W8. Log & Dashboard

sosmed_post_log:

konten_id, platform, status (pending/sukses/gagal), url_post

waktu_kirim, error_message, retry_count, dicoba_oleh (user/system)

Dashboard admin:

- Riwayat semua posting (filter: platform, status, tanggal)

- Posting gagal → tombol retry manual

- Status koneksi semua akun (hijau/kuning/merah)

- Statistik engagement (views, likes, shares) — fase 2 opsional