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>

cinny/dev-update.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+# Cinny dev branch nightly build and deploy
+set -e
+
+REPO_DIR="/opt/cinny-dev"
+WEB_ROOT="/var/www/html"
+CONFIG_SAVED="/opt/cinny-dev/.cinny-config.json"
+BUILD_DIR="/opt/cinny-dev/dist"
+LOG="/var/log/cinny-dev-update.log"
+
+exec >> "$LOG" 2>&1
+echo "=== $(date) === Starting Cinny dev update ==="
+
+# Save config from live site (skip if web root is already broken)
+if [ -f "$WEB_ROOT/config.json" ]; then
+    cp "$WEB_ROOT/config.json" "$CONFIG_SAVED"
+fi
+
+# Pull latest dev
+cd "$REPO_DIR"
+git fetch --depth=1 origin dev
+PREV=$(git rev-parse HEAD)
+git reset --hard origin/dev
+NEW=$(git rev-parse HEAD)
+
+if [ "$PREV" = "$NEW" ]; then
+    echo "No changes since last build ($NEW), skipping."
+    exit 0
+fi
+
+echo "New commits since $PREV, building $NEW..."
+
+# Clean previous dist so stale files don't get deployed on partial build
+rm -rf "$BUILD_DIR"
+
+# Build — cap at 896MB to stay within 1GB RAM + swap headroom
+export NODE_OPTIONS='--max_old_space_size=896'
+npm ci 2>&1 | tail -5
+npm run build 2>&1 | tail -10
+
+# Verify build actually produced output before touching web root
+if [ ! -f "$BUILD_DIR/index.html" ]; then
+    echo "ERROR: Build failed — dist/index.html missing. Web root untouched."
+    exit 1
+fi
+
+# Deploy only now that we know the build succeeded
+rm -rf "$WEB_ROOT"/*
+cp -r "$BUILD_DIR"/* "$WEB_ROOT/"
+
+# Restore config
+if [ -f "$CONFIG_SAVED" ]; then
+    cp "$CONFIG_SAVED" "$WEB_ROOT/config.json"
+else
+    echo "WARNING: No saved config found — default config from build will be used."
+fi
+
+nginx -s reload
+echo "=== Deploy complete: $NEW ==="