marketing/facebook: the phone check ran after all — the cover IS cut on phones (R-919)

Your suggestion to use DevTools device mode was right; "cannot be checked" was
too quick a conclusion. On an emulated Pixel 9 (412x924, mobile UA, with a
reload so Facebook serves the mobile bundle) the Page's mobile header renders
412x274 = 1.504:1. Facebook keeps the cover's full height and shows only the
centre 938 px of its 1640 px width -- 351 px off each side. build.py's safe
area leaves 306 px clear per side, 45 px too few, and the light text in
cover-c.png runs x333..x997 against a left crop edge of x351, so 18 px are lost:
the headline reads "aját szabályaid" and the wordmark "elhom.eu" on every phone.

Nothing re-cropped on Facebook (the task's fence). The fix is build.py's safe
area (<=938 px, ~900 for margin) plus the measured 172 px centred phone profile
circle, then a hand re-upload. R-919 opened; R-918 closed and moved to
CLOSED-ITEMS with the recipe that made the check possible.

Meta's help page is wrong about Meta's own rendering: it states 2.4:1 for the
mobile cover where the header measures 1.504:1, so this session's first-pass
arithmetic -- explicitly labelled arithmetic, not a check -- under-predicted the
crop about fivefold. That is recorded rather than quietly deleted.

Also: the evidence secret scan needed --exclude=README.md, because that README
quotes the search strings and was matching itself (4 false EAA hits, 1 false
access_token); with the exclusion, control 1 -> 0 and no real hit. And the
Business & legal section header was already miscounted before this session
(said 9/P2 4, actually held 10/P2 5) -- corrected; five other section headers
drift too and are named in the report, left for a session that owns the register.

STATUS.md

@@ -19,10 +19,15 @@
   Suite, not in the settings. The best use for it is to publish it as the Page's first post once the app is „Live"
   (below). If you do nothing: the Page carries only the short introduction, which is fine, and the long text waits
   in the file.
-- **The pictures look right on a computer** — the cover is shown whole, nothing is cut, and the round profile
-  picture does not cover it. **Nobody has checked the Page on a phone.** A desktop browser cannot show Facebook's
-  phone layout, so it needs a real phone: open facebook.com/felhom.eu on yours and tell me whether the headline
-  and „felhom.eu" on the cover are whole.
+- **On a computer the pictures look right** — the cover is shown whole, nothing is cut, and the round profile
+  picture does not cover it.
+- **On a phone the cover is cut, and we should fix it (needs a short job from me, then 2 minutes from you).**
+  Facebook shows phones only the middle 57 % of the cover's width. That is narrower than we built for, so the
+  first letter of a line is lost: the cover reads „aját szabályaid" instead of „saját szabályaid", and „elhom.eu"
+  instead of „felhom.eu". Nobody saw this before because a normal browser window cannot show Facebook's phone
+  layout; it took a phone simulator. I did **not** re-crop anything on Facebook. The fix is to rebuild the covers
+  with a narrower safe middle, then you upload the new one by hand. If you do nothing: every phone visitor sees
+  the cut headline.
 - **Before real posts:** switch the Meta app to „Live". It needs a Terms of Service web address (the legal pages
   item). If you do nothing: posts are seen only by people with a role on the app.
 - **When you have time:** the logo needs a clean vector copy, made on the machine that has its fonts. If you do