feat(rust): chat titles, BetterChat group styles, the voice and popups (phase 17)

PLAN.md §33, D134-D143. Protocol 12.

- Chat titles (D135-D137): per-server rules (stat, top N, text, colour)
  that rank the current wipe, and a mode (first | all | up to N). Worked
  out once in model/titles and read three ways: pushed whole to the game by
  a new titleSync loop (on change, restart or wipe), and on every
  leaderboard row as `titles`. Admin: PUT /servers/:id/titles.
- Group styles (D138, D139): a site group may carry all twelve BetterChat
  fields (rust_perm_group_chat). They ride perm.sync with `expect` from the
  pushed ledger, which gains a value column; a field changed in game is a
  `chat-field` drift row with the game's value, adopted into the style or
  put back. A withdrawn style is one `chat-group` retirement, never for
  `default`, cleared from the ledger only once BetterChat removed it.
- The voice (D140): one fleet setting naming a styled group; news and
  rust.announce chat lines carry its format and the plugin says them with
  no sender. Admin: GET/PUT /voice.
- Popups (D141, D142): rust.announce gains `delivery` (still version 1,
  from rust.options.delivery); each server gains news_delivery beside the
  news switch; `popup-unavailable` is not retried.
- GET /servers/:id/integrations reads, live, which optional mods a server
  has loaded. README lists BetterChat and PopupNotifications as optional.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E14m6SuuY6i1vASFeGDBeY

client/src/components/Leaderboard.jsx

@@ -12,7 +12,7 @@
 
 import { ErrorState, Loading, useAsync } from '../core.js'
 import Empty from './Empty.jsx'
-import { ago, count, duration, shortId } from '../lib/format.js'
+import { ago, contrastInk, count, duration, shortId } from '../lib/format.js'
 import api from '../api.js'
 
 // `sort` is the API's own vocabulary (`kills`, `deaths`, `npcKills`, `playtime`),
@@ -101,6 +101,26 @@ export default function Leaderboard({ serverId, wipeId, sort, onSort }) {
                     of their id rather than as a blank: the row is real, and a
                     nameless one reads as a rendering fault. */}
                 <strong style={{ color: 'var(--ink)' }}>{row.name || shortId(row.steamId)}</strong>
+                {/* The chat titles this player holds now (phase 17, D137) — the
+                    same ones the game shows, ranked on the current wipe whichever
+                    wipe this table is showing. Absent on an older module. */}
+                {(row.titles || []).map((title, i) => (
+                  <span
+                    key={`${title.text}-${i}`}
+                    className="sans"
+                    style={{
+                      marginLeft: 6,
+                      padding: '1px 6px',
+                      borderRadius: 999,
+                      fontSize: '0.7rem',
+                      fontWeight: 600,
+                      background: title.color,
+                      color: contrastInk(title.color),
+                    }}
+                  >
+                    {title.text}
+                  </span>
+                ))}
               </td>
               {COLUMNS.map((column) => (
                 <td key={column.key} style={{ ...cell, textAlign: 'right' }}>