feat(frontend): expose owned session scopes

.superpowers/sdd/task-6-report.md

@@ -0,0 +1,51 @@
+# Task 6 — Frontend identity and administrator UX report
+
+## RED
+
+- Added API tests for the `/me` principal call and `mine`/`all` session-list scopes.
+- Added component tests for regular-user scope, admin scope switching, owner labels,
+  administrator banner, foreign-owner delete confirmation, and foreign-owner archive
+  confirmation.
+- Initial focused run: 7 expected failures (missing `getMe`, missing scope query,
+  missing owner label/admin controls, and missing foreign-action confirmation).
+- The archive-confirmation regression was also run separately before its implementation
+  and failed because `window.confirm` was not called.
+
+## GREEN
+
+- `npx vitest run src/api/sessions.test.ts src/shell/NavSessions.test.tsx src/shell/AppShell.session-mgmt.test.tsx`
+  — passed (47 tests before the archive follow-up; the focused archive regression then passed).
+- `npm test` — passed: 44 files / 305 tests.
+- `npx tsc -b` — passed.
+- `npm run build` — passed.
+- `git diff --check` — passed.
+- `npm run e2e` reached Playwright but could not run: the environment has no Chromium
+  executable at Playwright's configured cache path. No application test failure was reported.
+
+## Files changed
+
+- `frontend/src/api/types.ts`: typed principal and session scope contracts.
+- `frontend/src/api/sessions.ts`: typed `/me` API call; scoped listing defaults to `mine`.
+- `frontend/src/shell/AppShell.tsx`: identity query, admin-only session scope selector and
+  banner, owner-aware destructive action confirmations.
+- `frontend/src/shell/NavSessions.tsx`: owner labels in the all-sessions view.
+- `frontend/src/api/sessions.test.ts`, `frontend/src/shell/NavSessions.test.tsx`, and
+  `frontend/src/shell/AppShell.session-mgmt.test.tsx`: contract and UX coverage.
+
+## Self-review
+
+- Regular users remain fail-closed on `mine`; no administrator control renders without
+  `principal.isAdmin`.
+- The all-sessions view includes owner labels (including `Unknown` for legacy records).
+- Delete confirmation preserves the pre-existing select-all behavior and adds confirmation
+  for foreign/unknown owners. Foreign archive now also requires an explicit browser
+  confirmation; existing Stop & save already has its confirmation dialog.
+- A read-only review found no critical, important, or minor issues. The archive guard was
+  added after that review in response to the requirement to cover every destructive rail
+  action, and has its own RED/GREEN regression plus the final full verification above.
+
+## Concerns
+
+- E2E remains environment-blocked until the Playwright Chromium browser is installed.
+- Existing Vitest runs emit pre-existing MSW unmatched-request and dialog-ref warnings; all
+  assertions pass and this task does not modify those shared test/UI primitives.

frontend/src/api/sessions.test.ts

@@ -1,6 +1,6 @@
 import { http, HttpResponse } from "msw";
 import { server } from "../test/msw";
-import { createSession, listSessions, prewarmRuntime, resumeSession } from "./sessions";
+import { createSession, getMe, listSessions, prewarmRuntime, resumeSession } from "./sessions";
 import {
   renameSession, setSessionGroup, archiveSession, unarchiveSession,
   deleteSession, getSessionDocuments,
@@ -30,10 +30,34 @@ test.each([202, 204])("prewarmRuntime accepts a body-less %s response", async (s
   expect(called).toBe(true);
 });
 
-test("listSessions GETs the array", async () => {
+test("listSessions defaults to the current user's scope", async () => {
-  server.use(http.get("http://localhost:8787/sessions", () => HttpResponse.json([{ id: "s1", status: "open", question: "q", summary: null, created_at: "t", updated_at: null, author: null }])));
+  let scope: string | null = null;
+  server.use(http.get("http://localhost:8787/sessions", ({ request }) => {
+    scope = new URL(request.url).searchParams.get("scope");
+    return HttpResponse.json([{ id: "s1", status: "open", question: "q", summary: null, created_at: "t", updated_at: null, author: null }]);
+  }));
   const rows = await listSessions();
   expect(rows[0].id).toBe("s1");
+  expect(scope).toBe("mine");
+});
+
+test("listSessions requests the selected administrator scope", async () => {
+  let scope: string | null = null;
+  server.use(http.get("http://localhost:8787/sessions", ({ request }) => {
+    scope = new URL(request.url).searchParams.get("scope");
+    return HttpResponse.json([]);
+  }));
+  await listSessions("all");
+  expect(scope).toBe("all");
+});
+
+test("getMe fetches the typed authenticated principal", async () => {
+  server.use(http.get("http://localhost:8787/me", () =>
+    HttpResponse.json({ issuer: "portal", subject: "42", displayName: "Alice", isAdmin: true }),
+  ));
+  await expect(getMe()).resolves.toEqual({
+    issuer: "portal", subject: "42", displayName: "Alice", isAdmin: true,
+  });
 });
 
 test("resumeSession returns the typed runtime disposition", async () => {

frontend/src/api/sessions.ts

@@ -1,5 +1,7 @@
 import { apiFetch } from "./client";
-import type { ResumeSessionResult, SessionSummary, SessionDocument, UiResponse } from "./types";
+import type {
+  Principal, ResumeSessionResult, SessionScope, SessionSummary, SessionDocument, UiResponse,
+} from "./types";
 
 export const createSession = (i: { question: string; name?: string }) =>
   apiFetch<{ id: string }>("/sessions", { method: "POST", body: JSON.stringify(i) });
@@ -8,7 +10,10 @@ export const createSession = (i: { question: string; name?: string }) =>
 export const prewarmRuntime = () =>
   apiFetch<void>("/runtime/prewarm", { method: "POST" });
 
-export const listSessions = () => apiFetch<SessionSummary[]>("/sessions");
+export const getMe = () => apiFetch<Principal>("/me");
+
+export const listSessions = (scope: SessionScope = "mine") =>
+  apiFetch<SessionSummary[]>(`/sessions?scope=${scope}`);
 
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 export const getSession = (id: string) => apiFetch<any>(`/sessions/${id}`);

frontend/src/api/types.ts

@@ -104,6 +104,15 @@ export interface SessionSummary {
   archived: boolean;
 }
 
+export type SessionScope = "mine" | "all";
+
+export interface Principal {
+  issuer: string;
+  subject: string;
+  displayName?: string;
+  isAdmin: boolean;
+}
+
 export interface ResumeSessionResult {
   id: string;
   alreadyActive: boolean;

frontend/src/shell/AppShell.session-mgmt.test.tsx

@@ -54,6 +54,9 @@ beforeEach(() => {
   window.matchMedia = vi.fn().mockReturnValue({ matches: true, addEventListener: vi.fn(), removeEventListener: vi.fn() });
   useSessionStore.getState().resetSession();
   server.use(
+    http.get("http://localhost:8787/me", () =>
+      HttpResponse.json({ issuer: "portal", subject: "alice", displayName: "Alice", isAdmin: false }),
+    ),
     http.get("http://localhost:8787/sessions", () => HttpResponse.json(LIST)),
     http.get("http://localhost:8787/sessions/:id/documents", () => HttpResponse.json([
       { phase: "—", key: "question", title: "Domanda originale", format: "text", content: "Attiva uno" },
@@ -62,6 +65,91 @@ beforeEach(() => {
   );
 });
 
+test("regular users load only their sessions and never see administrator controls", async () => {
+  let scope: string | null = null;
+  server.use(http.get("http://localhost:8787/sessions", ({ request }) => {
+    scope = new URL(request.url).searchParams.get("scope");
+    return HttpResponse.json(LIST);
+  }));
+  wrap();
+  await screen.findByText("Attiva uno");
+  expect(scope).toBe("mine");
+  expect(screen.queryByRole("button", { name: "All sessions" })).not.toBeInTheDocument();
+  expect(screen.queryByText(/administrator view/i)).not.toBeInTheDocument();
+});
+
+test("administrators can explicitly switch to all sessions and see owners", async () => {
+  let scope = "";
+  server.use(
+    http.get("http://localhost:8787/me", () =>
+      HttpResponse.json({ issuer: "portal", subject: "alice", displayName: "Alice", isAdmin: true }),
+    ),
+    http.get("http://localhost:8787/sessions", ({ request }) => {
+      scope = new URL(request.url).searchParams.get("scope") ?? "";
+      return HttpResponse.json([
+        { ...LIST[0], author: "Alice" },
+        { ...LIST[1], id: "s3", question: "Another owner's session", archived: false, author: "Bob" },
+      ]);
+    }),
+  );
+  wrap();
+  await screen.findByRole("button", { name: "All sessions" });
+  await userEvent.click(screen.getByRole("button", { name: "All sessions" }));
+  await waitFor(() => expect(scope).toBe("all"));
+  expect(await screen.findByText("Administrator view: all sessions")).toBeInTheDocument();
+  expect(screen.getByText("Owner: Bob")).toBeInTheDocument();
+});
+
+test("administrator confirms before deleting another owner's session", async () => {
+  let deletes = 0;
+  server.use(
+    http.get("http://localhost:8787/me", () =>
+      HttpResponse.json({ issuer: "portal", subject: "alice", displayName: "Alice", isAdmin: true }),
+    ),
+    http.get("http://localhost:8787/sessions", () => HttpResponse.json([
+      { ...LIST[0], author: "Bob" },
+    ])),
+    http.delete("http://localhost:8787/sessions/:id", () => {
+      deletes += 1;
+      return new HttpResponse(null, { status: 204 });
+    }),
+  );
+  wrap();
+  await userEvent.click(await screen.findByRole("button", { name: "All sessions" }));
+  await screen.findByText("Owner: Bob");
+  await userEvent.click(screen.getByRole("checkbox", { name: "Select Attiva uno" }));
+  await userEvent.click(screen.getByRole("button", { name: "Delete 1 selected sessions" }));
+  expect(deletes).toBe(0);
+  expect(await screen.findByRole("heading", { name: "Delete permanently" })).toBeInTheDocument();
+  await userEvent.click(screen.getByRole("button", { name: "Delete" }));
+  await waitFor(() => expect(deletes).toBe(1));
+});
+
+test("administrator confirms before archiving another owner's session", async () => {
+  let archives = 0;
+  const confirm = vi.spyOn(window, "confirm").mockReturnValue(false);
+  server.use(
+    http.get("http://localhost:8787/me", () =>
+      HttpResponse.json({ issuer: "portal", subject: "alice", displayName: "Alice", isAdmin: true }),
+    ),
+    http.get("http://localhost:8787/sessions", () => HttpResponse.json([
+      { ...LIST[0], author: "Bob" },
+    ])),
+    http.post("http://localhost:8787/sessions/:id/archive", () => {
+      archives += 1;
+      return new HttpResponse(null, { status: 204 });
+    }),
+  );
+  wrap();
+  await userEvent.click(await screen.findByRole("button", { name: "All sessions" }));
+  await screen.findByText("Owner: Bob");
+  await userEvent.click(screen.getByRole("button", { name: "Session actions" }));
+  await userEvent.click(await screen.findByText("Archive"));
+  expect(confirm).toHaveBeenCalledWith("Archive Bob's session?");
+  expect(archives).toBe(0);
+  confirm.mockRestore();
+});
+
 test("active list shows group header and hides archived sessions", async () => {
   wrap();
   expect(await screen.findByText("Attiva uno")).toBeInTheDocument();

frontend/src/shell/AppShell.tsx

@@ -18,10 +18,10 @@ import { Checkbox } from "../components/ui/checkbox";
 import { Toaster } from "../components/ui/sonner";
 import { toast } from "sonner";
 import {
-  closeSession, listSessions, resumeSession, getSession,
+  closeSession, getMe, listSessions, resumeSession, getSession,
   renameSession, setSessionGroup, archiveSession, unarchiveSession, deleteSession, prewarmRuntime,
 } from "../api/sessions";
-import type { SessionSummary } from "../api/types";
+import type { Principal, SessionScope, SessionSummary } from "../api/types";
 import { useQuery, useQueryClient } from "@tanstack/react-query";
 import { useEffect, useMemo, useRef, useState } from "react";
 import type { CSSProperties } from "react";
@@ -48,8 +48,10 @@ export function AppShell() {
   const [streamCursorResetEpoch, setStreamCursorResetEpoch] = useState(0);
   const [creatingSession, setCreatingSession] = useState(false);
   const [awaitingQuestion, setAwaitingQuestion] = useState(false);
+  const [sessionScope, setSessionScope] = useState<SessionScope>("mine");
+  const { data: principal } = useQuery<Principal>({ queryKey: ["me"], queryFn: getMe, staleTime: Infinity });
   const { data: sessions = [] } = useQuery<SessionSummary[]>({
-    queryKey: ["sessions"], queryFn: listSessions, refetchInterval: 10_000,
+    queryKey: ["sessions", sessionScope], queryFn: () => listSessions(sessionScope), refetchInterval: 10_000,
   });
   const composerRef = useRef<HTMLTextAreaElement>(null);
 
@@ -77,6 +79,12 @@ export function AppShell() {
   const finalized = activeSession?.status === "finalized";
   const selectedSessions = sessions.filter((session) => selectedSessionIds.has(session.id));
   const allSessionsSelected = sessions.length > 0 && selectedSessions.length === sessions.length;
+  const showingAllSessions = sessionScope === "all";
+  const isForeignSession = (session: SessionSummary) => {
+    if (!showingAllSessions || !principal) return false;
+    if (!session.author) return true;
+    return session.author !== principal.subject && session.author !== principal.displayName;
+  };
 
   function selectActiveSession(id: string | null) {
     // Keep async Resume completions synchronized before React commits the state update.
@@ -245,6 +253,14 @@ export function AppShell() {
     }
   }
 
+  function requestArchiveToggle(session: SessionSummary) {
+    if (!session.archived && isForeignSession(session)) {
+      const label = session.author ? `${session.author}'s session` : "this session";
+      if (!window.confirm(`Archive ${label}?`)) return;
+    }
+    void toggleArchive(session);
+  }
+
   async function deleteSessions(targets: SessionSummary[]) {
     try {
       const results = await Promise.allSettled(targets.map((session) => deleteSession(session.id)));
@@ -266,6 +282,14 @@ export function AppShell() {
     }
   }
 
+  function requestDelete(targets: SessionSummary[]) {
+    if (targets.some(isForeignSession) || allSessionsSelected) {
+      setDeleteTargets(targets);
+      return;
+    }
+    void deleteSessions(targets);
+  }
+
   function menuFor(s: SessionSummary) {
     return (
       <SessionMenu
@@ -276,8 +300,8 @@ export function AppShell() {
         onRename={() => setRenameTarget(s)}
         onMove={(g) => move(s, g)}
         onNewGroup={() => newGroup(s)}
-        onArchiveToggle={() => toggleArchive(s)}
+        onArchiveToggle={() => requestArchiveToggle(s)}
-        onDelete={() => { void deleteSessions([s]); }}
+        onDelete={() => requestDelete([s])}
       />
     );
   }
@@ -496,6 +520,32 @@ export function AppShell() {
           </Button>
         </div>
 
+        {principal?.isAdmin && (
+          <div className="px-4 pb-3">
+            <div className="grid grid-cols-2 gap-1 rounded-lg bg-muted p-1" aria-label="Session scope">
+              <Button
+                variant={sessionScope === "mine" ? "secondary" : "ghost"}
+                size="xs"
+                onClick={() => setSessionScope("mine")}
+              >
+                My sessions
+              </Button>
+              <Button
+                variant={showingAllSessions ? "secondary" : "ghost"}
+                size="xs"
+                onClick={() => setSessionScope("all")}
+              >
+                All sessions
+              </Button>
+            </div>
+            {showingAllSessions && (
+              <p className="mt-2 text-xs font-medium text-amber-700 dark:text-amber-400">
+                Administrator view: all sessions
+              </p>
+            )}
+          </div>
+        )}
+
         {/* L1 — rail title */}
         <div className="px-4 pb-1.5 pt-1">
           <span className="thot-label text-[0.8rem] font-bold tracking-[0.18em] text-primary">
@@ -519,8 +569,7 @@ export function AppShell() {
               size="xs"
               aria-label={`Delete ${selectedSessions.length} selected sessions`}
               onClick={() => {
-                if (allSessionsSelected) setDeleteTargets(selectedSessions);
+                requestDelete(selectedSessions);
-                else void deleteSessions(selectedSessions);
               }}
             >
               <Trash2 />
@@ -571,6 +620,7 @@ export function AppShell() {
                       menuFor={menuFor}
                       selectedIds={selectedSessionIds}
                       onSelectionChange={setSessionSelected}
+                      showOwner={showingAllSessions}
                     />
                   )}
                 </div>
@@ -586,6 +636,7 @@ export function AppShell() {
                   menuFor={menuFor}
                   selectedIds={selectedSessionIds}
                   onSelectionChange={setSessionSelected}
+                  showOwner={showingAllSessions}
                 />
               )}
             </div>
@@ -609,6 +660,7 @@ export function AppShell() {
               menuFor={menuFor}
               selectedIds={selectedSessionIds}
               onSelectionChange={setSessionSelected}
+              showOwner={showingAllSessions}
             />
           )}
         </div>

frontend/src/shell/NavSessions.test.tsx

@@ -26,6 +26,19 @@ test("active session is highlighted", () => {
   expect(screen.getByTestId("session-item-s2")).toHaveAttribute("data-active", "true");
 });
 
+test("administrator session lists show the recorded owner", () => {
+  render(
+    <NavSessions
+      sessions={[{ ...SESSIONS[0], author: "Alice" }]}
+      activeSessionId={null}
+      onOpenPanel={vi.fn()}
+      menuFor={() => null}
+      showOwner
+    />,
+  );
+  expect(screen.getByText("Owner: Alice")).toBeInTheDocument();
+});
+
 test("pressing Enter on a focused row opens the panel", async () => {
   const onOpenPanel = vi.fn();
   render(<NavSessions sessions={SESSIONS} activeSessionId={null} onOpenPanel={onOpenPanel} menuFor={() => null} />);

frontend/src/shell/NavSessions.tsx

@@ -10,6 +10,7 @@ interface Props {
   menuFor: (session: SessionSummary) => ReactNode;
   selectedIds?: ReadonlySet<string>;
   onSelectionChange?: (id: string, selected: boolean) => void;
+  showOwner?: boolean;
 }
 
 function statusIndicator(status: string) {
@@ -21,7 +22,7 @@ function statusIndicator(status: string) {
 
 export function NavSessions({
   sessions, activeSessionId, onOpenPanel, menuFor,
-  selectedIds = new Set<string>(), onSelectionChange = () => undefined,
+  selectedIds = new Set<string>(), onSelectionChange = () => undefined, showOwner = false,
 }: Props) {
   if (sessions.length === 0) {
     return (
@@ -70,13 +71,20 @@ export function NavSessions({
                 title={indicator.label}
                 className={["size-1.5 shrink-0 rounded-full", indicator.color].join(" ")}
               />
-              <span
+              <span className="min-w-0 flex-1">
-                className={[
+                <span
-                  "min-w-0 flex-1 truncate text-[0.8rem] leading-snug",
+                  className={[
-                  active ? "font-semibold text-foreground" : "font-medium text-foreground/90",
+                    "block truncate text-[0.8rem] leading-snug",
-                ].join(" ")}
+                    active ? "font-semibold text-foreground" : "font-medium text-foreground/90",
-              >
+                  ].join(" ")}
-                {label}
+                >
+                  {label}
+                </span>
+                {showOwner && (
+                  <span className="block truncate text-[0.65rem] text-muted-foreground">
+                    Owner: {s.author ?? "Unknown"}
+                  </span>
+                )}
               </span>
               {menuFor(s)}
             </div>