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/GovernanceTemplates/Show.hs

@@ -4,6 +4,7 @@ import Web.Types
 import Generated.Types
 import IHP.Prelude
 import IHP.ViewPrelude
+import Web.Routes ()
 import Data.Aeson (Value(..), decode, encode)
 import qualified Data.ByteString.Lazy.Char8 as BL
 
@@ -23,23 +24,19 @@ instance View ShowView where
 
         <div class="flex items-center gap-3 mb-2">
             <h1 class="text-2xl font-semibold">{template.name}</h1>
-            {if template.isPublished
-                then [hsx|<span class="px-2 py-0.5 rounded text-xs bg-green-100 text-green-800">published</span>|]
-                else [hsx|<span class="px-2 py-0.5 rounded text-xs bg-amber-100 text-amber-800">draft</span>|]}
+            {renderPublishedBadge template.isPublished}
         </div>
 
         <p class="text-sm text-gray-500 mb-1">Hub: {hub.name}</p>
         <p class="text-sm text-gray-500 mb-4">{tshow cloneCount} clones</p>
 
-        {maybe mempty (\d -> [hsx|<p class="text-sm text-gray-600 mb-4">{d}</p>|]) template.description}
+        {maybe mempty renderTemplateDesc template.description}
 
         <div class="mb-4">
             <h3 class="text-sm font-semibold text-gray-700 mb-2">Categories</h3>
             <div class="flex flex-wrap gap-1">
                 {forEach (jsonArrayTexts template.categories) renderCategoryTag}
-                {if null (jsonArrayTexts template.categories)
-                    then [hsx|<span class="text-xs text-gray-400">None</span>|]
-                    else mempty}
+                {if null (jsonArrayTexts template.categories) then noCategoriesBadge else mempty}
             </div>
         </div>
 
@@ -50,21 +47,32 @@ instance View ShowView where
             </pre>
         </div>
 
-        {if template.isPublished
-            then [hsx|
-                <a href={CloneGovernanceTemplateAction { governanceTemplateId = template.id }}
-                   class="text-sm bg-indigo-600 text-white px-3 py-1.5 rounded hover:bg-indigo-700">
-                    Clone to My Hub
-                </a>
-            |]
-            else mempty}
+        {if template.isPublished then renderCloneLink template.id else mempty}
     |]
 
+renderCloneLink :: Id GovernanceTemplate -> Html
+renderCloneLink tid = [hsx|
+    <a href={CloneGovernanceTemplateAction (tid)}
+       class="text-sm bg-indigo-600 text-white px-3 py-1.5 rounded hover:bg-indigo-700">
+        Clone to My Hub
+    </a>
+|]
+
 renderCategoryTag :: Text -> Html
 renderCategoryTag cat = [hsx|
     <span class="px-2 py-0.5 rounded text-xs bg-blue-100 text-blue-700 font-mono">{cat}</span>
 |]
 
+renderPublishedBadge :: Bool -> Html
+renderPublishedBadge True  = [hsx|<span class="px-2 py-0.5 rounded text-xs bg-green-100 text-green-800">published</span>|]
+renderPublishedBadge False = [hsx|<span class="px-2 py-0.5 rounded text-xs bg-amber-100 text-amber-800">draft</span>|]
+
+noCategoriesBadge :: Html
+noCategoriesBadge = [hsx|<span class="text-xs text-gray-400">None</span>|]
+
+renderTemplateDesc :: Text -> Html
+renderTemplateDesc d = [hsx|<p class="text-sm text-gray-600 mb-4">{d}</p>|]
+
 jsonArrayTexts :: Value -> [Text]
 jsonArrayTexts val = case decode (encode val) of
     Just (arr :: [Text]) -> arr