T2.2 (part 2) - B1/S4/F2: delete the flat strip, unify the brand

Completes T2.2. The flat strip was #wp-usermenu, built in auth-guard.js and
appended to every bar: "Root . Admin . Users . Language & time . Password .
Sign out". It duplicated Admin, Users and Sign out from the drawer, and being
one unbreakable 412px run it was also the thing that clipped the bar at 390px.
Deleting it is what resolves F2 for real, exactly as the wave predicted.

Its two unique items moved into the drawer rather than being lost with it:
Language & time and Password now sit under an Account section. They open dialogs
rather than navigating, so they render as <button data-action>, not links -
which also removes three fake `<a href="#">` entries whose only job was to be
clicked. The creator's jump-link count goes 3 -> 0 for that reason. The drawer
closes before the dialog opens, so its scrim is not left over the thing you just
asked for. wpPreferences and wpChangePassword are untouched, so A7's
localization feature is intact - it moved, it did not go.

buildUserMenu, addLogoutPill, isDarkBg and the floating-pill fallback are all
gone; grep finds no reference to any of them. The fallback is not needed because
every signed-in page now mounts the drawer. The T1.2 interim went with them
rather than being layered on - the element it wrapped no longer exists.

Also removed the Field View's "Home" link, which the drawer's first entry and
the brand beside it both already offered, and replaced the creator's mono
wordmark with the shared logo chip. The creator was the only page in the suite
spelling "Prime Controls" out in monospace instead of showing the mark; its
.header-logo rule and the 480px override for it are deleted.

Deliberately kept: the launcher's Overview / Feedback / Help links. Those are
in-page anchors and a help dialog belonging to that page, not global navigation,
so they are not the strip and the drawer does not duplicate them.

Verified on all 6 pages at 390px and 1440px: no #wp-usermenu anywhere, no bar
control crossing the viewport edge at either width, the logo chip present on
every page including the creator, and the same 10-entry drawer everywhere. The
bar is back to 48px at 1440px on five of six pages. F2's probe reports the bar
at 2 rows instead of 4. Both migrated actions verified to open their real modals
(wp-prefs-modal, wp-pw-modal) with the drawer closed behind them.

browser_check 71/71. f_items: F1-F5 FIXED, F6 untouched.

T2.3 (B2, switcher breakpoints) is still open.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

html/wp-creation-styles.css

@@ -54,14 +54,17 @@
     z-index: 100;
     box-shadow: var(--shadow);
   }
-  .header-logo {
-    font-family: var(--mono);
-    font-size: 11px;
-    font-weight: 600;
-    letter-spacing: .15em;
-    color: var(--accent);
-    text-transform: uppercase;
+  /* The brand is the shared logo chip now, the same as every other page (T2.2).
+     .header-logo was this page's own mono wordmark - the one thing in the suite
+     that spelled "Prime Controls" out in monospace instead of showing the mark.
+     .wp-logo-chip comes from theme-light.css, which this page already loads. */
+  .header-logo-chip {
+    display: inline-flex;
+    align-items: center;
+    text-decoration: none;
+    flex-shrink: 0;
   }
+  .header-logo-chip:hover { opacity: .92; }
   .header-sep { color: var(--border-strong); }
   .header-title { font-size: 13px; font-weight: 500; color: var(--text-muted); }
 
@@ -553,7 +556,6 @@
     .cstatus button { padding:6px 8px; }
   }
   @media (max-width: 480px) {
-    .header-logo { font-size:14px; }
     .workstep-row textarea { font-size:16px; }  /* avoid iOS zoom */
     input, select, textarea { font-size:16px; } /* avoid iOS zoom on focus */
   }