fix(FN-2316): harden pi session message normalization

packages/core/src/mission-store.test.ts

@@ -598,13 +598,11 @@ describe("MissionStore", () => {
       expect(events.events[0]).toEqual(event);
     });
 
-    it("getMissionEvents supports pagination, filtering, and newest-first ordering", async () => {
+    it("getMissionEvents supports pagination, filtering, and newest-first ordering", () => {
       const mission = store.createMission({ title: "Events mission" });
 
       const first = store.logMissionEvent(mission.id, "mission_started", "first");
-      await new Promise((resolve) => setTimeout(resolve, 5));
       const second = store.logMissionEvent(mission.id, "warning", "second warning");
-      await new Promise((resolve) => setTimeout(resolve, 5));
       const third = store.logMissionEvent(mission.id, "error", "third error");
 
       const pageOne = store.getMissionEvents(mission.id, { limit: 2, offset: 0 });

packages/core/src/mission-store.ts

@@ -937,7 +937,7 @@ export class MissionStore extends EventEmitter<MissionStoreEvents> {
       SELECT *
       FROM mission_events
       WHERE ${whereSql}
-      ORDER BY timestamp DESC, id DESC
+      ORDER BY COALESCE(seq, 0) DESC, timestamp DESC, id DESC
       LIMIT ? OFFSET ?
     `).all(...params, limit, offset) as unknown as MissionEventRow[];
 

packages/core/src/plugin-loader.ts

@@ -9,6 +9,7 @@
  * - Error isolation (plugin crashes don't crash the loader)
  */
 
+import { randomUUID } from "node:crypto";
 import { copyFile, unlink } from "node:fs/promises";
 import { isAbsolute, parse, resolve } from "node:path";
 import { pathToFileURL } from "node:url";
@@ -278,7 +279,7 @@ export class PluginLoader extends EventEmitter<{
       const parsed = parse(path);
       tempPath = resolve(
         parsed.dir,
-        `${parsed.name}.fusion-import-${process.pid}-${++this.importNonce}${parsed.ext || ".js"}`,
+        `${parsed.name}.fusion-import-${process.pid}-${++this.importNonce}-${randomUUID()}${parsed.ext || ".js"}`,
       );
       await copyFile(path, tempPath);
       importPath = tempPath;