Group six more clusters out of web/src/lib

Takes the flat module count from 66 to 42, continuing what admin/ and
calendar/ started.

  lib/mailbox/  archiveDate, emptyFolder, folderMove, labelTree,
                mailboxName, mailboxRoute
  lib/sieve/    sieve, sieveApply, sieveFolders
  lib/input/    keyboard, swipe, touch, listSelection, dropUpload
  lib/notify/   notify, webpush, webpushEnable
  lib/sw/       swCache, swFacts, staleBuild
  lib/text/     html, markdown, text, emlName

FOUR THINGS THE FILENAMES GET WRONG, each checked by reading the file
rather than trusting what it is called:

  - appFolder is not a mailbox. It is the `ihasmail` folder in JMAP
    *Files*, where the client keeps signature images and synced settings.
    It stays flat.
  - format holds no formatting of text. It re-exports the date and clock
    formatters, so it belongs with dates/datetime, not with text/.
  - preview is the file viewer deciding what it can show without
    downloading, and source is where to point someone asking for this
    instance's AGPL source. Neither is about text.
  - notify is not Web Push. It is the tab title, the favicon badge and
    the new-mail sound -- in-app notification, which is why it sits with
    webpush rather than under sw/ with the service worker's own concerns.

threadScroll stays flat too: it decides where a conversation opens, which
is view state rather than a gesture, and input/ is honest only if
everything in it interprets something the reader did.

No behavior change. Almost every reference was on the @/ alias; eight
relative imports in files that did not move, or that moved away from a
sibling, needed rewriting by hand.

web/src/views/mail/FilterFromMessage.tsx

@@ -2,8 +2,8 @@ import { useEffect, useState } from "react";
 import type { Email, Id } from "@/jmap/types";
 import { useSieve } from "@/store/sieve";
 import { useMail } from "@/store/mail";
-import { ruleFromEmail, applyRuleToMailbox } from "@/lib/sieveApply";
-import { upsertRule, type SieveRule } from "@/lib/sieve";
+import { ruleFromEmail, applyRuleToMailbox } from "@/lib/sieve/sieveApply";
+import { upsertRule, type SieveRule } from "@/lib/sieve/sieve";
 import { RuleDialog } from "../settings/RuleDialog";
 import { toast } from "@/ui/toast";
 import { Spinner } from "@/ui/misc";

web/src/views/mail/MailView.tsx

@@ -7,7 +7,7 @@ import { useSettings } from "@/store/settings";
 import { withBase } from "@/lib/basePath";
 import { useCompose } from "@/store/compose";
 import { buildFilter, describeFilter, parseQuery } from "@/lib/search";
-import { keyboard } from "@/lib/keyboard";
+import { keyboard } from "@/lib/input/keyboard";
 import { useIsNarrow } from "@/ui/misc";
 import { Splitter } from "@/ui/Splitter";
 import { MessageList } from "./MessageList";
@@ -17,10 +17,10 @@ import { LabelPicker } from "./LabelPicker";
 import type { Id } from "@/jmap/types";
 import { confirmDialog } from "@/ui/dialog";
 import { toast } from "@/ui/toast";
-import { isUnknownMailbox } from "@/lib/mailboxRoute";
+import { isUnknownMailbox } from "@/lib/mailbox/mailboxRoute";
 import { scheduledMailboxIdFrom, useScheduled } from "@/store/scheduled";
 import { plural, t as translate, tNode } from "@/lib/i18n";
-import { mailboxDisplayName } from "@/lib/mailboxName";
+import { mailboxDisplayName } from "@/lib/mailbox/mailboxName";
 
 export function MailView({ mailboxId, threadId, search }: { mailboxId?: string; threadId?: string; search?: boolean }) {
   const [, navigate] = useLocation();

web/src/views/mail/MailboxPicker.tsx

@@ -4,7 +4,7 @@ import { useMail } from "@/store/mail";
 import { Dialog } from "@/ui/dialog";
 import type { Id, Mailbox } from "@/jmap/types";
 import { t } from "@/lib/i18n";
-import { mailboxDisplayPath } from "@/lib/mailboxName";
+import { mailboxDisplayPath } from "@/lib/mailbox/mailboxName";
 
 /**
  * @param need which right a folder has to grant to be worth offering.

web/src/views/mail/MailboxTree.tsx

@@ -2,8 +2,8 @@ import { useEffect, useMemo, useState, type DragEvent, type ReactNode } from "re
 import { Link, useLocation } from "wouter";
 import { AlertOctagon, Archive, ChevronDown, ChevronLeft, Clock, ChevronRight, File, Folder, FolderPlus, Inbox, Mail, MoreVertical, Palette, Send, Star, Tag, Trash2, Plus, Pencil, Eye, EyeOff, CheckCheck, Eraser, Share2, X, FolderInput } from "lucide-react";
 import { useMail } from "@/store/mail";
-import { canEmpty, confirmAndEmpty, emptyLabel } from "@/lib/emptyFolder";
-import { labelTree, visibleLabels } from "@/lib/labelTree";
+import { canEmpty, confirmAndEmpty, emptyLabel } from "@/lib/mailbox/emptyFolder";
+import { labelTree, visibleLabels } from "@/lib/mailbox/labelTree";
 import { isScheduledMailbox } from "@/store/scheduled";
 import { useSettings } from "@/store/settings";
 import type { Id, Mailbox } from "@/jmap/types";
@@ -14,10 +14,10 @@ import { toast } from "@/ui/toast";
 import { ShareDialog } from "../settings/ShareDialog";
 import { MailboxPicker } from "./MailboxPicker";
 import { loadRaw, saveJson } from "@/lib/storage";
-import { canDropFolder, canMoveFolderTo, folderColor, movable } from "@/lib/folderMove";
-import { haptic, useTouchRow } from "@/lib/touch";
+import { canDropFolder, canMoveFolderTo, folderColor, movable } from "@/lib/mailbox/folderMove";
+import { haptic, useTouchRow } from "@/lib/input/touch";
 import { plural, t } from "@/lib/i18n";
-import { mailboxDisplayName } from "@/lib/mailboxName";
+import { mailboxDisplayName } from "@/lib/mailbox/mailboxName";
 
 const ROLE_ICONS: Record<string, ReactNode> = {
   inbox: <Inbox size={20} />,

web/src/views/mail/MessageList.tsx

@@ -6,20 +6,20 @@ import { useMail, type ListState } from "@/store/mail";
 import { dateTimeKey, useSettings } from "@/store/settings";
 import type { Email, Id } from "@/jmap/types";
 import { formatListDate } from "@/lib/format";
-import { mailboxDisplayName } from "@/lib/mailboxName";
-import { groupByArchivePath, archivePath, type ArchiveGranularity } from "@/lib/archiveDate";
-import { canEmpty, confirmAndEmpty, emptyLabel } from "@/lib/emptyFolder";
+import { mailboxDisplayName } from "@/lib/mailbox/mailboxName";
+import { groupByArchivePath, archivePath, type ArchiveGranularity } from "@/lib/mailbox/archiveDate";
+import { canEmpty, confirmAndEmpty, emptyLabel } from "@/lib/mailbox/emptyFolder";
 import { rowIsOpen } from "@/lib/openMessage";
 import { displayName, shortName } from "@/lib/address";
 import { Avatar, Empty, useIsMobile, useIsTouch } from "@/ui/misc";
-import { rowClick } from "@/lib/listSelection";
+import { rowClick } from "@/lib/input/listSelection";
 import { MenuItem, MenuSep, MenuTitle, Popover, useMenu } from "@/ui/popover";
 import { useCompose } from "@/store/compose";
 import { useCalendar } from "@/store/calendar";
 import { startAppointment } from "@/lib/calendar/appointment";
 import { toast } from "@/ui/toast";
-import { haptic, usePullToRefresh, useTouchRow, PULL_TRIGGER } from "@/lib/touch";
-import { describeSwipe, type SwipeAction, type SwipeDescriptor, type SwipeIcon } from "@/lib/swipe";
+import { haptic, usePullToRefresh, useTouchRow, PULL_TRIGGER } from "@/lib/input/touch";
+import { describeSwipe, type SwipeAction, type SwipeDescriptor, type SwipeIcon } from "@/lib/input/swipe";
 import { FilterFromMessageDialog } from "./FilterFromMessage";
 import { plural, t } from "@/lib/i18n";
 

web/src/views/mail/MessageView.tsx

@@ -12,16 +12,16 @@ import { startAppointment } from "@/lib/calendar/appointment";
 import { client } from "@/jmap/client";
 import { SignatureBanner } from "./SignatureBanner";
 import { useSignature } from "@/lib/smime/useSignature";
-import { emlFilename } from "@/lib/emlName";
+import { emlFilename } from "@/lib/text/emlName";
 import { isTnef, parseTnef, type TnefAttachment } from "@/lib/tnef";
 import { internalDomains, isExternalSender, linkVerdict } from "@/lib/warnings";
 import { spamReport, type SpamReport } from "@/lib/spamScore";
 import { formatFullDate, formatListDate, formatSize } from "@/lib/format";
 import { displayName, domainOf, formatAddress } from "@/lib/address";
-import { EMAIL_BASE_CSS, TEXT_EMAIL_CSS, hasHtmlAlternative, htmlDeclaresColors, markKeptSurfaces, sanitizeEmailHtml } from "@/lib/html";
+import { EMAIL_BASE_CSS, TEXT_EMAIL_CSS, hasHtmlAlternative, htmlDeclaresColors, markKeptSurfaces, sanitizeEmailHtml } from "@/lib/text/html";
 import { openableInTab, previewKind } from "@/lib/preview";
 import { FilePreviewDialog } from "@/ui/filepreview";
-import { findQuoteStart, htmlToText, textToHtml } from "@/lib/text";
+import { findQuoteStart, htmlToText, textToHtml } from "@/lib/text/text";
 import { canShare, canShareFiles, shareFile, shareText } from "@/lib/share";
 import { Avatar } from "@/ui/misc";
 import { MenuItem, MenuSep, Popover, useMenu } from "@/ui/popover";

web/src/views/mail/ThreadView.tsx

@@ -12,7 +12,7 @@ import { Spinner, useIsNarrow, useIsTouch } from "@/ui/misc";
 import { client } from "@/jmap/client";
 import { LabelPicker } from "./LabelPicker";
 import { threadScrollTarget } from "@/lib/threadScroll";
-import { useEdgeBack } from "@/lib/touch";
+import { useEdgeBack } from "@/lib/input/touch";
 import { plural, t } from "@/lib/i18n";
 
 /** How long the opening scroll keeps its place while bodies and images land. */