docs: fix placeholder URLs in QUICKSTART; add committed example scripts

QUICKSTART.md had the author's personal domain as the example anchor URL
(wss://waste.dev.xplwd.com/ws) which would confuse anyone reading it.
Replaced with wss://YOUR_ANCHOR_DOMAIN/ws and added a new Option 3
section explaining the example scripts.

Added committed *.example versions of the four local-workflow scripts
(launch-tui, launch-web, deploy-web, serve-web). The real filenames are
gitignored so local edits (HOST, ANCHOR, etc.) are never accidentally
committed; the .example files serve as templates users copy once.
Each script fails fast if the placeholder URL/host is still set.

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

deploy-web.sh.example

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+# deploy-web.sh — build and push the web UI to the VPS.
+# Assumes SSH agent forwarding is set up.
+#
+# SETUP: copy this file to deploy-web.sh (gitignored) and set HOST below.
+#
+# Usage:
+#   ./deploy-web.sh
+#
+# Optional env vars:
+#   HOST        SSH target (user@host)  (required — edit below)
+#   REMOTE_DIR  path on VPS            (default: ~/waste-www)
+
+set -euo pipefail
+
+HOST="${HOST:-user@YOUR_VPS_IP}"           # ← edit this
+REMOTE_DIR="${REMOTE_DIR:-~/waste-www}"
+
+if [[ "$HOST" == *YOUR_VPS_IP* ]]; then
+    echo "error: edit HOST in this script (or export HOST=user@your-vps before running)" >&2
+    exit 1
+fi
+
+echo "→ building web UI…"
+"$(dirname "$0")/build-web.sh"
+
+echo "→ syncing to $HOST:$REMOTE_DIR"
+rsync -azv --delete \
+    --exclude='config.js' \
+    web/dist/ "$HOST:$REMOTE_DIR/"
+
+echo "✓ done"