fix(discord): use user target for DM inbound context

CHANGELOG.md

@@ -30,6 +30,7 @@ Docs: https://docs.openclaw.ai
 - Plugins/CLI: redact authenticated git URLs from git install command failure details, so failed clone or checkout output cannot leak credentials during plugin installs. Thanks @vincentkoc.
 - Channels/status reactions: remove stale non-terminal lifecycle reactions when a run reaches done or error, so Discord does not leave a permanent thinking emoji after completion. Fixes #75458. Thanks @davelutztx.
 - Discord/doctor: migrate unsupported per-channel `agentId` entries under guild channel config into top-level `bindings[]` routes, so `openclaw doctor --fix` preserves the intended agent route instead of stripping it as an unknown key. Fixes #62455. Thanks @lobster-biscuit.
+- Discord/DMs: set inbound direct-message `ctx.To` to the semantic `user:<id>` target while keeping delivery routed through the DM channel, so mirror and recovery paths do not treat DMs as channel conversations. Fixes #68126. Thanks @illuminate0623.
 - Gateway/config: log config health-state write failures instead of silently hiding config observe-recovery write errors. Thanks @sallyom.
 - Diagnostics: reset stuck-session timers on reply, tool, status, block, and ACP progress events, and back off repeated `session.stuck` diagnostics while a session remains unchanged. Supersedes #72010. Thanks @rubencu.
 

extensions/discord/src/monitor/message-handler.context.ts

@@ -274,17 +274,17 @@ export async function buildDiscordMessageProcessContext(params: {
   const effectiveFrom = isDirectMessage
     ? `discord:${author.id}`
     : (autoThreadContext?.From ?? `discord:channel:${messageChannelId}`);
-  const effectiveTo = autoThreadContext?.To ?? replyTarget;
-  if (!effectiveTo) {
-    runtime.error?.(danger("discord: missing reply target"));
-    return null;
-  }
   const dmConversationTarget = isDirectMessage
     ? resolveDiscordConversationIdentity({
         isDirectMessage,
         userId: author.id,
       })
     : undefined;
+  const effectiveTo = autoThreadContext?.To ?? dmConversationTarget ?? replyTarget;
+  if (!effectiveTo) {
+    runtime.error?.(danger("discord: missing reply target"));
+    return null;
+  }
   const lastRouteTo = dmConversationTarget ?? effectiveTo;
   const inboundHistory =
     shouldIncludeChannelHistory && historyLimit > 0

extensions/discord/src/monitor/message-handler.process.test.ts

@@ -353,12 +353,16 @@ function getLastRouteUpdate():
 function getLastDispatchCtx():
   | {
       BodyForAgent?: string;
+      ChatType?: string;
       CommandBody?: string;
+      From?: string;
       MediaTranscribedIndexes?: number[];
       MessageThreadId?: string | number;
       ModelParentSessionKey?: string;
+      OriginatingTo?: string;
       ParentSessionKey?: string;
       SessionKey?: string;
+      To?: string;
       Transcript?: string;
     }
   | undefined {
@@ -367,12 +371,16 @@ function getLastDispatchCtx():
     | {
         ctx?: {
           BodyForAgent?: string;
+          ChatType?: string;
           CommandBody?: string;
+          From?: string;
           MediaTranscribedIndexes?: number[];
           MessageThreadId?: string | number;
           ModelParentSessionKey?: string;
+          OriginatingTo?: string;
           ParentSessionKey?: string;
           SessionKey?: string;
+          To?: string;
           Transcript?: string;
         };
       }
@@ -808,6 +816,13 @@ describe("processDiscordMessage session routing", () => {
       to: "user:U1",
       accountId: "default",
     });
+    expect(getLastDispatchCtx()).toMatchObject({
+      ChatType: "direct",
+      From: "discord:U1",
+      To: "user:U1",
+      OriginatingTo: "user:U1",
+      SessionKey: "agent:main:discord:direct:u1",
+    });
   });
 
   it("pins Discord text DM main-route updates to the single configured DM owner", async () => {