web: fix chat (#800)

* chore: add guardrails

* docs: fix meshcore badge

* web: life chat message cap at 1000 in frontend

* web: honor protocol in chat

* web: deprioritize test channels

* fix ci

scripts/check-license-headers.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+# Copyright © 2025-26 l5yth & contributors
+# Licensed under the Apache License, Version 2.0 (see LICENSE)
+#
+# Fail if any tracked source or comment-capable config file is missing the
+# exact Apache notice mandated by CLAUDE.md and ACCEPTANCE.md (check B4).
+set -euo pipefail
+
+NOTICE='Copyright © 2025-26 l5yth & contributors'
+
+missing=$(git ls-files \
+    '*.rb' '*.py' '*.js' '*.rs' '*.dart' \
+    '*.yml' '*.yaml' '*.toml' '*.sh' '*.nix' 'Dockerfile' '*/Dockerfile' \
+  | grep -vE '(^|/)(vendor|node_modules|build|\.dart_tool)/' \
+  | xargs grep -L "$NOTICE" || true)
+
+if [ -n "$missing" ]; then
+  echo "Files missing the Apache notice ('${NOTICE}'):"
+  echo "$missing"
+  exit 1
+fi
+echo "All checked files carry the Apache notice."