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/DecisionRecords/Show.hs

@@ -4,6 +4,8 @@ import Web.Types
 import Generated.Types
 import IHP.Prelude
 import IHP.ViewPrelude
+import Web.Routes ()
+import Data.Int (Int16)
 
 data ShowView = ShowView
     { record            :: !DecisionRecord
@@ -33,7 +35,7 @@ instance View ShowView where
                         <span class={outcomeClass record.outcome <> " text-xs px-2 py-0.5 rounded font-medium"}>
                             {record.outcome}
                         </span>
-                        <a href={EditDecisionRecordAction { decisionRecordId = record.id }}
+                        <a href={EditDecisionRecordAction (record.id)}
                            class="text-sm border border-gray-300 px-3 py-1.5 rounded hover:bg-gray-50">
                             Edit
                         </a>
@@ -52,12 +54,7 @@ instance View ShowView where
             <!-- Linked requirement -->
             <div class="bg-white rounded-lg border border-gray-200 px-6 py-4">
                 <h2 class="text-sm font-semibold text-gray-700 mb-2">Linked Requirement</h2>
-                {case mRequirement of
-                    Nothing  -> [hsx|<p class="text-sm text-gray-400">No requirement linked.</p>|]
-                    Just req -> [hsx|
-                        <a href={ShowRequirementAction { requirementId = req.id }}
-                           class="text-sm text-indigo-600 hover:text-indigo-800">{req.title}</a>
-                    |]}
+                {renderLinkedRequirement mRequirement}
             </div>
 
             <!-- Source candidate -->
@@ -67,7 +64,7 @@ instance View ShowView where
             <div class="bg-white rounded-lg border border-gray-200 px-6 py-4">
                 <h2 class="text-sm font-semibold text-gray-700 mb-3">Policy References</h2>
                 {forEach policyRefs renderPolicyRef}
-                <form method="POST" action={AddPolicyReferenceAction { decisionRecordId = record.id }}
+                <form method="POST" action={AddPolicyReferenceAction (record.id)}
                       class="mt-3 flex items-end gap-2">
                     {hiddenField "authenticity_token"}
                     <div>
@@ -98,32 +95,23 @@ instance View ShowView where
             <div class="bg-white rounded-lg border border-gray-200 px-6 py-4">
                 <div class="flex items-center justify-between mb-3">
                     <h2 class="text-sm font-semibold text-gray-700">Deployments</h2>
-                    {if null implRefs
-                        then mempty
-                        else [hsx|
-                            <a href={(pathTo NewDeploymentRecordAction) <> "?decisionId=" <> show record.id}
-                               class="text-xs border border-indigo-300 text-indigo-600 px-3 py-1 rounded hover:bg-indigo-50">
-                                New Deployment
-                            </a>
-                        |]}
+                    {if null implRefs then mempty else renderNewDeploymentLink record.id}
                 </div>
-                {if null deploymentRecords
-                    then [hsx|<p class="text-sm text-gray-400">No deployments recorded yet.</p>|]
-                    else [hsx|{forEach deploymentRecords (renderDeploymentRow evaluations)}|]}
+                {if null deploymentRecords then noDeploymentsMsg else forEach deploymentRecords (renderDeploymentRow evaluations)}
             </div>
 
             <!-- Implementation references -->
             <div class="bg-white rounded-lg border border-gray-200 px-6 py-4">
                 <div class="flex items-center justify-between mb-3">
                     <h2 class="text-sm font-semibold text-gray-700">Implementation References</h2>
-                    <form method="POST" action={ProposeImplementationAction { decisionRecordId = record.id }} class="inline">
+                    <form method="POST" action={ProposeImplementationAction (record.id)} class="inline">
                         <button type="submit" class="text-xs border border-green-300 text-green-700 px-2 py-1 rounded hover:bg-green-50">
                             Propose Implementation
                         </button>
                     </form>
                 </div>
                 {forEach implRefs renderImplRef}
-                <form method="POST" action={AddImplementationRefAction { decisionRecordId = record.id }}
+                <form method="POST" action={AddImplementationRefAction (record.id)}
                       class="mt-3 flex items-end gap-2">
                     {hiddenField "authenticity_token"}
                     <div>
@@ -163,7 +151,7 @@ renderCandidateSection :: RequirementCandidate -> Html
 renderCandidateSection c = [hsx|
     <div class="bg-white rounded-lg border border-gray-200 px-6 py-4">
         <h2 class="text-sm font-semibold text-gray-700 mb-2">Source Candidate</h2>
-        <a href={ShowRequirementCandidateAction { requirementCandidateId = c.id }}
+        <a href={ShowRequirementCandidateAction (c.id)}
            class="text-sm text-indigo-600 hover:text-indigo-800">{c.title}</a>
     </div>
 |]
@@ -175,11 +163,11 @@ renderPolicyRef ref = [hsx|
             <span class={policyScopeClass ref.policyScope <> " text-xs px-2 py-0.5 rounded font-medium"}>
                 {ref.policyScope}
             </span>
-            {maybe mempty (\n -> [hsx|<span class="text-gray-600">{n}</span>|]) ref.constraintNote}
+            {maybe mempty renderConstraintNote ref.constraintNote}
             <span class="text-xs text-gray-400">{show ref.createdAt}</span>
         </div>
         <form method="POST"
-              action={DeletePolicyReferenceAction { policyReferenceId = ref.id }}>
+              action={DeletePolicyReferenceAction (ref.id)}>
             {hiddenField "authenticity_token"}
             <button type="submit"
                     class="text-xs text-red-500 hover:text-red-700 ml-2">Remove</button>
@@ -198,7 +186,7 @@ renderImplRef ref = [hsx|
             <span class="text-xs text-gray-400">{show ref.linkedAt}</span>
         </div>
         <form method="POST"
-              action={DeleteImplementationRefAction { implementationChangeReferenceId = ref.id }}>
+              action={DeleteImplementationRefAction (ref.id)}>
             {hiddenField "authenticity_token"}
             <button type="submit"
                     class="text-xs text-red-500 hover:text-red-700 ml-2">Remove</button>
@@ -228,11 +216,32 @@ systemBadgeClass "linear" = "bg-violet-100 text-violet-800"
 systemBadgeClass "jira"   = "bg-blue-100 text-blue-800"
 systemBadgeClass _        = "bg-gray-100 text-gray-600"
 
+renderLinkedRequirement :: Maybe Requirement -> Html
+renderLinkedRequirement Nothing = [hsx|<p class="text-sm text-gray-400">No requirement linked.</p>|]
+renderLinkedRequirement (Just req) = [hsx|
+    <a href={ShowRequirementAction (req.id)}
+       class="text-sm text-indigo-600 hover:text-indigo-800">{req.title}</a>
+|]
+
+renderNewDeploymentLink :: Id DecisionRecord -> Html
+renderNewDeploymentLink recordId = [hsx|
+    <a href={(pathTo NewDeploymentRecordAction) <> "?decisionId=" <> show recordId}
+       class="text-xs border border-indigo-300 text-indigo-600 px-3 py-1 rounded hover:bg-indigo-50">
+        New Deployment
+    </a>
+|]
+
+noDeploymentsMsg :: Html
+noDeploymentsMsg = [hsx|<p class="text-sm text-gray-400">No deployments recorded yet.</p>|]
+
+renderConstraintNote :: Text -> Html
+renderConstraintNote n = [hsx|<span class="text-gray-600">{n}</span>|]
+
 renderDeploymentRow :: [ChangeEvaluation] -> DeploymentRecord -> Html
 renderDeploymentRow evals dr = [hsx|
     <div class="flex items-center justify-between py-2 border-b border-gray-100 last:border-0">
         <div class="flex items-center gap-2 text-sm">
-            <a href={ShowDeploymentRecordAction { deploymentRecordId = dr.id }}
+            <a href={ShowDeploymentRecordAction (dr.id)}
                class="font-mono text-indigo-600 hover:text-indigo-800">{dr.versionRef}</a>
             <span class="text-xs text-gray-400">{show dr.deployedAt}</span>
         </div>