Stage 10: admin console & dictionary ops (complaint review, hot-reload, broadcasts) (#11)

backend/internal/adminconsole/templates/pages/broadcast.gohtml

@@ -0,0 +1,14 @@
+{{define "content" -}}
+<h1>Broadcast</h1>
+{{with .Data}}
+<section class="panel"><h2>Post to the game channel</h2>
+{{if .ConnectorEnabled}}
+<form class="form col" method="post" action="/_gm/broadcast">
+<label>Message <textarea name="text" required></textarea></label>
+<div><button type="submit">Post to channel</button></div>
+</form>
+{{else}}<p class="note">connector not configured (set BACKEND_CONNECTOR_ADDR)</p>{{end}}
+</section>
+<p class="note">To message a single user, open their <a href="/_gm/users">user page</a>.</p>
+{{end}}
+{{- end}}