fix(sessions): send profile in destructive bodies and prune the asked window (#1398)

Co-authored-by: M57 <41645758+Hy4ri@users.noreply.github.com>

app/src/test/java/com/m57/hermescontrol/data/model/SessionDestructiveOpsSerializationTest.kt

@@ -0,0 +1,50 @@
+package com.m57.hermescontrol.data.model
+
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.jsonArray
+import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.jsonPrimitive
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Test
+
+/**
+ * Wire-shape pins for the destructive session ops. The backend reads the
+ * profile off these request BODIES (`SessionPrune` / `BulkDeleteSessions`) —
+ * the `?profile=` query rewrite never reaches them — and its prune model is
+ * `older_than_days` (the old `days` key was silently ignored, leaving the
+ * server to prune its own 90-day default).
+ */
+class SessionDestructiveOpsSerializationTest {
+    private val json = Json { ignoreUnknownKeys = true }
+
+    @Test
+    fun pruneRequest_sendsServerFieldNames() {
+        val encoded = json.encodeToString(PruneRequest(olderThanDays = 7, profile = "work"))
+        val body = json.parseToJsonElement(encoded).jsonObject
+
+        assertEquals("7", body["older_than_days"]!!.jsonPrimitive.content)
+        assertEquals("work", body["profile"]!!.jsonPrimitive.content)
+        // The old key must be gone: the backend ignores it.
+        assertFalse(body.containsKey("days"))
+    }
+
+    @Test
+    fun pruneRequest_omitsProfileWhenUnnamed() {
+        val encoded = json.encodeToString(PruneRequest(olderThanDays = 30))
+        val body = json.parseToJsonElement(encoded).jsonObject
+
+        assertEquals("30", body["older_than_days"]!!.jsonPrimitive.content)
+        assertFalse(body.containsKey("profile"))
+    }
+
+    @Test
+    fun bulkDeleteRequest_carriesProfile() {
+        val encoded = json.encodeToString(BulkDeleteRequest(ids = listOf("a", "b"), profile = "work"))
+        val body = json.parseToJsonElement(encoded).jsonObject
+
+        assertEquals("work", body["profile"]!!.jsonPrimitive.content)
+        assertEquals(listOf("a", "b"), body["ids"]!!.jsonArray.map { it.jsonPrimitive.content })
+    }
+}