Move webhook pages to /hook/ID and inbound URLs to /h/UUID (closes #367)

The webhook page and everything under it move from /source/ID to /hook/ID; the list and new-webhook form from /sources to /hooks and /hooks/new; the event log from .../logs to /hook/ID/events; entrypoint URLs, the ones senders post to, from /webhook/UUID to /h/UUID. The old paths are simply gone, per the owner's ruling. Every link, redirect, form action, test, comment and README mention follows; every link to the event log, and its title and heading, read "Full Event Log".

Keeping the UUID out of logs, metrics labels and error reports, and the receiver rate limits, key on the route itself, so they cover /h/ unchanged. Routed tests follow every link and form the pages render to a moved page.

Model: opus-5-5

templates/sources_list.html

@@ -6,7 +6,7 @@
 <div class="max-w-6xl mx-auto px-6 py-8">
     <div class="flex justify-between items-center mb-6">
         <h1 class="text-2xl font-medium text-gray-900">Webhooks</h1>
-        <a href="/sources/new" class="btn-primary">
+        <a href="/hooks/new" class="btn-primary">
             <svg class="w-5 h-5 mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                 <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 4v16m8-8H4"/>
             </svg>
@@ -17,7 +17,7 @@
     {{if .Webhooks}}
     <div class="grid gap-4">
         {{range .Webhooks}}
-        <a href="/source/{{.ID}}" class="card-elevated p-6 block">
+        <a href="/hook/{{.ID}}" class="card-elevated p-6 block">
             <div class="flex justify-between items-start">
                 <div>
                     <h2 class="text-lg font-medium text-gray-900">{{.Name}}</h2>
@@ -42,7 +42,7 @@
         </svg>
         <h2 class="text-lg font-medium text-gray-900 mb-2">No webhooks yet</h2>
         <p class="text-gray-500 mb-6">Create your first webhook to start receiving and forwarding events.</p>
-        <a href="/sources/new" class="btn-primary">Create Webhook</a>
+        <a href="/hooks/new" class="btn-primary">Create Webhook</a>
     </div>
     {{end}}
 </div>