fix(WP-0014): pre-flight compilation fixes, Tailwind pipeline, and admin seed

A2 — Compilation fixes:
- Remove inline FK constraints from Schema.sql; IHP schema compiler cannot
  parse them. Add 1744329600-restore-fk-constraints.sql migration to restore
  referential integrity at the DB level.
- Rename `#label` → `#label_` throughout to avoid clash with Haskell built-in.
- Fix `hub.id == hid` UUID comparisons to use `toUUID hub.id`.
- Replace non-existent `setStatus`/`respondJson` calls with
  `renderJsonWithStatusCode` throughout Api controllers.
- Fix qualified package import for `cryptohash-sha256` in Auth.hs.
- Add `CanSelect (Text, Text)` instance in Helper.View.
- Refactor HSX inline lambdas to named helper functions in 100+ views
  (GHC cannot infer types for anonymous functions inside quasi-quoted HSX).
- Fix missing imports (IHP.QueryBuilder, IHP.Fetch, Web.Routes, Only, etc.)
  across helpers and controllers.
- Remove duplicate `diffUTCTime` definition in BottleneckDetector.
- Change `createEventForHub` return type from `IO ResponseReceived` to `IO ()`.
- Seed type-registry vocabulary via 1744502400-seed-type-registries.sql
  (moved from Schema.sql where IHP does not execute INSERT statements).

A3 — Tailwind build pipeline:
- Add `tailwindcss` to flake.nix native packages.
- Uncomment `tailwind.exec` process in devenv shell config.
- Add tailwind/tailwind.config.js (scans Web/View/**/*.hs).
- Add tailwind/app.css with @tailwind directives.

A4 — Admin user seed:
- Add 1744416000-seed-admin-user.sql: inserts admin@inter-hub.local
  with bcrypt-hashed password admin1234! (cost 10).
- Add .env.example documenting all required environment variables
  and default admin credentials.

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

Web/View/ApiConsumers/New.hs

@@ -4,6 +4,7 @@ import Web.Types
 import Generated.Types
 import IHP.Prelude
 import IHP.ViewPrelude
+import Web.Routes ()
 
 data NewView = NewView
     { consumer  :: !ApiConsumer
@@ -15,14 +16,14 @@ instance View NewView where
         <div class="max-w-lg">
             <h1 class="text-2xl font-semibold mb-6">New API Consumer</h1>
             <form method="POST" action={CreateApiConsumerAction} class="space-y-4">
-                {hiddenField #id}
+                <input type="hidden" name="id" value={show consumer.id} />
                 <div>
                     <label class="block text-sm font-medium text-gray-700 mb-1">Name *</label>
-                    {textField #name}
+                    <input type="text" name="name" value={consumer.name} class="border rounded px-3 py-2 text-sm w-full" />
                 </div>
                 <div>
                     <label class="block text-sm font-medium text-gray-700 mb-1">Description</label>
-                    {textareaField #description}
+                    <textarea name="description" class="border rounded px-3 py-2 text-sm w-full" rows="3">{maybe "" id consumer.description}</textarea>
                 </div>
                 <div>
                     <label class="block text-sm font-medium text-gray-700 mb-1">Linked Hub Manifest (optional)</label>
@@ -35,11 +36,11 @@ instance View NewView where
                 <div class="grid grid-cols-2 gap-4">
                     <div>
                         <label class="block text-sm font-medium text-gray-700 mb-1">Rate Limit (req/min)</label>
-                        {numberField #rateLimitPerMinute}
+                        <input type="number" name="rateLimitPerMinute" value={maybe "" show consumer.rateLimitPerMinute} class="border rounded px-3 py-2 text-sm w-full" />
                     </div>
                     <div>
                         <label class="block text-sm font-medium text-gray-700 mb-1">Quota (req/day)</label>
-                        {numberField #quotaPerDay}
+                        <input type="number" name="quotaPerDay" value={maybe "" show consumer.quotaPerDay} class="border rounded px-3 py-2 text-sm w-full" />
                     </div>
                 </div>
                 <div class="pt-2 flex gap-3">