feat(office): users admin UI, table rendering, and user save fixes

Add Users list/detail with ACL toggles and library people update/status APIs.
Fix project table layout and ANSI-safe cell rendering, and decode array
responses from people/status so saves no longer fail on JSON unmarshal.

Co-authored-by: Cursor <cursoragent@cursor.com>

http_test.go

@@ -0,0 +1,50 @@
+package onlyoffice
+
+import (
+	"encoding/json"
+	"testing"
+)
+
+func TestUnmarshalResponseObjectMap(t *testing.T) {
+	raw := json.RawMessage(`{"response":{"id":"1","isAdmin":true}}`)
+	out, err := unmarshalResponseObject(raw)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if out["id"] != "1" || out["isAdmin"] != true {
+		t.Fatalf("unexpected map: %#v", out)
+	}
+}
+
+func TestUnmarshalResponseObjectArray(t *testing.T) {
+	raw := json.RawMessage(`{"response":[{"id":"a"},{"id":"b"}]}`)
+	out, err := unmarshalResponseObject(raw)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if out["id"] != "a" {
+		t.Fatalf("expected first array element, got %#v", out)
+	}
+}
+
+func TestUnmarshalResponseObjectEmptyArray(t *testing.T) {
+	raw := json.RawMessage(`{"response":[]}`)
+	out, err := unmarshalResponseObject(raw)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if out != nil {
+		t.Fatalf("expected nil for empty array, got %#v", out)
+	}
+}
+
+func TestUnmarshalResponseObjectNull(t *testing.T) {
+	raw := json.RawMessage(`{"response":null}`)
+	out, err := unmarshalResponseObject(raw)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if out != nil {
+		t.Fatalf("expected nil, got %#v", out)
+	}
+}