feat(FN-3975): keep interview-stage missions visible in mission list

Made interview-stage missions visible in the mission list (MissionManager) and documented the behavior in the missions reference. Tests added for the new visibility logic.

Fusion-Task-Id: FN-3975

packages/dashboard/app/components/MissionManager.tsx

@@ -3546,7 +3546,7 @@ export function MissionManager({ isOpen, isInline = false, onClose, addToast, pr
     );
   });
 
-  const renderMissionListItems = () => missions.map((mission) => {
+  const renderMissionListItems = (missionList: MissionWithSummary[], options?: { interviewStyle?: boolean }) => missionList.map((mission) => {
     const m = mission;
     const isSelected = selectedMission?.id === m.id;
     const statusColors = missionStatusColors[m.status as MissionStatus] || { bg: "", text: "" };
@@ -3559,11 +3559,12 @@ export function MissionManager({ isOpen, isInline = false, onClose, addToast, pr
     const tasksFailed = health?.tasksFailed ?? 0;
     const progressPercent = health?.estimatedCompletionPercent ?? summary?.progressPercent ?? 0;
     const showSummaryBlock = hasContent || totalTasks > 0 || tasksFailed > 0 || Boolean(health?.lastActivityAt);
+    const isInterviewStyle = options?.interviewStyle === true;
 
     return (
       <div
         key={m.id}
-        className={`mission-list__item ${isSelected ? "mission-list__item--selected" : ""}`}
+        className={`mission-list__item ${isSelected ? "mission-list__item--selected" : ""} ${isInterviewStyle ? "mission-list__item--interview" : ""}`}
         onClick={() => handleSelectMission(mission)}
       >
         <div className="mission-list__item-content">
@@ -3589,10 +3590,17 @@ export function MissionManager({ isOpen, isInline = false, onClose, addToast, pr
             >
               {m.status}
             </span>
+            {isInterviewStyle && (
+              <span className="mission-status-badge mission-status-badge--sm mission-interview-status mission-interview-status--awaiting_input">
+                Interview in progress
+              </span>
+            )}
           </div>
-          {m.description && (
+          {isInterviewStyle ? (
+            <p className="mission-list__item-description">Mission interview is still in progress. Open this mission to continue planning.</p>
+          ) : m.description ? (
             <p className="mission-list__item-description">{m.description}</p>
-          )}
+          ) : null}
           {showSummaryBlock && (
             <div className="mission-list__item-summary">
               {hasContent && (
@@ -3685,6 +3693,8 @@ export function MissionManager({ isOpen, isInline = false, onClose, addToast, pr
   });
 
   const renderMissionListContent = ({ hideBottomButtons = false }: { hideBottomButtons?: boolean } = {}) => {
+    const persistedInterviewMissions = missions.filter((mission) => mission.interviewState === "in_progress");
+    const standardMissions = missions.filter((mission) => mission.interviewState !== "in_progress");
     const showMobileTopPlanButton = isMobile && missions.length > 0 && !isCreatingMission;
     const showBottomPlanButton = !hideBottomButtons && !showMobileTopPlanButton;
 
@@ -3732,7 +3742,8 @@ export function MissionManager({ isOpen, isInline = false, onClose, addToast, pr
               )}
 
               {/* Mission and interview items */}
-              {renderMissionListItems()}
+              {renderMissionListItems(persistedInterviewMissions, { interviewStyle: true })}
+              {renderMissionListItems(standardMissions)}
               {renderInterviewSessionItems()}
 
               {/* Edit mission form */}

packages/dashboard/app/components/__tests__/MissionManager.test.tsx

@@ -76,6 +76,7 @@ const mockMissions = [
     title: "Build Auth System",
     description: "Complete authentication flow",
     status: "planning",
+    interviewState: "not_started",
     milestones: [],
     createdAt: "2026-01-01T00:00:00.000Z",
     updatedAt: "2026-01-01T00:00:00.000Z",
@@ -85,6 +86,7 @@ const mockMissions = [
     title: "API Redesign",
     description: "Redesign the REST API",
     status: "active",
+    interviewState: "not_started",
     autopilotEnabled: true,
     autopilotState: "watching",
     milestones: [],
@@ -1651,6 +1653,59 @@ describe("MissionManager", () => {
     });
   });
 
+  it("keeps persisted interview-stage missions visible with interview styling and mission selection behavior", async () => {
+    const missionsWithInterview = [
+      {
+        id: "M-INTERVIEW",
+        title: "Reliability planning draft",
+        description: "Should remain visible while interview planning is in progress",
+        status: "planning",
+        interviewState: "in_progress",
+        milestones: [],
+        createdAt: "2026-01-06T00:00:00.000Z",
+        updatedAt: "2026-01-06T00:00:00.000Z",
+      },
+      ...mockMissions,
+    ];
+
+    mockFetchAiSessions.mockResolvedValueOnce([]);
+
+    globalThis.fetch = createFetchMockWithHealth(missionsWithInterview as Array<Record<string, unknown>>, {
+      ...mockMissionHealthById,
+      "M-INTERVIEW": {
+        missionId: "M-INTERVIEW",
+        status: "planning",
+        tasksCompleted: 0,
+        tasksFailed: 0,
+        tasksInFlight: 0,
+        totalTasks: 0,
+        estimatedCompletionPercent: 0,
+        autopilotState: "inactive",
+        autopilotEnabled: false,
+      },
+    });
+
+    render(<MissionManager isOpen={true} onClose={vi.fn()} addToast={vi.fn()} />);
+
+    const interviewMissionTitle = await screen.findByText("Reliability planning draft");
+    const interviewMissionRow = interviewMissionTitle.closest(".mission-list__item");
+    expect(interviewMissionRow).toBeTruthy();
+    expect(interviewMissionRow).toHaveClass("mission-list__item--interview");
+
+    expect(within(interviewMissionRow as HTMLElement).getByText("Interview in progress")).toBeInTheDocument();
+    expect(
+      within(interviewMissionRow as HTMLElement).getByText(
+        "Mission interview is still in progress. Open this mission to continue planning.",
+      ),
+    ).toBeInTheDocument();
+
+    fireEvent.click(interviewMissionTitle);
+
+    await waitFor(() => {
+      expect(screen.getByText("Database Schema")).toBeInTheDocument();
+    });
+  });
+
   it("shows in-progress interview sessions in the main mission list without footer resume duplication", async () => {
     mockFetchAiSessions.mockResolvedValueOnce([
       {