feat: bulk delete, team dispatch, calendar views, timeline colors

- Multi-select bulk delete in all 5 list views (Artefacts, Posts, Tasks,
  Issues, Assets) with cascade deletes and confirmation modals
- Team-based issue dispatch: team picker on public issue form, team filter
  on Issues page, copy public link from Team page and Issues header,
  team assignment in IssueDetailPanel
- Month/Week toggle on PostCalendar and TaskCalendarView
- Month/Week/Day zoom on project and campaign timelines (InteractiveTimeline)
  and ProjectDetail GanttView, with Month as default
- Custom timeline bar colors: clickable color dot with 12-color palette
  popover on project, campaign, and task timeline bars
- Artefacts default view changed to list
- BulkSelectBar reusable component
- i18n keys for all new features (en + ar)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

client/package-lock.json

@@ -18,8 +18,6 @@
       },
       "devDependencies": {
         "@eslint/js": "^9.39.1",
-        "@types/react": "^19.2.5",
-        "@types/react-dom": "^19.2.3",
         "@vitejs/plugin-react": "^5.1.1",
         "eslint": "^9.39.1",
         "eslint-plugin-react-hooks": "^7.0.1",
@@ -1627,26 +1625,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/@types/react": {
-      "version": "19.2.13",
-      "resolved": "https://registry.npmjs.org/@types/react/-/react-19.2.13.tgz",
-      "integrity": "sha512-KkiJeU6VbYbUOp5ITMIc7kBfqlYkKA5KhEHVrGMmUUMt7NeaZg65ojdPk+FtNrBAOXNVM5QM72jnADjM+XVRAQ==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "csstype": "^3.2.2"
-      }
-    },
-    "node_modules/@types/react-dom": {
-      "version": "19.2.3",
-      "resolved": "https://registry.npmjs.org/@types/react-dom/-/react-dom-19.2.3.tgz",
-      "integrity": "sha512-jp2L/eY6fn+KgVVQAOqYItbF0VY/YApe5Mz2F0aykSO8gx31bYCZyvSeYxCHKvzHG5eZjc+zyaS5BrBWya2+kQ==",
-      "dev": true,
-      "license": "MIT",
-      "peerDependencies": {
-        "@types/react": "^19.2.0"
-      }
-    },
     "node_modules/@vitejs/plugin-react": {
       "version": "5.1.3",
       "resolved": "https://registry.npmjs.org/@vitejs/plugin-react/-/plugin-react-5.1.3.tgz",
@@ -1903,13 +1881,6 @@
         "node": ">= 8"
       }
     },
-    "node_modules/csstype": {
-      "version": "3.2.3",
-      "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.2.3.tgz",
-      "integrity": "sha512-z1HGKcYy2xA8AGQfwrn0PAy+PB7X/GSj3UVJW9qKyn43xWa+gl5nXmU4qqLMRzWVLFC8KusUX8T/0kCiOYpAIQ==",
-      "dev": true,
-      "license": "MIT"
-    },
     "node_modules/date-fns": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-4.1.0.tgz",