af507305 - Unblocks develop: refresh the external-link overlay baselines

[TaprootFreakAI]

EN:
Unblocks develop (prio 1): the four Visual jobs are red on develop itself, so every open PR targeting develop needs this stand to rebase onto.
The welcome overlay-external-link baselines were recorded before Gift moved to replies; the note under the overlay no longer shows a gift icon.
This replaces the four Linux baselines with the images the develop run produced.

DE:
Gibt develop frei (Prio 1): die vier Visual-Jobs sind auf develop selbst rot, und jeder andere offene PR mit Basis develop muss auf diesen Stand rebasen.
Die Baselines von welcome overlay-external-link wurden aufgenommen, bevor Gift auf Antworten wanderte; die Notiz unter dem Overlay zeigt kein Geschenk-Symbol mehr.
Der PR ersetzt die vier Linux-Baselines durch die Bilder aus dem develop-Lauf.

Details

• Failing test on develop a71d717c (release PR Release: develop -> main #272, all four projects): e2e/visual.spec.ts › welcome forum variants › welcome overlay-external-link, confined to the note action row (76 differing pixels in the light projects, 20 in the dark ones; shotScreen pins maxDiffPixelRatio: 0).
• The baselines came in with 01a0ae8f - Make note URLs clickable with an external-link warning #264, which was branched before 01a0abc5 - Move private messages to the profile; Gift only on replies #237 (Gift only on replies) and merged after it.
• Source of the new images: state-welcome-overlay-external-link-actual.png from the playwright-output-* artifacts of that develop run. No code, test or doc change.

[TaprootFreakAI]

EN:
Ready after 1 review pass.
Replaces the four stale welcome overlay-external-link Linux baselines so the Visual jobs on develop are green again.

DE:
Bereit nach 1 Review-Durchlauf.
Ersetzt die vier veralteten Linux-Baselines von welcome overlay-external-link, damit die Visual-Jobs auf develop wieder grün sind.

Details

• Both review dimensions reported 0 defects at 907c1a05. One remark concerned the PR description only (pixel counts per theme) and is corrected there.
• Cause confirmed from history and code: the baselines were recorded on the 01a0ae8f - Make note URLs clickable with an external-link warning #264 branch before 01a0abc5 - Move private messages to the profile; Gift only on replies #237 and carried unchanged into its squash commit; since 01a0abc5 - Move private messages to the profile; Gift only on replies #237 the Gift control renders only when message.parentId !== undefined, and the stubbed note of this variant is a top-level note.
• The old and new images differ only in a 58×14 px region of the note action row in all four projects; identical pixel counts across all retries rule out flakiness.
• Diff scope: exactly the four combos of this one variant, no code, test or doc change; the variant is already registered in scripts/screen-variants.mjs, src/lib/screen-variant-catalog.json, e2e/visual.spec.ts and the handbook.
• CI at the head: all six jobs green, including the four Visual projects. No review threads, mergeable.
• The same four images are part of 01a0abd6 - Put the closed Moderators group on /moderate #243 byte for byte, so whichever merges first leaves no conflict for the other.