simplify: prune dead code, dedup gmail send, drop neutered log stubs

- Remove no-op log stubs (logGmail, logAutomation, logSecurity, logSystem)
  and ~17 callsites; dead counters in tickets.js and gmail-poll.js go too
- Dedup three near-identical Gmail send paths into sendThreadedEmail helper
- Drop dead Mongoose fields: broccoliniTicketId, lastSyncedBroccoliniArticleId,
  renameCount, renameWindowStart, reminderSent, staffChannelId,
  unclaimedRemindersSent, lastMessageAuthorIsStaff
- Drop dead config fields and their .env.example entries
- Inline api/botClient.js (3-line wrapper, 2 callers)
- Trim unused exports across utils.js, tickets.js, configSchema.js, debugLog.js
- Fix handlers/messages.js to use isStaff() — old partial check ignored
  ADDITIONAL_STAFF_ROLES, so those members were treated as customers
- Drop unused deps p-queue + dotenv-expand; move mongodb to devDependencies

Net: -583 LOC source + -57 LOC lockfile. All 23 modules load clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

broccolini-discord.js

@@ -17,15 +17,8 @@ const { handleDiscordReply } = require('./handlers/messages');
 const { sendTicketClosedEmail } = require('./services/gmail');
 const { checkAutoClose, checkAutoUnclaim, reconcileDeletedTicketChannels, resumePendingDeletes } = require('./services/tickets');
 const { registerCommands } = require('./commands/register');
-// Holds a reference to the Discord client for the settings-site /internal/discord/guild lookup.
-const { setBot } = require('./api/botClient');
 const { poll } = require('./gmail-poll');
-const { setClient: setDebugClient, logError, logSystem } = require('./services/debugLog');
-
-// Re-export utilities for any external consumers
-const { sendGmailReply } = require('./services/gmail');
-const { getNextTicketNumber } = require('./services/tickets');
-const { getCleanBody, detectGame, stripEmailQuotes, stripMobileFooter, htmlToTextWithBlocks } = require('./utils');
+const { setClient: setDebugClient, logError } = require('./services/debugLog');
 
 let gmailPollInterval = null;
 // Track all background setInterval handles so shutdown can clear them.
@@ -179,7 +172,6 @@ client.once('ready', async () => {
   }
   await connectMongoDB(process.env.MONGODB_URI);
   setDebugClient(client);
-  setBot(client);
   const healthcheckHost = CONFIG.HEALTHCHECK_HOST || undefined;
   httpServer = app.listen(CONFIG.PORT, healthcheckHost, () => {
     console.log(`Healthcheck server listening on ${healthcheckHost || '*'}:${CONFIG.PORT}`);
@@ -229,18 +221,6 @@ client.once('ready', async () => {
   console.log('✓ Memory sweeps registered: every 6 hours (unref\'d)');
 
   console.log('✓ Discord bot ready. Tag:', client.user.tag);
-
-  logSystem('Bot online', [
-    { name: 'Guild', value: guild ? `${guild.name} (${guild.id})` : 'N/A' },
-    { name: 'Poll interval', value: `${CONFIG.GMAIL_POLL_INTERVAL_MS / 1000}s` },
-    { name: 'Auto-close', value: CONFIG.AUTO_CLOSE_ENABLED ? `enabled (${CONFIG.AUTO_CLOSE_AFTER_HOURS}h)` : 'disabled' },
-    { name: 'Auto-unclaim', value: CONFIG.AUTO_UNCLAIM_ENABLED ? `enabled (${CONFIG.AUTO_UNCLAIM_AFTER_HOURS}h)` : 'disabled' },
-    { name: 'Gmail log', value: CONFIG.GMAIL_LOG_CHANNEL_ID ? 'configured' : 'not configured' },
-    { name: 'Automation log', value: CONFIG.AUTOMATION_LOG_CHANNEL_ID ? 'configured' : 'not configured' },
-    { name: 'Staff threads', value: CONFIG.STAFF_THREAD_ENABLED ? `enabled (name: "${CONFIG.STAFF_THREAD_NAME}")` : 'disabled' },
-    { name: 'Pin initial message', value: CONFIG.PIN_INITIAL_MESSAGE_ENABLED ? 'enabled' : 'disabled' },
-    { name: 'Pin escalation message', value: CONFIG.PIN_ESCALATION_MESSAGE_ENABLED ? 'enabled' : 'disabled' }
-  ]).catch(() => {});
 });
 
 client.login(CONFIG.DISCORD_TOKEN);
@@ -284,10 +264,7 @@ let shuttingDown = false;
 async function handleShutdown(signal) {
   if (shuttingDown) return;
   shuttingDown = true;
-  await Promise.race([
-    logSystem('Bot shutting down', [{ name: 'Signal', value: signal }]),
-    new Promise(r => setTimeout(r, 2000))
-  ]);
+  console.log(`Bot shutting down (${signal})`);
   for (const handle of activeIntervals) {
     try { clearInterval(handle); } catch (_) {}
   }
@@ -313,13 +290,5 @@ module.exports = {
   client,
   setGmailPollInterval,
   clearGmailPollInterval,
-  trackTimeout,
-  sendGmailReply,
-  sendTicketClosedEmail,
-  getNextTicketNumber,
-  getCleanBody,
-  detectGame,
-  stripEmailQuotes,
-  stripMobileFooter,
-  htmlToTextWithBlocks
+  trackTimeout
 };