fix(tapops): batasi input tahun 4 digit dan tambah paginasi 6 dokumen per halaman

- Tambah atribut max/min pada date input agar tahun dibatasi 1000-9999, plus clamping via JS sebagai fallback lintas browser
- Tambah paginasi 6 dokumen per halaman dengan navigasi prev/next dan nomor halaman (ellipsis untuk banyak halaman)
- Reset ke halaman 1 saat filter, sort, search, atau rentang tanggal berubah
- Clamp halaman aktif ke rentang valid jika jumlah hasil berkurang setelah filter
- Tambah pesan "tidak ada hasil" saat filter aktif tidak menemukan berkas
- Semua DOM pagination dibangun via safe DOM API (tanpa innerHTML)

groups/Tapops/css/documents.css

@@ -765,6 +765,104 @@ a.btn-action-outline:hover {
     }
 }
 
+/* ===========================================
+   Responsive — Phone (≤480px)
+   =========================================== */
+
+/* ===========================================
+   Pagination
+   =========================================== */
+
+.doc-pagination {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    padding: 32px 0 0;
+    gap: 16px;
+    flex-wrap: wrap;
+}
+
+.pagination-info {
+    font-size: 0.75rem;
+    font-weight: 800;
+    color: #94a3b8;
+    text-transform: uppercase;
+    letter-spacing: 0.5px;
+}
+
+.pagination-nav {
+    display: flex;
+    align-items: center;
+    gap: 6px;
+}
+
+.pagination-btn {
+    min-width: 40px;
+    height: 40px;
+    padding: 0 10px;
+    border: 1px solid #e2e8f0;
+    background: white;
+    color: var(--primary-blue);
+    font-size: 0.85rem;
+    font-weight: 700;
+    cursor: pointer;
+    border-radius: 4px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    transition: all 0.2s ease;
+    font-family: inherit;
+}
+
+.pagination-btn:hover:not(.disabled):not(.active) {
+    border-color: var(--secondary-gold);
+    background: #fffdf5;
+}
+
+.pagination-btn.active {
+    background: var(--primary-blue);
+    border-color: var(--primary-blue);
+    color: white;
+}
+
+.pagination-btn.disabled {
+    opacity: 0.4;
+    cursor: not-allowed;
+    pointer-events: none;
+}
+
+.pagination-ellipsis {
+    min-width: 32px;
+    height: 40px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    color: #94a3b8;
+    font-weight: 700;
+    font-size: 1rem;
+    letter-spacing: 1px;
+}
+
+@media (max-width: 768px) {
+    .doc-pagination {
+        flex-direction: column;
+        align-items: center;
+        gap: 12px;
+    }
+}
+
+@media (max-width: 480px) {
+    .pagination-btn {
+        min-width: 36px;
+        height: 36px;
+        font-size: 0.8rem;
+    }
+
+    .pagination-nav {
+        gap: 4px;
+    }
+}
+
 /* ===========================================
    Responsive — Phone (≤480px)
    =========================================== */