v0.165.1: native Megosztás… button in the share modal (Web Share API)

Feature-detected navigator.share opens the OS share sheet with title+text+URL only
(no QR files: — narrow support drops the URL when given file+URL). Hidden unless
supported; Link másolása stays the universal fallback and catches the non-cancel
rejection; AbortError is silent. Template JS + tests only. 2 red-proofs verified red.

CONTEXT.md

@@ -7,7 +7,16 @@
 >
 > Ask Claude Code: "Please update CONTEXT.md with what we did today"
 
-Last updated: 2026-07-24 (v0.165.0 — Indítópult megosztása: guest launcher via capability URL /s/<token>, optional share password, QR)
+Last updated: 2026-07-24 (v0.165.1 — native "Megosztás…" button in the share modal via the Web Share API)
+
+> **2026-07-24 — v0.165.1 (native "Megosztás…" in the share modal, Web Share API).** The share modal
+> gains a feature-detected `navigator.share` button (OS share sheet → Messenger/WhatsApp/email),
+> sending **title + text + URL only**. Hidden unless supported; "Link másolása" stays the universal
+> fallback (and catches the non-cancel rejection); `AbortError` (user cancel) is silent. **Ruling: the
+> QR is NOT attached** (no Web Share Level-2 `files:`) — file-share support is narrow and several
+> targets drop the URL when handed file+URL, leaving an unscannable QR picture in a chat; the QR's job
+> (physical cross-device scanning) is already served by the modal image (mobile long-press). Template
+> JS + tests only; the OS sheet interaction is an operator manual check (not endpoint-testable).
 
 > **2026-07-24 — v0.165.0 (Indítópult megosztása — guest launcher via capability URL).** The admin
 > launcher gets an "Indítópult megosztása" button that mints a **capability URL**