refactor: replace old bot code with Matrix infra configs and scripts

- Remove obsolete Python bot (Wordle, commands, callbacks, welcome)
- Add hookshot/ — all 11 webhook transformation functions + deploy.sh
- Add cinny/ — config.json and dev-update.sh (nightly dev branch build)
- Add landing/ — matrix.lotusguild.org landing page HTML
- Add systemd/ — livekit-server, draupnir, cinny cron unit files
- Add draupnir/ — production config (access token redacted)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

hookshot/proxmox.js

@@ -0,0 +1,18 @@
+var embed = (data.embeds && data.embeds[0]) || {};
+var title = embed.title || 'Proxmox Notification';
+var description = embed.description || '';
+var fields = embed.fields || [];
+var fieldMap = {};
+fields.forEach(function(f) { fieldMap[f.name] = f.value; });
+var severity = (fieldMap['Severity'] || 'info').toLowerCase();
+var node = fieldMap['Node'] || '';
+var type = fieldMap['Type'] || '';
+var vmid = fieldMap['VM/CT ID'] || '';
+var emoji = severity === 'error' ? '🔴' : (severity === 'warning' ? '🟡' : 'ℹ️');
+var lines = [emoji + ' ' + title];
+var htmlParts = ['<b>' + emoji + ' ' + title + '</b>'];
+if (node) { lines.push('\uD83D\uDDA5\uFE0F Node: ' + node); htmlParts.push('\uD83D\uDDA5\uFE0F Node: <b>' + node + '</b>'); }
+if (type) { lines.push('\uD83D\uDCCB Type: ' + type); htmlParts.push('\uD83D\uDCCB Type: ' + type); }
+if (vmid && vmid !== 'N/A') { lines.push('\uD83D\uDD32 VM/CT: ' + vmid); htmlParts.push('\uD83D\uDD32 VM/CT: ' + vmid); }
+if (description) { lines.push(description); htmlParts.push(description); }
+result = { version: 'v2', plain: lines.join('\n'), html: htmlParts.join('<br>'), msgtype: 'm.notice' };