adventure: stop dropping dispatches Pete has no words for

An event_type with no template was a 400 at ingest. That reads like caution
and behaves like deletion: gogobee retries a 400 to its cap and then parks the
row forever, so rejecting a type Pete hadn't learned to phrase didn't defer the
event, it destroyed it.

companion_hire went that way. It has been emitted from `!expedition hire` since
the combat-engine work landed and has never once reached the site — the game
logged a successful emit every time, and the queue row simply never sent. The
mitigation on the books was "always deploy Pete first", which is a thing a
person has to remember rather than a property of the system.

So invert it. An unknown type now warns, gets counted, and publishes on a
neutral fallback. 400 is kept for facts that are actually invalid: no guid, or
a name that failed the fact-guard. gogobee can ship a new event type any day of
the week now; the worst case is a thin card until Pete learns the words.

It is thinner than it sounds in practice. gogobee authors dispatch prose from
the fact's fields with no per-type switch, so an unrecognised type still
arrives with a real headline and lede and is allowed to use them. The fallback
only shows through when the model is off or the prose-guard refused the output.

Untemplated types never post live to Matrix, whatever tier they claim. A thin
card among cards is cheap and reversible; pinging everyone in the room with a
dispatch Pete couldn't phrase is neither. The daily digest still carries it,
one line among many, which is the right volume for something we don't
understand yet.

And give companion_hire its template. Pete is the one being hired, so it is
first-person like his duels — third-person Pete filling in as a cleric reads as
somebody else reporting on him.

The admin status page grows a "dispatches with no template" panel, so the next
one of these is a to-do list Pete can see rather than an archaeology dig.

Claude-Session: https://claude.ai/code/session_012bxpQQJDjC1mTtLN3VVtBQ

internal/web/templates/status.html

@@ -27,6 +27,29 @@
   </div>
 </section>
 
+{{/* Adventure dispatch types gogobee sent that Pete has no template for. These
+     published on the neutral fallback — nothing was dropped — so this is a
+     vocabulary to-do, not an incident. Admin-only; absent when there are none. */}}
+{{if and $admin .UnknownAdv}}
+<section class="mb-8">
+  <div class="rounded-3xl bg-amber-500/10 border-2 border-amber-500/30 p-6">
+    <h2 class="font-display text-xl font-bold">Dispatches with no template</h2>
+    <p class="mt-1 text-sm text-[color:var(--ink)]/70 max-w-2xl">
+      gogobee sent these event types since the last restart and Pete published them on the
+      generic fallback. Nothing was lost — they just read thin until he learns the words.
+    </p>
+    <ul class="mt-3 flex flex-wrap gap-2">
+      {{range .UnknownAdv}}
+      <li class="inline-flex items-center gap-2 rounded-full bg-[color:var(--card)] border border-amber-500/40 px-3 py-1 text-sm">
+        <code class="font-mono">{{.EventType}}</code>
+        <span class="tabular-nums text-[color:var(--ink)]/60">×{{.Count}}</span>
+      </li>
+      {{end}}
+    </ul>
+  </div>
+</section>
+{{end}}
+
 <div class="overflow-x-auto rounded-3xl bg-[color:var(--card)] border-2 border-[color:var(--ink)]/10 shadow-pete">
   <table class="w-full {{if $admin}}min-w-[52rem]{{else}}min-w-[28rem]{{end}} text-sm">
     <thead>