feat(rust): the permission manager — the site owns the whole store (D160-D163, D188-D198)

PLAN_REDESIGNS section 1.

- Every sync reads the store (perm.inventory), reconciles it against the
  site's record and its ledger, and pushes. A change made in the game is
  settled by the server's policy (D161): auto-adopt (default), adopt, or
  revoke. The first read of a server imports everything (D198).
- Groups belong to one server unless an admin shares them (D189), in new
  id-keyed tables; the old ones are copied once at boot and left unread.
  Holders may be a Steam account nobody linked (D188).
- An in-game change affects that server only (D190): a grant that reaches
  further gains an exception, a shared group is split.
- Never judged: a permission the server does not register right now (an
  unloaded plugin is not a revocation), and a pair an event lease holds.
- A new admin API (server view, grant/revoke with everywhere-or-here,
  groups by id, share/split, members, drift answers) and a screen on
  PermissionsManager's flow with a state on every toggle (D162, D163, U-1).
- The announcement voice names a group by id; old name settings still read.

Walked on both rigs against the walk core: import on an existing install,
auto-adopt of a grant and a revoke, a fleet grant's exception, Kits
unloaded without loss, a shared group split, adopt and revoke policies.
Server 420/420, client 58/58, swagger, imports and route manifest current.

Refs #21

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

client/src/routes/admin/ChatTitles.jsx

@@ -196,13 +196,15 @@ export function VoiceCard() {
         Say them as
         <select value={data.voice} onChange={(e) => choose(e.target.value)} disabled={busy} style={inputStyle}>
           <option value="">Plain chat</option>
-          {data.options.map((o) => <option key={o.group} value={o.group}>{o.group} — {o.title}</option>)}
+          {data.options.map((o) => (
+            <option key={o.group} value={o.group}>{o.name} — {o.title} ({o.where})</option>
+          ))}
         </select>
       </label>
       {data.voice && !current && (
         <p style={{ color: '#d08a2a', fontSize: '0.78rem', margin: '8px 0 0' }}>
-          The group “{data.voice}” no longer has a chat style, so lines are said in plain chat until it has one again or
-          another voice is chosen.
+          The chosen group no longer has a chat style, so lines are said in plain chat until it has one again or another
+          voice is chosen.
         </p>
       )}
       {current && <p className="dim" style={{ fontSize: '0.74rem', margin: '8px 0 0' }}>The line: <code>{current.format}</code></p>}