fix: resolve all 69 ESLint warnings across 40 files

- Remove unused imports (Mail, CalendarIcon, Plus, Circle, cn, Link,
  MessageCircle, User, Tag, FolderUp, useEffect, LogOut, GripVertical,
  Check, X, HoverActionsMode, HoverActionsCorner, asn1js, Convert, etc.)
- Prefix unused variables/params with underscore to satisfy no-unused-vars
- Add missing React hook dependencies (exhaustive-deps)
- Wrap handleNavigateUp in useCallback and selectedGroupMembers in useMemo
- Remove unused eslint-disable directives in jmap/client.ts
- Replace as any with typed casts in filter-store and smime-store tests
- Remove dead code (macOk assignment, unused now variable)

components/calendar/calendar-agenda-view.tsx

@@ -3,7 +3,7 @@
 import { useMemo, useRef, useEffect, useCallback } from "react";
 import { useTranslations, useFormatter } from "next-intl";
 import { format, parseISO, isToday, isTomorrow, startOfDay } from "date-fns";
-import { Calendar as CalendarIcon, MapPin, Users } from "lucide-react";
+import { MapPin, Users } from "lucide-react";
 import { cn } from "@/lib/utils";
 import { parseDuration, getEventColor } from "./event-card";
 import { getEventDayBounds, getPrimaryCalendarId } from "@/lib/calendar-utils";

components/calendar/calendar-sidebar-panel.tsx

@@ -2,7 +2,7 @@
 
 import { useState, useRef, useEffect, useMemo } from "react";
 import { useTranslations } from "next-intl";
-import { Globe, ListTodo, Plus, RefreshCw, Share2, Trash2 } from "lucide-react";
+import { Globe, ListTodo, RefreshCw, Share2, Trash2 } from "lucide-react";
 import { cn, formatDateTime } from "@/lib/utils";
 import type { Calendar } from "@/lib/jmap/types";
 import { CalendarColorPicker } from "@/components/settings/calendar-management-settings";

components/calendar/task-list-view.tsx

@@ -3,7 +3,7 @@
 import { useMemo, useCallback, useState } from "react";
 import { useTranslations } from "next-intl";
 import { format, parseISO, isPast, isToday, isTomorrow } from "date-fns";
-import { Check, Circle, Flag, CalendarDays, ListTodo, Plus } from "lucide-react";
+import { Check, Flag, CalendarDays, ListTodo, Plus } from "lucide-react";
 import { cn } from "@/lib/utils";
 import type { CalendarTask, Calendar } from "@/lib/jmap/types";
 import type { TaskViewFilter } from "@/stores/task-store";

components/calendar/task-modal.tsx

@@ -6,7 +6,7 @@ import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { X, Trash2, CalendarDays, Bell, Flag } from "lucide-react";
 import { format, parseISO } from "date-fns";
-import { cn } from "@/lib/utils";
+
 import type { CalendarTask, Calendar, CalendarEventAlert } from "@/lib/jmap/types";
 
 interface TaskModalProps {
@@ -43,7 +43,7 @@ export function TaskModal({
   onSave,
   onDelete,
   onClose,
-  isMobile,
+  isMobile: _isMobile,
 }: TaskModalProps) {
   const t = useTranslations("calendar");
   const isEdit = !!task;

components/contacts/__tests__/contact-form.test.tsx

@@ -66,7 +66,7 @@ describe('ContactForm', () => {
     const onSave = vi.fn().mockResolvedValue(undefined);
     render(<ContactForm onSave={onSave} onCancel={vi.fn()} />);
 
-    const inputs = screen.getAllByRole('textbox');
+    const _inputs = screen.getAllByRole('textbox');
     const givenNameInput = screen.getByPlaceholderText('given_name');
     fireEvent.change(givenNameInput, { target: { value: 'Jane' } });
 

components/contacts/__tests__/contact-list.test.tsx

@@ -1,4 +1,4 @@
-import { render, screen, fireEvent } from '@testing-library/react';
+import { render, screen } from '@testing-library/react';
 import { describe, it, expect, vi } from 'vitest';
 import { ContactList } from '../contact-list';
 import type { ContactCard } from '@/lib/jmap/types';
@@ -22,7 +22,7 @@ const bob = makeContact({
   emails: { e0: { address: 'bob@example.com' } },
 });
 
-const group = makeContact({
+const _group = makeContact({
   id: '3',
   kind: 'group',
   name: { components: [{ kind: 'given', value: 'Team' }], isOrdered: true },

components/contacts/contact-detail.tsx

@@ -2,7 +2,7 @@
 
 import { useState, useEffect } from "react";
 import { useTranslations } from "next-intl";
-import { Mail, Phone, Building, MapPin, StickyNote, Pencil, Trash2, BookUser, Copy, Send, Globe, Cake, Tag, KeyRound, Link, Users, Briefcase, Heart, Languages, MessageCircle, User, Calendar, UserCircle, ShieldCheck, ShieldAlert, Download } from "lucide-react";
+import { Mail, Phone, Building, MapPin, StickyNote, Pencil, Trash2, BookUser, Copy, Send, Globe, Cake, Tag, KeyRound, Users, Briefcase, Heart, Languages, Calendar, UserCircle, ShieldCheck, ShieldAlert, Download } from "lucide-react";
 import { Avatar } from "@/components/ui/avatar";
 import { Button } from "@/components/ui/button";
 import { cn } from "@/lib/utils";

components/email/email-context-menu.tsx

@@ -132,7 +132,7 @@ export function EmailContextMenu({
   onEditDraft,
 }: EmailContextMenuProps) {
   const t = useTranslations("context_menu");
-  const tColor = useTranslations("email_viewer.color_tag");
+  const _tColor = useTranslations("email_viewer.color_tag");
   const emailKeywords = useSettingsStore((state) => state.emailKeywords);
   const isUnread = !email.keywords?.$seen;
   const isStarred = email.keywords?.$flagged;

components/email/email-list-item.tsx

@@ -6,7 +6,7 @@ import { formatDate } from "@/lib/utils";
 import { Email } from "@/lib/jmap/types";
 import { cn } from "@/lib/utils";
 import { Avatar } from "@/components/ui/avatar";
-import { Paperclip, Star, Circle, CheckSquare, Square, Tag, Reply, Forward } from "lucide-react";
+import { Paperclip, Star, Circle, CheckSquare, Square, Reply, Forward } from "lucide-react";
 import { useEmailStore } from "@/stores/email-store";
 import { useSettingsStore, KEYWORD_PALETTE } from "@/stores/settings-store";
 import { useAuthStore } from "@/stores/auth-store";

components/email/email-list.tsx

@@ -64,7 +64,7 @@ export function EmailList({
   const { client } = useAuthStore();
   const {
     selectedEmailIds,
-    selectAllEmails,
+    selectAllEmails: _selectAllEmails,
     clearSelection,
     batchMarkAsRead,
     batchDelete,

components/email/email-viewer.tsx

@@ -204,7 +204,7 @@ const getCurrentColor = (keywords: Record<string, boolean> | undefined) => {
 };
 
 // Helper function to format recipients with contextual display
-const formatRecipients = (
+const _formatRecipients = (
   recipients: Array<{ name?: string; email: string }> | undefined,
   currentUserEmail: string | undefined,
   t: (key: string, params?: Record<string, string | number>) => string
@@ -1751,6 +1751,7 @@ export function EmailViewer({
     smimeStore.autoImportSignerCerts,
     smimeStore.keyRecords,
     smimeStore.unlockedDecryptionKeys,
+    smimeStore,
   ]);
 
   // TNEF (winmail.dat) detection and processing
@@ -1928,7 +1929,7 @@ export function EmailViewer({
     if (decryptedCidAttachments.length > 0) {
       const urls: Record<string, string> = {};
 
-      decryptedCidAttachments.forEach((att, index) => {
+      decryptedCidAttachments.forEach((att) => {
         const bytes = getAttachmentContentBytes(att);
         if (!bytes) return;
         const cidValue = att.contentId!.replace(/^<|>$/g, '');
@@ -1985,7 +1986,7 @@ export function EmailViewer({
       cancelled = true;
       objectUrls.forEach(url => URL.revokeObjectURL(url));
     };
-  }, [client, email?.id, smimeDecryptedAttachments]);
+  }, [client, email?.id, smimeDecryptedAttachments, email?.attachments]);
 
   const effectiveAttachments = useMemo<EffectiveAttachment[]>(() => {
     if (smimeDecryptedAttachments.length > 0) {

components/email/thread-conversation-view.tsx

@@ -305,7 +305,7 @@ function EmailCard({
       cancelled = true;
       objectUrls.forEach(url => URL.revokeObjectURL(url));
     };
-  }, [client, email?.id]);
+  }, [client, email?.id, email?.attachments]);
 
   // Sanitize and prepare email HTML content
   const emailContent = useMemo(() => {

components/files/file-browser.tsx

@@ -453,13 +453,13 @@ export function FileBrowser({
         })),
       ];
 
-  const handleNavigateUp = () => {
+  const handleNavigateUp = useCallback(() => {
     if (currentPath === '/') return;
     const segments = currentPath.split('/').filter(Boolean);
     segments.pop();
     const parentPath = segments.length === 0 ? '/' : '/' + segments.join('/');
     onNavigate(parentPath, null);
-  };
+  }, [currentPath, onNavigate]);
 
   const handleResourceClick = (resource: FileResource, e: React.MouseEvent) => {
     if (resource.isDirectory) {

components/files/file-upload-area.tsx

@@ -2,7 +2,7 @@
 
 import { useCallback, useState } from "react";
 import { useTranslations } from "next-intl";
-import { Upload, FolderPlus, FilePlus, FolderUp } from "lucide-react";
+import { Upload, FolderPlus, FilePlus } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { getDroppedFilesAndFolders } from "@/lib/webdav/drop-utils";
 

components/files/folder-tree-sidebar.tsx

@@ -208,7 +208,7 @@ function FolderTreeItem({
 }) {
   const isExpanded = expandedIds.has(node.id);
   const isSelected = currentPath === node.path;
-  const isLoading = loadingIds.has(node.id);
+  const _isLoading = loadingIds.has(node.id);
   const children = childrenCache.get(node.id);
   const hasChildren = children !== undefined && children.length > 0;
   const indentPx = depth * 16;

components/identity/identity-manager-modal.tsx

@@ -45,7 +45,7 @@ export function IdentityManagerModal({ isOpen, onClose }: IdentityManagerModalPr
 
   const client = useAuthStore((state) => state.client);
   const identities = useIdentityStore((state) => state.identities);
-  const preferredPrimaryId = useIdentityStore((state) => state.preferredPrimaryId);
+  const _preferredPrimaryId = useIdentityStore((state) => state.preferredPrimaryId);
   const setPreferredPrimary = useIdentityStore((state) => state.setPreferredPrimary);
   const syncIdentities = useSyncIdentities();
 

components/layout/icon-picker.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { useState, useMemo, useRef, useEffect, useCallback } from 'react';
+import { useState, useMemo, useRef, useCallback } from 'react';
 import { useTranslations } from 'next-intl';
 import { icons as lucideIcons, type LucideIcon } from 'lucide-react';
 import { Search, X } from 'lucide-react';

components/layout/navigation-rail.tsx

@@ -2,7 +2,7 @@
 
 import { useState, useRef, useEffect, useCallback } from "react";
 import { createPortal } from "react-dom";
-import { Mail, Calendar, BookUser, HardDrive, Settings, LogOut, Keyboard, Plus } from "lucide-react";
+import { Mail, Calendar, BookUser, HardDrive, Settings, Keyboard, Plus } from "lucide-react";
 import { AccountSwitcher } from "./account-switcher";
 import { icons as lucideIcons, type LucideIcon } from "lucide-react";
 import { useConfig } from "@/hooks/use-config";

components/layout/sidebar-apps-modal.tsx

@@ -2,7 +2,7 @@
 
 import { useState, useCallback } from 'react';
 import { useTranslations } from 'next-intl';
-import { X, Plus, Pencil, Trash2, GripVertical, ExternalLink, PanelRight } from 'lucide-react';
+import { X, Plus, Pencil, Trash2, ExternalLink, PanelRight } from 'lucide-react';
 import { icons as lucideIcons, type LucideIcon } from 'lucide-react';
 import { cn } from '@/lib/utils';
 import { Button } from '@/components/ui/button';

components/layout/sidebar.tsx

@@ -429,7 +429,7 @@ export function Sidebar({
   className,
 }: SidebarProps) {
   const { sidebarCollapsed: isCollapsed, toggleSidebarCollapsed } = useUIStore();
-  const { primaryIdentity } = useAuthStore();
+  const { primaryIdentity: _primaryIdentity } = useAuthStore();
   const [expandedFolders, setExpandedFolders] = useState<Set<string>>(new Set());
   const [tagsExpanded, setTagsExpanded] = useState(() => {
     try {

components/settings/calendar-management-settings.tsx

@@ -6,7 +6,7 @@ import { useCalendarStore } from '@/stores/calendar-store';
 import { useAuthStore } from '@/stores/auth-store';
 import { toast } from '@/stores/toast-store';
 import { SettingsSection } from './settings-section';
-import { Plus, Pencil, Trash2, Check, X, Calendar as CalendarIcon, Copy, Link, Upload, Globe, RefreshCw, Eraser } from 'lucide-react';
+import { Plus, Pencil, Trash2, Calendar as CalendarIcon, Copy, Link, Upload, Globe, RefreshCw, Eraser } from 'lucide-react';
 import { cn, formatDateTime } from '@/lib/utils';
 import { ICalImportModal } from '@/components/calendar/ical-import-modal';
 import { ICalSubscriptionModal } from '@/components/calendar/ical-subscription-modal';

components/settings/email-settings.tsx

@@ -4,7 +4,7 @@ import { useState, useCallback } from 'react';
 import { useTranslations } from 'next-intl';
 import { useConfig } from '@/hooks/use-config';
 import { useSettingsStore } from '@/stores/settings-store';
-import type { ArchiveMode, HoverAction, HoverActionsMode, HoverActionsCorner } from '@/stores/settings-store';
+import type { ArchiveMode, HoverAction } from '@/stores/settings-store';
 import { ALL_HOVER_ACTIONS } from '@/stores/settings-store';
 import { useAuthStore } from '@/stores/auth-store';
 import { useEmailStore } from '@/stores/email-store';

components/settings/smime-certificate-modal.tsx

@@ -18,7 +18,7 @@ export function SmimeCertificateModal({
   isOpen,
   onClose,
   record,
-  type,
+  type: _type,
 }: SmimeCertificateModalProps) {
   const t = useTranslations("smime");
   const id = useId();