Fix L26: consolidate drag-drop URL extraction into shared urlHelpers

firstUrl() in DownloadBar was a local duplicate of looksLikeUrl iteration
(scanning multi-line text for the first valid URL). Promoted to
firstUrlInText() in src/renderer/src/lib/urlHelpers.ts alongside the other
URL utilities, re-exported from useClipboardLink.ts. DownloadBar now imports
firstUrlInText from there instead of maintaining a local copy.

typecheck + 242 tests green.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

CODE-AUDIT.md

@@ -429,7 +429,7 @@ token system + shared primitives (UI/SIMP — high value, larger effort) · i18n
 - [x] **L25 — Taskbar effect over-fires.** `App.tsx` subscribes to the whole downloads store and
   recomputes `summarizeQueue` + sends the taskbar IPC on *every* store change (each progress
   tick); throttle or dedupe by computed value.
-- [ ] **L26 — Third URL-sniffing path.** DownloadBar's drag-drop `firstUrl` is a separate
+- [x] **L26 — Third URL-sniffing path.** DownloadBar's drag-drop `firstUrl` is a separate
   "first http(s) line" extractor alongside `useClipboardLink.looksLikeUrl` and deeplink's scan.
 - [x] **L27 — DownloadBar Enter probes, not downloads.** Enter in the URL field triggers
   `fetchFormats`; there's no keyboard path to actually start the download (LibraryView's Enter

src/renderer/src/components/DownloadBar.tsx

@@ -37,19 +37,10 @@ import { Hint } from './Hint'
 import { SegmentedControl } from './ui/SegmentedControl'
 import { IconButton } from './ui/IconButton'
 import { parseUrlShortcutContent } from '@shared/ipc'
-import { useClipboardLink, looksLikeUrl } from '../useClipboardLink'
+import { useClipboardLink, looksLikeUrl, firstUrlInText } from '../useClipboardLink'
 import { logError } from '../reportError'
 import { THUMB_LG } from '../thumbSizes'
 
-/** First http(s) URL in a blob of dropped text (one per line; '#' comments skipped). */
-function firstUrl(text: string): string | null {
-  for (const raw of text.split(/\r?\n/)) {
-    const line = raw.trim()
-    if (!line || line.startsWith('#')) continue
-    if (looksLikeUrl(line)) return line
-  }
-  return null
-}
 
 /** Pull the URL= target out of a dropped Windows .url Internet Shortcut file. */
 function parseUrlFile(content: string): string | null {
@@ -299,7 +290,7 @@ export function DownloadBar(): React.JSX.Element {
     e.preventDefault()
     setDragActive(false)
     const dt = e.dataTransfer
-    const fromText = firstUrl(dt.getData('text/uri-list') || dt.getData('text/plain') || '')
+    const fromText = firstUrlInText(dt.getData('text/uri-list') || dt.getData('text/plain') || '')
     if (fromText) {
       onUrlChange(fromText)
       return

src/renderer/src/lib/urlHelpers.ts

@@ -35,3 +35,17 @@ export function looksLikeSingleVideo(text: string): boolean {
   }
   return false
 }
+
+/**
+ * Return the first http(s) URL from a multi-line blob of text.
+ * Lines are trimmed; '#' comment lines are skipped.
+ * Used for clipboard paste and drag-drop text.
+ */
+export function firstUrlInText(text: string): string | null {
+  for (const raw of text.split(/\r?\n/)) {
+    const line = raw.trim()
+    if (!line || line.startsWith('#')) continue
+    if (looksLikeUrl(line)) return line
+  }
+  return null
+}

src/renderer/src/useClipboardLink.ts

@@ -3,7 +3,7 @@ import { useSettings } from './store/settings'
 // Pure URL helpers extracted to a standalone module so they can be tested
 // without pulling in the Zustand store (L40). Re-exported here for existing
 // consumers (DownloadBar, LibraryView) without an import-path change.
-export { looksLikeUrl, looksLikeSingleVideo } from './lib/urlHelpers'
+export { looksLikeUrl, looksLikeSingleVideo, firstUrlInText } from './lib/urlHelpers'
 import { looksLikeUrl } from './lib/urlHelpers'
 
 /** Where an offered link came from — drives the banner's wording. */