diff --git a/apps/api/src/activities/activities.controller.ts b/apps/api/src/activities/activities.controller.ts
index a71d5ee..28ce783 100644
--- a/apps/api/src/activities/activities.controller.ts
+++ b/apps/api/src/activities/activities.controller.ts
@@ -210,6 +210,7 @@ export class ActivitiesController {
         title: query.title,
         customer: query.customer,
         due: query.due,
+        priority: query.priority,
         boardId: query.boardId,
       },
     );
@@ -246,6 +247,7 @@ export class ActivitiesController {
         title: query.title,
         customer: query.customer,
         due: query.due,
+        priority: query.priority,
         boardId: query.boardId,
       },
       query.stageId ? { stageId: query.stageId } : undefined,
@@ -279,6 +281,7 @@ export class ActivitiesController {
         title: query.title,
         customer: query.customer,
         due: query.due,
+        priority: query.priority,
         boardId: query.boardId,
       },
       query.stageId ? { stageId: query.stageId } : undefined,
diff --git a/apps/api/src/activities/activities.service.ts b/apps/api/src/activities/activities.service.ts
index 75e7b6b..35207e3 100644
--- a/apps/api/src/activities/activities.service.ts
+++ b/apps/api/src/activities/activities.service.ts
@@ -123,6 +123,7 @@ type ListFacets = {
   customer?: string;
   /** set = زمان شروع دارد، unset = ندارد */
   due?: 'set' | 'unset';
+  priority?: ActivityDto['priority'];
   /** گروه فعالیت؛ خالی = همهٔ گروه‌ها */
   boardId?: string;
 };
@@ -1369,11 +1370,13 @@ export class ActivitiesService {
     const facetTypeDef = facets?.typeDefId?.trim();
     const facetTitle = facets?.title?.trim();
     const facetCustomer = facets?.customer?.trim();
+    const facetPriority = facets?.priority;
     const andParts: Prisma.ActivityWhereInput[] = [
       scope,
       ...(facets?.type ? [{ type: facets.type }] : []),
       ...(facetTypeDef ? [this.types.whereForType(typeRows, facetTypeDef)] : []),
       ...(facets?.status ? [{ status: facets.status }] : []),
+      ...(facetPriority ? [{ priority: facetPriority }] : []),
       ...(facetTitle ? [{ title: ci(facetTitle) }] : []),
       ...(facetCustomer ? [this.customerWhere(facetCustomer)] : []),
       ...(facetAssignee
diff --git a/apps/api/src/activities/dto.ts b/apps/api/src/activities/dto.ts
index 0a683ec..33a9926 100644
--- a/apps/api/src/activities/dto.ts
+++ b/apps/api/src/activities/dto.ts
@@ -93,6 +93,11 @@ export class ListActivitiesQueryDto {
   @IsString()
   typeDefId?: string;
 
+  /** اولویت فعالیت (کلید ثابت؛ برچسب در تنظیمات سازمان) */
+  @IsOptional()
+  @IsIn(ACTIVITY_PRIORITIES)
+  priority?: (typeof ACTIVITY_PRIORITIES)[number];
+
   /** شناسهٔ مرحله یا 'all' — حالت تب/کانبان مراحل */
   @IsOptional()
   @IsString()
diff --git a/apps/web/src/components/activities/ActivitiesKanban.vue b/apps/web/src/components/activities/ActivitiesKanban.vue
index 24c7def..0a21942 100644
--- a/apps/web/src/components/activities/ActivitiesKanban.vue
+++ b/apps/web/src/components/activities/ActivitiesKanban.vue
@@ -511,6 +511,7 @@ function activityQuery(id: string) {
   if (source.typeDefId) query.typeDefId = source.typeDefId;
   else if (source.type) query.type = source.type;
   if (source.status) query.status = source.status;
+  if (source.priority) query.priority = source.priority;
   if (source.assigneeId) query.assigneeId = source.assigneeId;
   if (source.title) query.title = source.title;
   if (source.customer) query.customer = source.customer;
diff --git a/apps/web/src/components/activities/ActivityDeskFilters.vue b/apps/web/src/components/activities/ActivityDeskFilters.vue
index fbaf69a..44047a0 100644
--- a/apps/web/src/components/activities/ActivityDeskFilters.vue
+++ b/apps/web/src/components/activities/ActivityDeskFilters.vue
@@ -1,7 +1,14 @@
 <script setup lang="ts">
 import { computed, ref, watch } from 'vue';
 
-export type DeskFilterField = 'title' | 'who' | 'customer' | 'type' | 'when' | 'status';
+export type DeskFilterField =
+  | 'title'
+  | 'who'
+  | 'customer'
+  | 'type'
+  | 'priority'
+  | 'when'
+  | 'status';
 
 const props = defineProps<{
   /** یک ستون، یا پنل کامل بالای صفحه */
@@ -10,11 +17,13 @@ const props = defineProps<{
   customer: string;
   due: '' | 'set' | 'unset';
   typeKey: string;
+  priorityKey: string;
   statusKey: string;
   assigneeId: string;
   showAssignee: boolean;
   users: Array<{ id: string; fullName: string }>;
   types: Array<{ key: string; label: string }>;
+  priorities: Array<{ key: string; label: string; color?: string }>;
   statuses: Array<{ key: string; label: string }>;
 }>();
 
@@ -23,6 +32,7 @@ const emit = defineEmits<{
   customer: [value: string];
   due: [value: '' | 'set' | 'unset'];
   type: [value: string];
+  priority: [value: string];
   status: [value: string];
   assignee: [value: string];
   clear: [];
@@ -86,6 +96,7 @@ const hasAny = computed(
   () =>
     Boolean(props.title.trim() || props.customer.trim() || props.due || props.assigneeId) ||
     props.typeKey !== 'all' ||
+    props.priorityKey !== 'all' ||
     props.statusKey !== 'all',
 );
 
@@ -101,6 +112,9 @@ const whoLabel = computed(
 const typeLabel = computed(
   () => props.types.find((item) => item.key === props.typeKey)?.label || 'همه',
 );
+const priorityLabel = computed(
+  () => props.priorities.find((item) => item.key === props.priorityKey)?.label || 'همه',
+);
 const statusLabel = computed(
   () => props.statuses.find((item) => item.key === props.statusKey)?.label || 'همه',
 );
@@ -144,6 +158,11 @@ function pickType(next: string) {
   finish();
 }
 
+function pickPriority(next: string) {
+  emit('priority', props.priorityKey === next && next !== 'all' ? 'all' : next);
+  finish();
+}
+
 function pickStatus(next: string) {
   emit('status', props.statusKey === next && next !== 'all' ? 'all' : next);
   finish();
@@ -282,6 +301,36 @@ function pickAssignee(next: string) {
       </div>
     </section>
 
+    <section v-if="shows('priority')">
+      <button
+        v-if="field === 'all'"
+        type="button"
+        class="acc"
+        :class="{ on: priorityKey !== 'all' }"
+        @click="toggleSection('priority')"
+      >
+        <span>اولویت</span>
+        <em>{{ priorityLabel }}</em>
+      </button>
+      <div v-if="opened('priority')" class="pick" role="listbox" aria-label="اولویت">
+        <button
+          v-for="opt in priorities"
+          :key="opt.key"
+          type="button"
+          :class="{ on: priorityKey === opt.key }"
+          @click="pickPriority(opt.key)"
+        >
+          <span
+            v-if="opt.color && opt.key !== 'all'"
+            class="prio-dot"
+            :style="{ background: opt.color }"
+            aria-hidden="true"
+          />
+          {{ opt.label }}
+        </button>
+      </div>
+    </section>
+
     <section v-if="shows('when')">
       <button
         v-if="field === 'all'"
@@ -434,6 +483,9 @@ function pickAssignee(next: string) {
 }
 
 .pick button {
+  display: flex;
+  align-items: center;
+  gap: 0.4rem;
   text-align: start;
   border-radius: 8px;
   padding: 0.42rem 0.5rem;
@@ -450,6 +502,13 @@ function pickAssignee(next: string) {
   font-weight: 700;
 }
 
+.prio-dot {
+  width: 0.55rem;
+  height: 0.55rem;
+  border-radius: 50%;
+  flex: none;
+}
+
 .seg {
   display: flex;
   gap: 0.25rem;
diff --git a/apps/web/src/views/ActivitiesView.vue b/apps/web/src/views/ActivitiesView.vue
index 7f239da..8f0b7d8 100644
--- a/apps/web/src/views/ActivitiesView.vue
+++ b/apps/web/src/views/ActivitiesView.vue
@@ -43,6 +43,7 @@ import type {
   ActivityBoardDto,
   ActivityDto,
   ActivityFilter,
+  ActivityPriority,
   ActivityStageCountsDto,
   ActivityStageDto,
   ActivityStatus,
@@ -51,7 +52,7 @@ import type {
   OrgUserDto,
   PaginatedResponse,
 } from '@mento/shared';
-import { brand } from '@mento/shared';
+import { ACTIVITY_PRIORITY_KEYS, brand } from '@mento/shared';
 import { useAuthStore } from '@/stores/auth';
 import { canMutateActivity } from '@/lib/activity-access';
 import { canManageSettings, canViewAllRecords } from '@/lib/roles';
@@ -95,6 +96,7 @@ const actGridStyle = computed(() => ({
 
 /** 'all' یا شناسهٔ نوع فعالیت */
 type TypeFilter = string;
+type PriorityFilter = 'all' | ActivityPriority;
 type StatusFilter = 'all' | ActivityStatus;
 type UiStatus = 'done' | 'progress' | 'planned' | 'overdue' | 'canceled';
 type DeskScope = 'mine' | 'team';
@@ -122,6 +124,18 @@ const STATUS_FILTERS: Array<{ key: StatusFilter; label: string }> = [
   { key: 'canceled', label: 'لغو شده' },
 ];
 
+const activityPriorities = useActivityPriorities();
+const PRIORITY_FILTERS = computed<
+  Array<{ key: PriorityFilter; label: string; color?: string }>
+>(() => [
+  { key: 'all', label: 'همه اولویت‌ها' },
+  ...activityPriorities.items.value.map((row) => ({
+    key: row.key as PriorityFilter,
+    label: row.label,
+    color: row.color,
+  })),
+]);
+
 const pageSize = usePageSize('activities', 10);
 
 const route = useRoute();
@@ -181,7 +195,7 @@ const boardDeleteOpen = ref(false);
 
 async function onTypesChanged() {
   await activityTypes.load(true);
-  await useActivityPriorities().load(true);
+  await activityPriorities.load(true);
   kanbanReload.value += 1;
   await refreshAll();
 }
@@ -245,6 +259,13 @@ const statusFilter = computed<StatusFilter>(() => {
     : 'all';
 });
 
+const priorityFilter = computed<PriorityFilter>(() => {
+  const value = typeof route.query.priority === 'string' ? route.query.priority : 'all';
+  return ACTIVITY_PRIORITY_KEYS.includes(value as ActivityPriority)
+    ? (value as ActivityPriority)
+    : 'all';
+});
+
 const assigneeFilter = computed(() =>
   typeof route.query.assigneeId === 'string' ? route.query.assigneeId : '',
 );
@@ -323,6 +344,7 @@ const sharedParams = computed<Record<string, string | undefined>>(() => ({
       ? legacyBaseType.value
       : undefined,
   status: statusFilter.value === 'all' ? undefined : statusFilter.value,
+  priority: priorityFilter.value === 'all' ? undefined : priorityFilter.value,
   assigneeId: assigneeFilter.value || undefined,
   title: titleFilter.value.trim() || undefined,
   customer: customerFilter.value.trim() || undefined,
@@ -335,6 +357,7 @@ function stageDotStyle(s: ActivityStageDto) {
 const activeFacetCount = computed(() => {
   let n = 0;
   if (typeFilter.value !== 'all') n += 1;
+  if (priorityFilter.value !== 'all') n += 1;
   if (statusFilter.value !== 'all') n += 1;
   if (assigneeFilter.value) n += 1;
   if (titleFilter.value.trim()) n += 1;
@@ -437,6 +460,7 @@ function deskDetailQuery(columnStageId?: string): Record<string, string> {
   if (search) query.q = search;
   if (typeFilter.value !== 'all') query.typeDefId = typeFilter.value;
   if (statusFilter.value !== 'all') query.status = statusFilter.value;
+  if (priorityFilter.value !== 'all') query.priority = priorityFilter.value;
   if (assigneeFilter.value) query.assigneeId = assigneeFilter.value;
   if (titleFilter.value.trim()) query.title = titleFilter.value.trim();
   if (customerFilter.value.trim()) query.customer = customerFilter.value.trim();
@@ -775,6 +799,13 @@ function setStatusFilter(next: string) {
   patchFacetQuery({ status: value === 'all' ? undefined : value });
 }
 
+function setPriorityFilter(next: string) {
+  const value: PriorityFilter = ACTIVITY_PRIORITY_KEYS.includes(next as ActivityPriority)
+    ? (next as ActivityPriority)
+    : 'all';
+  patchFacetQuery({ priority: value === 'all' ? undefined : value });
+}
+
 function setAssigneeFilter(next: string) {
   patchFacetQuery({
     assigneeId: next || undefined,
@@ -799,6 +830,7 @@ function clearFacets() {
     type: undefined,
     typeDefId: undefined,
     status: undefined,
+    priority: undefined,
     assigneeId: undefined,
     title: undefined,
     customer: undefined,
@@ -1164,6 +1196,7 @@ onMounted(() => {
   mobileQuery.addEventListener('change', syncMobile);
   void loadUsers();
   void activityTypes.load(true);
+  void activityPriorities.load();
   void loadBoards()
     .then(() => loadStages())
     .then(() => {
@@ -1461,16 +1494,19 @@ onUnmounted(() => {
                 :customer="customerFilter"
                 :due="dueFilter"
                 :type-key="typeFilter"
+                :priority-key="priorityFilter"
                 :status-key="statusFilter"
                 :assignee-id="assigneeFilter"
                 :show-assignee="showDeskTabs"
                 :users="users"
                 :types="TYPE_FILTERS"
+                :priorities="PRIORITY_FILTERS"
                 :statuses="STATUS_FILTERS"
                 @title="setTitleFilter"
                 @customer="setCustomerFilter"
                 @due="setDueFilter"
                 @type="setTypeFilter"
+                @priority="setPriorityFilter"
                 @status="setStatusFilter"
                 @assignee="setAssigneeFilter"
                 @clear="clearFacets"
@@ -1680,16 +1716,19 @@ onUnmounted(() => {
                   :customer="customerFilter"
                   :due="dueFilter"
                   :type-key="typeFilter"
+                  :priority-key="priorityFilter"
                   :status-key="statusFilter"
                   :assignee-id="assigneeFilter"
                   :show-assignee="showDeskTabs"
                   :users="users"
                   :types="TYPE_FILTERS"
+                  :priorities="PRIORITY_FILTERS"
                   :statuses="STATUS_FILTERS"
                   @title="setTitleFilter"
                   @customer="setCustomerFilter"
                   @due="setDueFilter"
                   @type="setTypeFilter"
+                  @priority="setPriorityFilter"
                   @status="setStatusFilter"
                   @assignee="setAssigneeFilter"
                   @done="onFacetDone"
diff --git a/apps/web/src/views/ActivityDetailView.vue b/apps/web/src/views/ActivityDetailView.vue
index f4f5189..6243e82 100644
--- a/apps/web/src/views/ActivityDetailView.vue
+++ b/apps/web/src/views/ActivityDetailView.vue
@@ -52,8 +52,33 @@ import {
 const route = useRoute();
 const router = useRouter();
 
-const ACTIVITY_LIST_QUERY = ['board', 'view', 'desk', 'filter', 'stage', 'q', 'typeDefId', 'status', 'assigneeId', 'title', 'customer', 'due'] as const;
-const NAV_API_QUERY = ['q', 'desk', 'type', 'typeDefId', 'status', 'assigneeId', 'title', 'customer', 'due'] as const;
+const ACTIVITY_LIST_QUERY = [
+  'board',
+  'view',
+  'desk',
+  'filter',
+  'stage',
+  'q',
+  'typeDefId',
+  'status',
+  'priority',
+  'assigneeId',
+  'title',
+  'customer',
+  'due',
+] as const;
+const NAV_API_QUERY = [
+  'q',
+  'desk',
+  'type',
+  'typeDefId',
+  'status',
+  'priority',
+  'assigneeId',
+  'title',
+  'customer',
+  'due',
+] as const;
 
 function activitiesListLocation() {
   const query: Record<string, string> = {};
@@ -800,6 +825,7 @@ function moveToStage(stageId: string) {
   if (activity.value.stageId === stageId) return;
   const target = boardStages.value.find((stage) => stage.id === stageId);
   if (!target) return;
+  const leftId = id.value;
   Modal.confirm({
     title: 'جابه‌جایی مرحله',
     content: `به ستون «${target.name}» منتقل می‌شود. انجام شود؟`,
@@ -810,7 +836,7 @@ function moveToStage(stageId: string) {
       stageMoving.value = true;
       error.value = '';
       try {
-        const { data } = await api.patch<ActivityDto>(`/activities/${id.value}/stage`, { stageId });
+        const { data } = await api.patch<ActivityDto>(`/activities/${leftId}/stage`, { stageId });
         if (data.status !== target.kind) {
           message.info(
             'سهم شما ثبت شد. فعالیت وقتی انجام‌شده می‌شود که همهٔ مسئول‌ها سهم خود را بزنند.',
@@ -818,8 +844,8 @@ function moveToStage(stageId: string) {
           await load();
           return;
         }
-        activity.value = data;
-        hydrateDraft(data);
+        discardDrafts();
+        await advanceAfterLeavingColumn(leftId);
       } catch {
         error.value = 'جابه‌جایی مرحله ناموفق بود.';
         throw new Error('stage-move-failed');
@@ -877,20 +903,20 @@ async function loadUsers() {
 async function complete(kind: 'share' | 'force' | 'undo' = 'share') {
   if (!id.value) return;
   if (kind !== 'undo' && isDone.value) return;
+  const leftId = id.value;
   saving.value = true;
   error.value = '';
   try {
     const params =
       kind === 'force' ? { force: '1' } : kind === 'undo' ? { undo: '1' } : undefined;
     const { data } = await api.patch<ActivityDto>(
-      `/activities/${id.value}/complete`,
+      `/activities/${leftId}/complete`,
       undefined,
       { params },
     );
     if (data.status === 'done') {
-      // مثل بازگشت و پیش‌نمایش: فیلتر/نمای قبلی حفظ شود
       discardDrafts();
-      leaveToActivitiesList();
+      await advanceAfterLeavingColumn(leftId);
       return;
     }
     activity.value = data;
@@ -928,11 +954,13 @@ async function reopen() {
     warnNoMutatePermission();
     return;
   }
+  const leftId = id.value;
   saving.value = true;
   error.value = '';
   try {
-    await api.patch(`/activities/${id.value}`, { status: 'open' });
-    await load();
+    await api.patch(`/activities/${leftId}`, { status: 'open' });
+    discardDrafts();
+    await advanceAfterLeavingColumn(leftId);
   } catch {
     error.value = 'بازگشایی کار ناموفق بود.';
   } finally {
@@ -1003,6 +1031,13 @@ const navIds = ref<string[]>([]);
 const deskBrowse = computed(
   () => route.query.from === 'desk' && typeof route.query.nav === 'string' && route.query.nav.length > 0,
 );
+const navColumnStageId = computed(() => {
+  const fromQuery =
+    typeof route.query.stage === 'string' && route.query.stage && route.query.stage !== 'all'
+      ? route.query.stage
+      : '';
+  return fromQuery || activity.value?.stageId || '';
+});
 const navIndex = computed(() => navIds.value.indexOf(id.value));
 const prevNavId = computed(() => (navIndex.value > 0 ? navIds.value[navIndex.value - 1]! : ''));
 const nextNavId = computed(() =>
@@ -1012,13 +1047,13 @@ const nextNavId = computed(() =>
 );
 const showNav = computed(() => deskBrowse.value && navIndex.value >= 0);
 
-function navStorageKey(token: string) {
-  return `activity-nav:${token}`;
+function navStorageKey(token: string, stageId: string) {
+  return `activity-nav:${token}:${stageId || 'none'}`;
 }
 
-function readNavCache(token: string): string[] | null {
+function readNavCache(token: string, stageId: string): string[] | null {
   try {
-    const raw = sessionStorage.getItem(navStorageKey(token));
+    const raw = sessionStorage.getItem(navStorageKey(token, stageId));
     if (!raw) return null;
     const parsed = JSON.parse(raw) as { ids?: unknown };
     if (!Array.isArray(parsed.ids) || parsed.ids.some((item) => typeof item !== 'string')) return null;
@@ -1028,42 +1063,70 @@ function readNavCache(token: string): string[] | null {
   }
 }
 
+function writeNavCache(token: string, stageId: string, ids: string[]) {
+  try {
+    sessionStorage.setItem(navStorageKey(token, stageId), JSON.stringify({ ids }));
+  } catch {
+    /* حالت خصوصی مرورگر */
+  }
+}
+
+/** بعد از ترک ستون: برو بعدیِ همان ستون، وگرنه قبلی؛ اگر خالی بود برو فهرست. */
+async function advanceAfterLeavingColumn(leftId: string) {
+  commentOpen.value = false;
+  postponeOpen.value = false;
+  if (!deskBrowse.value) {
+    leaveToActivitiesList();
+    return;
+  }
+  const list = navIds.value;
+  const idx = list.indexOf(leftId);
+  const target =
+    idx >= 0 && idx < list.length - 1
+      ? list[idx + 1]!
+      : idx > 0
+        ? list[idx - 1]!
+        : '';
+  const remaining = list.filter((item) => item !== leftId);
+  navIds.value = remaining;
+  const token = typeof route.query.nav === 'string' ? route.query.nav : '';
+  const stageId = navColumnStageId.value;
+  if (token) writeNavCache(token, stageId, remaining);
+  if (target) {
+    await router.push({ name: 'activity-detail', params: { id: target }, query: route.query });
+    return;
+  }
+  leaveToActivitiesList();
+}
+
 let navSeq = 0;
 async function loadNav() {
   const seq = ++navSeq;
   const token = typeof route.query.nav === 'string' ? route.query.nav : '';
-  const columnMissing =
-    route.query.view === 'board' &&
-    (typeof route.query.stage !== 'string' || !route.query.stage || route.query.stage === 'all');
-  if (!deskBrowse.value || !token || columnMissing) {
-    navIds.value = [];
+  const stageId = navColumnStageId.value;
+  if (!deskBrowse.value || !token || !stageId) {
+    if (seq === navSeq) navIds.value = [];
     return;
   }
-  const cached = readNavCache(token);
+  const cached = readNavCache(token, stageId);
   if (cached) {
     if (seq === navSeq) navIds.value = cached;
     return;
   }
   const params: Record<string, string> = {
     filter: typeof route.query.filter === 'string' && route.query.filter ? route.query.filter : 'today',
+    stageId,
   };
   for (const key of NAV_API_QUERY) {
     const value = route.query[key];
     if (typeof value === 'string' && value) params[key] = value;
   }
   if (typeof route.query.board === 'string' && route.query.board) params.boardId = route.query.board;
-  if (typeof route.query.stage === 'string' && route.query.stage && route.query.stage !== 'all') {
-    params.stageId = route.query.stage;
-  }
   try {
     const { data } = await api.get<{ ids: string[] }>('/activities/nav-ids', { params });
     if (seq !== navSeq) return;
     const ids = Array.isArray(data.ids) ? data.ids : [];
-    try {
-      sessionStorage.setItem(navStorageKey(token), JSON.stringify({ ids }));
-    } catch {
-      /* حالت خصوصی مرورگر */
-    }
+    writeNavCache(token, stageId, ids);
     navIds.value = ids;
   } catch {
     if (seq === navSeq) navIds.value = [];
@@ -1083,7 +1146,11 @@ watch(id, () => {
   postponeOpen.value = false;
   void load();
 });
-watch(() => route.query.nav, () => void loadNav(), { immediate: true });
+watch(
+  () => [route.query.nav, navColumnStageId.value] as const,
+  () => void loadNav(),
+  { immediate: true },
+);
 /** بدون next() — در Vue Router 4 گارد async+next باعث رد شدن بدون پرسش می‌شد */
 onBeforeRouteLeave(async () => resolveDirty());
 onMounted(() => {