fix(hub): the members table stops hanging off the side of a phone

`.admin-table` column heads are `white-space: nowrap`, which meets a
translated string: "Username" is one word, "Nom d'utilisateur" is three,
uppercased with letter-spacing on top. The heads alone overflowed a 360px
window by 11px, and on Android an overflowing document takes every sticky
element with it.

11px was only what could be measured: the probe served no members, so the
table measured its headers and nothing else. With one realistic username
in it the same page overflowed by 248px, at 420px-wide windows too. The
cells get `word-break: break-word`, as `.file-name` already had.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/CLAUDE.md b/CLAUDE.md
index 5463437..a7ecbca 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -492,6 +492,20 @@ do. Read them before writing anything that touches the same mechanism.
   `autofocus`, and Android's `interactive-widget` default splits the visual
   viewport from the layout one), which was plausible, cost a round trip, and
   was wrong; the screenshot showing no keyboard was already in hand.
+  **It came back on 2026-09-19, one table along, and the fixture hid most of
+  it again.** `.admin-table` overflowed a 360px window by 11px — from its
+  *column heads*, because `white-space: nowrap` met a translated string:
+  "Username" is one word and "Nom d'utilisateur" is three, uppercased with
+  letter-spacing on top. **A label's length is not yours to assume once it goes
+  through `t()`**, and a head that wraps onto two lines is legible where a
+  table the reader cannot reach the right of is not. The 11px was the whole of
+  what could be measured, because the probe served no members at all: an empty
+  table measures its headers and nothing else. With one realistic username in
+  it — no spaces to break at, a string somebody else chose — the same page
+  overflowed by **248px**, and at 420px-wide windows as well as 360. Same
+  lesson as the paragraph above, twice now: the wrapping rule belongs on every
+  cell that carries a name, and the fixture has to carry the names real data
+  has or it measures itself.
 
 - **Derived data that nothing persists is re-derived where somebody is
   watching.** `video_meta`, `photo_meta` and `thumbs` were durable; the audio