docs: remove memory session guidance

docs/module-data-flow.html

@@ -523,7 +523,7 @@ flowchart LR
       </tr>
       <tr>
         <td>modules/core/session-core</td>
-        <td>设备会话、命令下发抽象、SessionStore、CommandDispatcher 默认实现。SessionStore 支持 <code>memory</code> 和 <code>redis</code> 两种后端；生产默认使用 Redis 保存 <code>sessionId</code>、VIN 和 phone 三索引及 TTL，内存实现作为本地开发/无 Redis 降级，协议模块只依赖 SPI，不感知存储后端。</td>
+        <td>设备会话、命令下发抽象、SessionStore、CommandDispatcher 默认实现。SessionStore 仅保留 Redis 后端；协议进程本地只保存真实 Netty Channel，Redis 保存 <code>sessionId</code>、VIN 和 phone 三索引及 TTL，协议模块只依赖 SPI，不感知存储细节。</td>
         <td>设备连接、命令请求。</td>
         <td>会话状态、命令分发结果、Redis 会话索引。</td>
         <td><span class="tag">在线状态</span><span class="tag">下行控制</span><span class="tag green">多实例会话索引</span></td>

docs/operations/gb32960-service-split-runbook.md

@@ -39,8 +39,8 @@ Authorization failures are rejected before the Kafka durability boundary and can
 
 - Java 25 and Maven available on PATH.
 - Local Kafka reachable at `127.0.0.1:9092`, plus Kafka CLI tools such as `kafka-topics` and optionally `kafka-console-consumer`.
-- Production GB32960/JT808 session state uses Redis by default. For local
+- Session state requires Redis. GB32960/JT808 ingest services keep live Netty
-  one-process smoke tests without Redis, set `SESSION_STORE=memory` explicitly.
+  channels in-process, but session indexes and TTL metadata use Redis only.
 - No repository-local Kafka bootstrap script or compose file was found during Task 8 verification on 2026-06-23.
 
 If your shell needs an explicit JDK:
@@ -94,7 +94,6 @@ GB32960 ingest:
 KAFKA_BROKERS=127.0.0.1:9092 \
 GB32960_PORT=32960 \
 HTTP_PORT=20100 \
-SESSION_STORE=memory \
 java --sun-misc-unsafe-memory-access=allow \
   -jar modules/apps/gb32960-ingest-app/target/gb32960-ingest-app.jar
 ```
@@ -105,7 +104,6 @@ JT808 ingest:
 KAFKA_BROKERS=127.0.0.1:9092 \
 JT808_PORT=808 \
 HTTP_PORT=20400 \
-SESSION_STORE=memory \
 java --sun-misc-unsafe-memory-access=allow \
   -jar modules/apps/jt808-ingest-app/target/jt808-ingest-app.jar
 ```

modules/apps/vehicle-history-app/src/test/java/com/lingniu/ingest/historyapp/MavenModuleProfileTest.java

@@ -127,6 +127,22 @@ class MavenModuleProfileTest {
                 .doesNotContain("车辆状态/日统计消费");
     }
 
+    @Test
+    void productionDocsDoNotAdvertiseMemorySessionStore() throws Exception {
+        String runbook = Files.readString(repositoryRoot()
+                .resolve("docs/operations/gb32960-service-split-runbook.md"));
+        String moduleDataFlow = Files.readString(repositoryRoot().resolve("docs/module-data-flow.html"));
+
+        assertThat(runbook)
+                .contains("Session state requires Redis")
+                .doesNotContain("SESSION_STORE=memory")
+                .doesNotContain("without Redis");
+        assertThat(moduleDataFlow)
+                .contains("SessionStore 仅保留 Redis 后端")
+                .doesNotContain("SessionStore 支持 <code>memory</code>")
+                .doesNotContain("无 Redis 降级");
+    }
+
     @Test
     void rootPomDescriptionMatchesCurrentRuntimeStack() throws Exception {
         Document pom = rootPom();