Phase 5: :memory-vector (JVector + SQLite + LLM-эмбеддинги), memory-abstraction, compaction, MessageContext

- :memory-api — общий контракт MemoryStore/Prefetcher/Reviewer/Tools/MemorySystem
- :memory-md (KMP, kotlinx-io) — Hermes-style §-файлы, keyword overlap
- :memory-vector (JVM-only) — JVector ANN + SQLite + HttpEmbeddingClient
- :standalone — AGENTIK_MEMORY_BACKEND={md,vector,off}, выбор в Main.kt
- :standalone — compaction рабочего контекста (LiteLlmContextCompactor + reviewPreCompaction)
- :proto — MessageContext (origin: user/system/event) на send и в Message
- :server — backward-compat dual-format для POST /messages
- README — env-vars, vector-бэкенд docs

gradle/libs.versions.toml

@@ -2,17 +2,21 @@
 kotlin = "2.4.20"
 kotlinx-serialization = "1.11.0"
 kotlinx-coroutines = "1.11.0"
+kotlinx-io = "0.8.0"
 ktor = "3.1.3"
 a2a = "1.0.0-SNAPSHOT"
 kaml = "0.104.0"
 litert = "7"
 sqldelight = "2.3.2"
+shadow = "8.3.5"
+jvector = "3.0.6"
 
 [plugins]
 kotlin-multiplatform = { id = "org.jetbrains.kotlin.multiplatform", version.ref = "kotlin" }
 kotlin-jvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
 kotlin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlin" }
 sqldelight = { id = "app.cash.sqldelight", version.ref = "sqldelight" }
+shadow = { id = "com.gradleup.shadow", version.ref = "shadow" }
 
 [libraries]
 # --- A2A (pw.binom.a2a) — shared: KMP (jvm + linuxX64); client/server: JVM-only ---
@@ -53,5 +57,13 @@ kotlin-test = { module = "org.jetbrains.kotlin:kotlin-test", version.ref = "kotl
 
 # --- commons ---
 kotlinx-coroutines-core = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-core", version.ref = "kotlinx-coroutines" }
+kotlinx-coroutines-test = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-test", version.ref = "kotlinx-coroutines" }
 kotlinx-serialization-core = { module = "org.jetbrains.kotlinx:kotlinx-serialization-core", version.ref = "kotlinx-serialization" }
 kotlinx-serialization-json = { module = "org.jetbrains.kotlinx:kotlinx-serialization-json", version.ref = "kotlinx-serialization" }
+kotlinx-io-core = { module = "org.jetbrains.kotlinx:kotlinx-io-core", version.ref = "kotlinx-io" }
+
+# --- kMMIO (dev.karmakrafts.kmmio) — резерв под будущую vector-DB, пока не используется ---
+# kmmio-core = { module = "dev.karmakrafts.kmmio:kmmio-core", version = "2.3.1" }
+
+# --- JVector (io.github.jbellis) — embedded ANN-индекс для vector-бэкенда памяти. JVM-only. ---
+jvector = { module = "io.github.jbellis:jvector", version.ref = "jvector" }