fix(header): align publish and VIP CTAs with reference theme

The top-nav publish chip and open-membership chip carried an AKSRT-only
class layer (navbar-cta / navbar-cta-text / navbar-newposts /
navbar-vip-hover) plus a matching set of CSS overrides that replaced the
legacy .but geometry: margin 0.4em -> 0, an extra min-height and flex gap,
an FA5 pencil glyph that is not the reference pencil, and label text
wrapped in a span. The VIP hover card also had its own positioning
override instead of the reference static position.

Drop that layer and emit the reference class combination verbatim so the
already byte-identical legacy stylesheet owns the geometry again:

- publish chip renders newadd-btns but nowave <skin> [radius] btn-newadd
  with the label echoed as saved (no injected icon, no span)
- VIP chip renders pay-vip|signin-loader but jb-red radius payvip-icon
  with the vip_1 SVG at em12 mr3, inside span.hover-show.inline-block
- user-card CTA uses the vip_1 SVG (em12 mr6) instead of fa-gem and drops
  vip-level, matching zib_get_header_payvip_icon()
- both buttons now honour Settings::close_sign(), matching the reference
  zib_is_close_sign() gate and the floating publish button
- header-userbox.css keeps one rule that restores the hover wrapper to a
  plain block container so .sub-vip-card takes its reference static
  position; every other override is gone
- nav_newposts_text default drops the duplicated fas and uses the FA5
  spelling of the reference pencil (fa-pencil-alt, not fa-pen)

Dead code removed: aksrt_normalize_header_cta_label(), the unreachable
multi-type dropdown branch of aksrt_render_new_add_btns() (only 'post' is
supported and only ['post'] is ever passed), and the
newadd-btns__toggle / newadd-btns__item / drop-newadd markup it emitted.

ml10 is no longer set on the VIP anchor: .aksrt-navbar-actions already
supplies the 10px gap the reference gets from ml10, and keeping both
would double it to 20px.

No migration for sites that already stored the old nav_newposts_text.

Verified: node --test across tests/ (603 passing), php -l on the changed
PHP files, and a stubbed render of every publish/VIP branch.

tests/widget-system/page-display-contract.test.cjs

@@ -120,6 +120,10 @@ test('defaults, nested structures, dependencies, and excluded product families a
   }
   assert.equal(headerMenuButtons.includes('nav_newposts_btns'), false)
   assert.match(headerMenuButtons, /aksrt_render_new_add_btns\(\['post'\], \$class, \$label\)/)
+  // FA5 spelling of the reference '<i class="fa fa-fw fa-pencil"></i>发布'
+  // default: fa-pencil does not exist in the bundled FA 5.15.4 free set.
+  assert.match(schema, /'nav_newposts_text', '按钮文案', 'textarea', '<i class="fa fas fa-fw fa-pencil-alt"><\/i>发布'/)
+  assert.doesNotMatch(schema, /fa fas fa-fw fas /)
 })
 
 test('VIP navigation purchase switches are saved and consumed end to end', () => {
@@ -136,8 +140,15 @@ test('VIP navigation purchase switches are saved and consumed end to end', () =>
 })
 
 test('header VIP hover cards match the legacy markup and style contract', () => {
-  assert.match(headerMenuButtons, /<span class="hover-show inline-block navbar-vip-hover">/)
-  assert.match(headerMenuButtons, /<div class="hover-show-con sub-menu sub-vip-card">/)
+  assert.match(headerMenuButtons, /<span class="hover-show inline-block">/)
+  assert.match(headerMenuButtons, /<div class="sub-menu hover-show-con sub-vip-card">/)
+  assert.match(headerMenuButtons, /'<a class="' \. esc_attr\(\$cls\) \. ' but jb-red radius payvip-icon" href="javascript:;">'/)
+  assert.match(headerMenuButtons, /<svg class="em12 mr3" aria-hidden="true"><use xlink:href="#icon-vip_1"><\/use><\/svg>'/)
+  assert.match(headerMenuButtons, /'<a rel="nofollow" class="newadd-btns ' \. esc_attr\(\$class\) \. ' btn-newadd"/)
+  assert.equal((headerMenuButtons.match(/Settings::close_sign\(\)/g) || []).length, 2)
+  for (const dead of ['navbar-cta', 'navbar-cta-text', 'navbar-newposts', 'navbar-vip-hover', 'newadd-btns__', 'vip-level', 'fa-gem']) {
+    assert.equal(headerMenuButtons.includes(dead), false, `AKSRT-only header CTA token remains: ${dead}`)
+  }
   assert.match(vipCardRenderer, /aksrt_get_lazy_attr\('lazy_other', \$icon_url, 'img-icon'\)/)
   assert.match(vipCardRenderer, /<div class=\"abs-center vip-baicon\"[^>]*>/)
   assert.match(vipCardRenderer, /<div class=\"vip-img abs-right\">/)
@@ -154,8 +165,21 @@ test('header VIP hover cards match the legacy markup and style contract', () =>
   assert.match(legacyMainCss, /\.sub-vip-card \.vip-card\s*\{[^}]*display:\s*inline-block;[^}]*width:\s*240px;[^}]*margin:\s*5px;/s)
   assert.match(legacyMainCss, /\.sub-vip-card \.vip-baicon\.abs-center\s*\{[^}]*font-size:\s*10em;[^}]*left:\s*55%;/s)
   assert.match(legacyMainCss, /\.sub-vip-card \.vip-img\s*\{[^}]*display:\s*none;/s)
-  assert.match(headerCss, /\.navbar-top \.aksrt-navbar-actions \.navbar-vip-hover\s*\{[^}]*align-self:\s*stretch;[^}]*overflow:\s*visible;/s)
-  assert.match(headerCss, /\.navbar-top \.aksrt-navbar-actions \.navbar-vip-hover > \.sub-vip-card\s*\{[^}]*top:\s*100%;[^}]*right:\s*0;[^}]*left:\s*auto;[^}]*max-width:\s*calc\(100vw - 24px\);/s)
+  // The hover wrapper must stay a plain block container so the legacy static
+  // position of .sub-vip-card matches the reference theme.
+  assert.match(headerCss, /\.navbar-top \.aksrt-navbar-actions > \.hover-show\s*\{[^}]*display:\s*inline-block;/s)
+  assert.doesNotMatch(headerCss, /\.navbar-cta|\.navbar-vip-hover/)
+  assert.match(legacyMainCss, /\.navbar-top \.navbar-right \.sub-menu\s*\{[^}]*right:\s*0;/s)
+})
+
+test('user card VIP CTA matches the reference zib_get_header_payvip_icon()', () => {
+  assert.match(headerUserbox, /'<a class="pay-vip but radius4 payvip-icon btn-block" href="javascript:;">'/)
+  assert.match(headerUserbox, /<svg class="em12 mr6" aria-hidden="true"><use xlink:href="#icon-vip_1"><\/use><\/svg>'/)
+  assert.match(headerUserbox, /esc_html__\('开通会员 尊享会员权益', 'aksrt'\)/)
+  for (const dead of ['fa-gem', 'vip-level']) {
+    assert.equal(headerUserbox.includes(dead), false, `AKSRT-only user card CTA token remains: ${dead}`)
+  }
+  assert.doesNotMatch(headerUserbox, /<span>' \. esc_html__\('开通会员 尊享会员权益'/)
 })
 
 test('VIP purchase modal matches legacy desktop-center and mobile-bottom positioning', () => {
@@ -327,8 +351,11 @@ test('desktop header actions share one row without generic button masks', () =>
   assert.doesNotMatch(headerNavbar, /class="btn nav-search-btn main-search-btn"/)
   assert.match(headerCss, /\.navbar-top \.aksrt-navbar-actions\s*\{[^}]*display:\s*flex;[^}]*align-items:\s*center;/s)
   assert.match(headerCss, /\.navbar-top \.aksrt-nav-icon,[\s\S]*?background:\s*transparent !important;/)
-  assert.match(headerCss, /\.navbar-top \.aksrt-navbar-actions \.navbar-cta\.radius\s*\{[^}]*border-radius:\s*50px;/s)
-  assert.match(headerCss, /\.navbar-top \.aksrt-navbar-actions \.navbar-cta > \.icon\s*\{[^}]*width:\s*1\.2em;[^}]*height:\s*1\.2em;[^}]*flex:\s*0 0 auto;/s)
+  // The publish and VIP chips ride the legacy .but geometry verbatim; nothing in
+  // the header module may restate their padding, margin, radius or icon size.
+  assert.match(legacyMainCss, /\.navbar-top \.navbar-but > \.but\s*\{[^}]*font-size:\s*0\.8em;[^}]*padding:\s*0\.3em 1em !important;[^}]*margin:\s*0\.4em;/s)
+  assert.doesNotMatch(headerCss, /\.navbar-cta|\.navbar-vip-hover/)
+  assert.match(headerCss, /\.navbar-top \.aksrt-navbar-actions\s*\{[^}]*gap:\s*10px;/s)
   assert.match(headerCss, /\.navbar-top \.aksrt-navbar-account > li\s*\{[^}]*position:\s*relative;/s)
   assert.match(headerCss, /\.navbar-top \.aksrt-navbar-account > li > \.sub-menu\s*\{[^}]*top:\s*calc\(100% \+ 5px\);[^}]*right:\s*0;/s)
 })