Open a locked account whole: calendar, contacts and files too

Switching to a locked account handed to the reader moved only the mail.
Now calendar, contacts and files follow it as well, through a new
viewAccountFor that the three stores use for what they show. Settings,
signatures and push keep ownAccountFor, so nothing of the reader's is
ever written into the locked account (inbuxa AL-7).

web/src/store/__tests__/delegated-accounts.test.ts

@@ -18,6 +18,9 @@ const delegated = (access: string, sendAs = false) => ({
   isReadOnly: access === "read",
   accountCapabilities: {
     [CAP.mail]: {},
+    [CAP.calendars]: {},
+    [CAP.contacts]: {},
+    [CAP.filenode]: {},
     "urn:inbuxa:jmap": { delegation: { locked: true, access, sendAs, until: null } },
   },
 });
@@ -26,11 +29,15 @@ const sessionWith = (locked: Record<string, unknown> | null) =>
   ({
     capabilities: { [CAP.core]: { maxCallsInRequest: 16, maxObjectsInGet: 500 }, [CAP.mail]: {} },
     accounts: {
-      own: { name: "[email protected]", isPersonal: true, accountCapabilities: { [CAP.mail]: {} } },
+      own: {
+        name: "[email protected]",
+        isPersonal: true,
+        accountCapabilities: { [CAP.mail]: {}, [CAP.calendars]: {}, [CAP.contacts]: {}, [CAP.filenode]: {} },
+      },
       shared: { name: "[email protected]", isPersonal: false, accountCapabilities: { [CAP.mail]: {} } },
       ...(locked ? { locked } : {}),
     },
-    primaryAccounts: { [CAP.mail]: "own" },
+    primaryAccounts: { [CAP.mail]: "own", [CAP.calendars]: "own", [CAP.contacts]: "own", [CAP.filenode]: "own" },
     state: "s",
   }) as unknown as JmapSession;
 
@@ -94,6 +101,19 @@ describe("viewing a locked account", () => {
     expect(useMail.getState().accountId).toBe("own");
   });
 
+  it("brings the whole account: calendar, contacts and files, never the reader's settings", () => {
+    const s = () => useSession.getState();
+    expect(s().viewAccountFor(CAP.calendars)).toBe("own");
+    s().view("locked");
+    for (const cap of [CAP.calendars, CAP.contacts, CAP.filenode]) {
+      expect(s().viewAccountFor(cap)).toBe("locked");
+    }
+    // Settings live in the reader's own Files, whatever is in view
+    expect(s().ownAccountFor(CAP.filenode)).toBe("own");
+    s().view(null);
+    expect(s().viewAccountFor(CAP.contacts)).toBe("own");
+  });
+
   it("refuses an account that isn't delegated", () => {
     useSession.getState().view("shared");
     expect(useSession.getState().viewing).toBeNull();