTP-клиент Jellyfin (каталог).
@@ -37,6 +38,17 @@ class JellyfinClient(
         recursive = false,
     )
 
+    /** Один элемент по id; null если не найден (404). */
+    suspend fun item(userId: String, itemId: String): JellyfinItem? {
+        val response = http.get("$baseUrl/Users/$userId/Items/$itemId") {
+            header("X-Emby-Token", apiKey)
+            parameter("Fields", "PrimaryImageAspectRatio,Overview")
+        }
+        if (response.status == HttpStatusCode.NotFound) return null
+        response.ensureSuccess("jellyfin.item")
+        return response.body()
+    }
+
     /** Поиск по всей библиотеке. */
     suspend fun search(userId: String, query: String): List<JellyfinItem> = requestItems(
         userId = userId,

lib-core/src/commonTest/kotlin/pw/binom/viewmate/core/media/JellyfinClientTest.kt

@@ -109,6 +109,41 @@ class JellyfinClientTest {
         assertEquals("Movie", items[0].Type)
     }
 
+    @Test
+    fun itemParsesSingleItemAndSendsToken() = runTest {
+        var capturedPath: String? = null
+        var capturedToken: String? = null
+        val jf = JellyfinClient(
+            baseUrl = "https://jellyfin.binom.pw",
+            apiKey = apiKey,
+            http = client { request ->
+                capturedPath = request.url.encodedPath
+                capturedToken = request.headers["X-Emby-Token"]
+                jsonResponse("""{"Id":"m1","Name":"Interstellar","Type":"Movie","Overview":"Описание"}""")
+            },
+        )
+
+        val item = jf.item(userId = "u1", itemId = "m1")
+
+        assertEquals("/Users/u1/Items/m1", capturedPath)
+        assertEquals(apiKey, capturedToken)
+        kotlin.test.assertNotNull(item)
+        assertEquals("m1", item.Id)
+        assertEquals("Interstellar", item.Name)
+        assertEquals("Описание", item.Overview)
+    }
+
+    @Test
+    fun itemReturnsNullOnNotFound() = runTest {
+        val jf = JellyfinClient(
+            baseUrl = "https://jellyfin.binom.pw",
+            apiKey = apiKey,
+            http = client { respond("", HttpStatusCode.NotFound) },
+        )
+
+        kotlin.test.assertNull(jf.item(userId = "u1", itemId = "missing"))
+    }
+
     @Test
     fun searchSendsSearchTerm() = runTest {
         var capturedSearchTerm: String? = null