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/lib/__tests__/describeRules.test.ts

@@ -6,7 +6,7 @@
  * the joining is Intl's rather than a hardcoded " and ".
  */
 import { describe, expect, it } from "vitest";
-import { describeRule as describeSieve } from "../sieve";
+import { describeRule as describeSieve } from "../sieve/sieve";
 import { describeRule as describeRecurrence, weekdayOptions } from "../calendar/recurrence";
 import { setUiLanguageForFormatting } from "../datetime";
 import { setCatalog } from "../i18n";

web/src/lib/__tests__/htmlAlternative.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { hasHtmlAlternative } from "../html";
+import { hasHtmlAlternative } from "../text/html";
 
 /*
  * The rule: `htmlBody` is derived, so its presence proves nothing. Only the

web/src/lib/__tests__/keyboardFocus.test.ts

@@ -1,5 +1,5 @@
 import { afterEach, describe, expect, it, vi } from "vitest";
-import { isTextEntry, keyboard } from "@/lib/keyboard";
+import { isTextEntry, keyboard } from "@/lib/input/keyboard";
 
 /*
  * Shortcuts after a click on a checkbox (#260).

web/src/lib/__tests__/keyboardKeyless.test.ts

@@ -1,5 +1,5 @@
 import { afterEach, describe, expect, it, vi } from "vitest";
-import { comboOf, keyboard } from "@/lib/keyboard";
+import { comboOf, keyboard } from "@/lib/input/keyboard";
 
 /*
  * A "keydown" that carries no key. Chrome's password autofill dispatches one

web/src/lib/__tests__/keyboardSequence.test.ts

@@ -1,5 +1,5 @@
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
-import { keyboard } from "@/lib/keyboard";
+import { keyboard } from "@/lib/input/keyboard";
 
 /*
  * Two-key sequences against the single keys they start with.

web/src/lib/__tests__/shareTarget.test.ts

@@ -1,6 +1,6 @@
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import { collectShare, shareBody, SHARE_MAX_AGE_MS } from "@/lib/shareTarget";
-import { SW_CACHE_NAME } from "@/lib/swCache";
+import { SW_CACHE_NAME } from "@/lib/sw/swCache";
 
 /**
  * The handoff, from the tab's side. The worker's half cannot be exercised here

web/src/lib/__tests__/swipeNav.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { navSwipeThreshold, swipeNavDirection, swipeThreshold, lockAxis } from "@/lib/touch";
+import { navSwipeThreshold, swipeNavDirection, swipeThreshold, lockAxis } from "@/lib/input/touch";
 
 describe("navSwipeThreshold", () => {
   it("asks for more travel than a row swipe does, at every width", () => {

web/src/lib/calendar/appointment.ts

@@ -3,7 +3,7 @@ import { useCalendar, type EventDraft } from "@/store/calendar";
 import { useMail } from "@/store/mail";
 import { uniqueAddresses } from "../address";
 import { toLocalDateOnly } from "../dates";
-import { htmlToText } from "../text";
+import { htmlToText } from "../text/text";
 
 /**
  * How much of a message body is copied into an event description.

web/src/lib/filenode.ts

@@ -9,7 +9,7 @@
  * so a node has one shape and there is nothing left to detect.
  */
 import type { FileNode, Id } from "@/jmap/types";
-import { descendantIds } from "./folderMove";
+import { descendantIds } from "./mailbox/folderMove";
 
 /** Properties to request for a node. */
 export function fileNodeProps(): string[] {

web/src/lib/input/__tests__/dropUpload.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { foldersNeeded, hasDirectory, planUpload } from "@/lib/dropUpload";
+import { foldersNeeded, hasDirectory, planUpload } from "@/lib/input/dropUpload";
 
 /**
  * Dropping a folder in, reduced to the two things the DataTransfer entry API

web/src/lib/input/__tests__/listSelection.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { rowClick, type RowClick } from "@/lib/listSelection";
+import { rowClick, type RowClick } from "@/lib/input/listSelection";
 
 const IDS = ["a", "b", "c", "d", "e"];
 const click = (over: Partial<Parameters<typeof rowClick>[0]> = {}): RowClick =>

web/src/lib/mailbox/__tests__/archiveDate.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { archiveSegments, archivePath, groupByArchivePath } from "@/lib/archiveDate";
+import { archiveSegments, archivePath, groupByArchivePath } from "@/lib/mailbox/archiveDate";
 
 /**
  * The dates below are written as local-time strings on purpose. The segments

web/src/lib/mailbox/__tests__/emptyFolder.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { canEmpty, emptyLabel } from "@/lib/emptyFolder";
+import { canEmpty, emptyLabel } from "@/lib/mailbox/emptyFolder";
 import type { MailboxRole } from "@/jmap/types";
 
 /**

web/src/lib/mailbox/__tests__/labelTree.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { labelTree, visibleLabels, descendantKeywords } from "@/lib/labelTree";
+import { labelTree, visibleLabels, descendantKeywords } from "@/lib/mailbox/labelTree";
 import type { Label } from "@/store/settings";
 
 const L = (keyword: string, over: Partial<Label> = {}): Label => ({ keyword, name: keyword, color: "#000", ...over });

web/src/lib/mailbox/__tests__/mailboxName.test.ts

@@ -1,5 +1,5 @@
 import { afterEach, describe, expect, it } from "vitest";
-import { isLocalizedName, mailboxDisplayName, mailboxDisplayPath } from "@/lib/mailboxName";
+import { isLocalizedName, mailboxDisplayName, mailboxDisplayPath } from "@/lib/mailbox/mailboxName";
 import { setCatalog, type Catalog } from "@/lib/i18n";
 import type { Mailbox } from "@/jmap/types";
 

web/src/lib/mailbox/__tests__/mailboxRoute.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { isUnknownMailbox } from "@/lib/mailboxRoute";
+import { isUnknownMailbox } from "@/lib/mailbox/mailboxRoute";
 import type { Mailbox } from "@/jmap/types";
 
 /**

web/src/lib/notify/__tests__/webpush.test.ts

@@ -14,7 +14,7 @@ import {
   unsubscribeThisDevice,
   webPushAvailable,
   type JmapPushSubscription,
-} from "@/lib/webpush";
+} from "@/lib/notify/webpush";
 import { setDeviceTrusted } from "@/lib/storage";
 import type { JmapSession } from "@/jmap/types";
 

web/src/lib/notify/notify.ts

@@ -1,4 +1,4 @@
-import { withBase } from "./basePath";
+import { withBase } from "../basePath";
 
 let baseTitle = "ihasmail";
 let faviconCanvas: HTMLCanvasElement | null = null;

web/src/lib/notify/webpushEnable.ts

@@ -6,8 +6,8 @@
  * permission prompt, none of which exists under a test runner.
  */
 import { CAP } from "@/jmap/client";
-import { withBase } from "./basePath";
-import { SW_CACHE_NAME } from "./swCache";
+import { withBase } from "../basePath";
+import { SW_CACHE_NAME } from "../sw/swCache";
 import { isDeviceTrusted } from "@/lib/storage";
 import { useSession } from "@/store/session";
 import { useMail } from "@/store/mail";
@@ -25,7 +25,7 @@ import {
   unsubscribeThisDevice,
   verifySubscription,
   webPushAvailable,
-} from "@/lib/webpush";
+} from "@/lib/notify/webpush";
 
 let listening = false;
 

web/src/lib/shareTarget.ts

@@ -12,7 +12,7 @@
  * has to find the payload lying somewhere.
  */
 import { withBase } from "./basePath";
-import { SW_CACHE_NAME } from "./swCache";
+import { SW_CACHE_NAME } from "./sw/swCache";
 
 export interface SharedContent {
   title: string;

web/src/lib/sieve/sieve.ts

@@ -6,7 +6,7 @@
  * Sieve below each comment is what the server actually runs.
  */
 
-import { formatList } from "./datetime";
+import { formatList } from "../datetime";
 import { t } from "@/lib/i18n";
 
 export type HeaderOp = "contains" | "notcontains" | "is" | "notis" | "matches" | "notmatches" | "regex" | "notregex" | "exists" | "notexists";

web/src/lib/sieve/sieveApply.ts

@@ -7,7 +7,7 @@ import { client, chunk } from "@/jmap/client";
 import type { Email, GetResponse, Id, QueryResponse } from "@/jmap/types";
 import { LIST_PROPS, useMail } from "@/store/mail";
 import type { SieveRule, SieveTest } from "./sieve";
-import { domainOf } from "./address";
+import { domainOf } from "../address";
 
 function headerValues(e: Email, header: string): string[] {
   const h = header.toLowerCase();

web/src/lib/signatureHtml.ts

@@ -4,7 +4,7 @@
  *  - marker signatures: when still too big, the full HTML lives in Files and the
  *    identity only stores `<!--ihasmail:sig=<blobId>-->` + a plain-text fallback.
  */
-import { escapeHtml, htmlToText } from "./text";
+import { escapeHtml, htmlToText } from "./text/text";
 
 /**
  * Stalwart accepts a signature of `value.len() < 2048` — and that is Rust's

web/src/lib/sw/__tests__/staleBuild.test.ts

@@ -1,5 +1,5 @@
 import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
-import { reloadIfServerRebuilt, makeConnectionWatcher, startBuildWatch } from "@/lib/staleBuild";
+import { reloadIfServerRebuilt, makeConnectionWatcher, startBuildWatch } from "@/lib/sw/staleBuild";
 import { APP_VERSION } from "@/lib/version";
 
 function healthReplies(body: unknown, ok = true) {

web/src/lib/sw/__tests__/swFacts.test.ts

@@ -1,6 +1,6 @@
 import { afterEach, describe, expect, it, vi } from "vitest";
-import { publishWorkerFacts, FACTS_KEY, type WorkerFacts } from "@/lib/swFacts";
-import { SW_CACHE_NAME } from "@/lib/swCache";
+import { publishWorkerFacts, FACTS_KEY, type WorkerFacts } from "@/lib/sw/swFacts";
+import { SW_CACHE_NAME } from "@/lib/sw/swCache";
 import { setCatalog } from "@/lib/i18n";
 import { catalog as de } from "@/locales/de";
 

web/src/lib/sw/staleBuild.ts

@@ -1,5 +1,5 @@
-import { APP_VERSION } from "./version";
-import { withBase } from "./basePath";
+import { APP_VERSION } from "../version";
+import { withBase } from "../basePath";
 import { push, type PushState } from "@/jmap/push";
 
 /**

web/src/lib/sw/swFacts.ts

@@ -16,9 +16,9 @@
  * was installed, which is the same condition background notifications already
  * carry — a push subscription has to be renewed from a tab too.
  */
-import { withBase } from "./basePath";
+import { withBase } from "../basePath";
 import { SW_CACHE_NAME } from "./swCache";
-import { t } from "./i18n";
+import { t } from "../i18n";
 
 export const FACTS_KEY = "/ihasmail-worker-facts";
 

web/src/lib/templatePlaceholders.ts

@@ -18,7 +18,7 @@
  * so a template follows the same date order and clock the rest of the app was
  * told to use.
  */
-import { escapeHtml } from "./text";
+import { escapeHtml } from "./text/text";
 import { formatDate, formatClock } from "./datetime";
 import type { EmailAddress } from "@/jmap/types";
 

web/src/lib/text/__tests__/emlName.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { emlFilename, sanitizeFilename } from "@/lib/emlName";
+import { emlFilename, sanitizeFilename } from "@/lib/text/emlName";
 
 describe("emlFilename", () => {
   it("keeps an ordinary subject, with spaces as underscores", () => {

web/src/lib/text/__tests__/markdown.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { isMarkdown, renderMarkdown } from "@/lib/markdown";
+import { isMarkdown, renderMarkdown } from "@/lib/text/markdown";
 
 describe("isMarkdown", () => {
   it("takes the type when there is one", () => {