M5.1：兼容键 runtimeVersion 改名 hostVersion，并限定为正整数

compose/api/compose.klib.api

@@ -247,6 +247,8 @@ final class app.tinyui/BuildManifest { // app.tinyui/BuildManifest|null[0]
         final fun <get-files>(): kotlin.collections/Map<kotlin/String, kotlin/String> // app.tinyui/BuildManifest.files.<get-files>|<get-files>(){}[0]
     final val hashes // app.tinyui/BuildManifest.hashes|{}hashes[0]
         final fun <get-hashes>(): kotlin.collections/Map<kotlin/String, kotlin/String> // app.tinyui/BuildManifest.hashes.<get-hashes>|<get-hashes>(){}[0]
+    final val hostVersion // app.tinyui/BuildManifest.hostVersion|{}hostVersion[0]
+        final fun <get-hostVersion>(): kotlin/String? // app.tinyui/BuildManifest.hostVersion.<get-hostVersion>|<get-hostVersion>(){}[0]
     final val name // app.tinyui/BuildManifest.name|{}name[0]
         final fun <get-name>(): kotlin/String // app.tinyui/BuildManifest.name.<get-name>|<get-name>(){}[0]
     final val pages // app.tinyui/BuildManifest.pages|{}pages[0]
@@ -257,8 +259,6 @@ final class app.tinyui/BuildManifest { // app.tinyui/BuildManifest|null[0]
         final fun <get-publicKey>(): kotlin/String // app.tinyui/BuildManifest.publicKey.<get-publicKey>|<get-publicKey>(){}[0]
     final val runtime // app.tinyui/BuildManifest.runtime|{}runtime[0]
         final fun <get-runtime>(): kotlin.collections/List<kotlin/String> // app.tinyui/BuildManifest.runtime.<get-runtime>|<get-runtime>(){}[0]
-    final val runtimeVersion // app.tinyui/BuildManifest.runtimeVersion|{}runtimeVersion[0]
-        final fun <get-runtimeVersion>(): kotlin/String? // app.tinyui/BuildManifest.runtimeVersion.<get-runtimeVersion>|<get-runtimeVersion>(){}[0]
     final val version // app.tinyui/BuildManifest.version|{}version[0]
         final fun <get-version>(): kotlin/String // app.tinyui/BuildManifest.version.<get-version>|<get-version>(){}[0]
 

compose/src/commonMain/kotlin/app/tinyui/BuildManifest.kt

@@ -21,7 +21,7 @@ class BuildManifest(
     val protocol: Int,
     val hashes: Map<String, String>,
     /** Present only in a manifest `tinyui bundle` wrote: the embedded package has none. */
-    val runtimeVersion: String? = null,
+    val hostVersion: String? = null,
 ) {
     fun buildId(module: String): String = buildIds[module] ?: ""
 
@@ -51,7 +51,7 @@ class BuildManifest(
                 engine = string("engine"),
                 protocol = root["protocol"]?.jsonPrimitive?.intOrNull ?: 0,
                 hashes = strings("hashes"),
-                runtimeVersion = root["runtimeVersion"]?.jsonPrimitive?.contentOrNull,
+                hostVersion = root["hostVersion"]?.jsonPrimitive?.contentOrNull,
             )
         }
     }

compose/src/commonTest/kotlin/app/tinyui/BundleTest.kt

@@ -51,7 +51,7 @@ class BundleTest {
         assertEquals("shop", bundle.name)
         assertEquals("20260922T090000Z-3f2a1c", bundle.manifest.version)
         assertEquals(1, bundle.manifest.protocol)
-        assertNull(bundle.manifest.runtimeVersion, "an embedded manifest has no runtimeVersion")
+        assertNull(bundle.manifest.hostVersion, "an embedded manifest has no hostVersion")
         val page = bundle.page("shop/home")
         assertEquals("shop/home", page.module.name)
         assertEquals("HOME", page.module.bytecode.decodeToString())
@@ -93,12 +93,12 @@ class BundleTest {
     @Test
     fun manifestWithoutPackageIdentityIsRejected() {
         assertFailsWith<IllegalArgumentException> { BuildManifest.parse("""{"runtime":[],"pages":[],"files":{},"buildIds":{}}""") }
-        val bundled = BuildManifest.parse(manifest.removeSuffix("}") + ""","runtimeVersion":"1"}""")
-        assertEquals("1", bundled.runtimeVersion)
+        val bundled = BuildManifest.parse(manifest.removeSuffix("}") + ""","hostVersion":"1"}""")
+        assertEquals("1", bundled.hostVersion)
         assertFailsWith<IllegalArgumentException>("a JSON null is not an identity") {
             BuildManifest.parse("""{"runtime":[],"pages":[],"files":{},"buildIds":{},"name":null,"publicKey":null}""")
         }
-        val nulls = BuildManifest.parse(manifest.removeSuffix("}") + ""","runtimeVersion":null}""")
-        assertNull(nulls.runtimeVersion)
+        val nulls = BuildManifest.parse(manifest.removeSuffix("}") + ""","hostVersion":null}""")
+        assertNull(nulls.hostVersion)
     }
 }

docs/README.md

@@ -44,7 +44,7 @@ JS                                   桥                          Kotlin
 | [ADR-003](./adr-003-kotlin-node-tree-and-registry.md) | Kotlin 侧节点表与组件注册 | 已定（2026-09-15） | 节点即重组单元；JS 线程直接写快照状态、主线程只重组；App 级注册表 + 清单下发；prop / event schema 写入时转换 |
 | [ADR-004](./adr-004-events-and-input-ownership.md) | 事件与输入状态归属 | 已定（2026-09-15） | 事件三分（离散 / 流式输入 / 连续），60 fps 状态留 Kotlin；新增 `x` 命令 op（ref + cmd）；文本框 initial prop + 命令 + 事件，不受控回写 |
 | [ADR-005](./adr-005-engine.md) | JS 引擎选型 | 已定（2026-09-15） | MicroQuickJS → QuickJS（ES2025，经 quickjs-kmp）；原生 ESM 必选；不降级 ES5；热下发不在本期（2026-09-18 起见 ADR-006） |
-| [ADR-006](./adr-006-hot-updates.md) | 热下发 | 已定（2026-09-18，2026-09-19 补服务端与签名、改多包模型） | App 由 N≥1 个包组成，包名进模块名与 URL，各包独立发布回退；整包原子、下次启动生效；宿主 `runtimeVersion` 为兼容键；内置包是地板，下发页失败即回退并拉黑；`tinyui-updates` 独立 artifact 不做网络 / 调度 / UI；投递两次 GET、发布 PUT；manifest 签名 ECDSA P-256，密钥按包、公钥随包进 manifest；服务端 `tinyui-updates-server` 独立开源仓、CF 为主可私有化，托管 `updates.tinyui.app`；契约见 [updates.md](./updates.md)，实施计划见 [updates-plan.md](./updates-plan.md) |
+| [ADR-006](./adr-006-hot-updates.md) | 热下发 | 已定（2026-09-18，2026-09-19 补服务端与签名、改多包模型） | App 由 N≥1 个包组成，包名进模块名与 URL，各包独立发布回退；整包原子、下次启动生效；宿主 `hostVersion` 为兼容键；内置包是地板，下发页失败即回退并拉黑；`tinyui-updates` 独立 artifact 不做网络 / 调度 / UI；投递两次 GET、发布 PUT；manifest 签名 ECDSA P-256，密钥按包、公钥随包进 manifest；服务端 `tinyui-updates-server` 独立开源仓、CF 为主可私有化，托管 `updates.tinyui.app`；契约见 [updates.md](./updates.md)，实施计划见 [updates-plan.md](./updates-plan.md) |
 
 ## 命名