fix(admin): resolve all 266 TypeScript errors, enable strict build

Eliminate the pre-existing TS errors that were masked by
next.config.js `typescript.ignoreBuildErrors: true`, then turn the flag
OFF so the compiler is a real safety net for future changes. `next build`
and `tsc --noEmit` now pass with 0 errors.

The errors were not cosmetic — several exposed real latent bugs hidden by
the flag, e.g. the drafting-engine ConstraintEnforcer read non-existent
fields (`t.rule.dsfaRequired`, `d.required`, `r.title`), so its DSFA hard
gate and risk-flag checks were silently no-ops; scopeDefaults read
snake_case CompanyProfile fields that never matched the camelCase type
(generator defaults never populated). Both fixed by aligning code to the
current types.

Highlights:
- Vitest globals: add vitest-globals.d.ts (config already had globals:true)
  so the test files type-check; exclude Playwright specs from vitest.
- Add a minimal ambient `pg` module declaration (no @types/pg installed).
- Fix Next 15 route handlers to await Promise params.
- Reconcile drifted types across loeschfristen, compliance-scope, document-
  generator, drafting-engine, vendor-compliance, agent and more.

Pre-existing (NOT caused here, proven by stashing the diff): 3 vitest
logic tests still fail — getNextStep (2) and buildDocumentScope priority (1).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

admin-compliance/app/sdk/loeschfristen/_components/GeneratorTab.tsx

@@ -98,7 +98,7 @@ function GeneratedPreview({
                   <div className="flex flex-wrap gap-1">
                     {renderTriggerBadge(getEffectiveDeletionTrigger(gp))}
                     <span className="inline-block text-xs font-medium px-2 py-0.5 rounded-full bg-blue-100 text-blue-800">
-                      {formatRetentionDuration(gp)}
+                      {formatRetentionDuration(gp.retentionDuration, gp.retentionUnit)}
                     </span>
                     {gp.retentionDriver && (
                       <span className="inline-block text-xs font-medium px-2 py-0.5 rounded-full bg-gray-100 text-gray-600">
@@ -157,7 +157,7 @@ function ProfilingWizard({
   const totalSteps = PROFILING_STEPS.length
   const progress = getProfilingProgress(profilingAnswers)
   const allComplete = PROFILING_STEPS.every((step, idx) =>
-    isStepComplete(step, profilingAnswers.filter((a) => a.stepIndex === idx)),
+    isStepComplete(profilingAnswers.filter((a) => a.stepIndex === idx), step.id),
   )
   const currentStep: ProfilingStep | undefined = PROFILING_STEPS[profilingStep]
 
@@ -200,7 +200,7 @@ function ProfilingWizard({
             return (
               <div key={question.id} className="border-t border-gray-100 pt-4">
                 <label className="block text-sm font-medium text-gray-700 mb-2">
-                  {question.label}
+                  {question.question}
                   {question.helpText && (
                     <span className="block text-xs text-gray-400 font-normal mt-0.5">{question.helpText}</span>
                   )}
@@ -245,7 +245,7 @@ function ProfilingWizard({
                 {question.type === 'multi' && question.options && (
                   <div className="space-y-2">
                     {question.options.map((opt) => {
-                      const selectedValues: string[] = currentAnswer?.value || []
+                      const selectedValues: string[] = Array.isArray(currentAnswer?.value) ? currentAnswer.value : []
                       const isSelected = selectedValues.includes(opt.value)
                       return (
                         <label key={opt.value}
@@ -271,7 +271,7 @@ function ProfilingWizard({
                 )}
 
                 {question.type === 'number' && (
-                  <input type="number" value={currentAnswer?.value ?? ''}
+                  <input type="number" value={(currentAnswer?.value ?? '') as string | number}
                     onChange={(e) => handleProfilingAnswer(profilingStep, question.id, e.target.value ? parseInt(e.target.value) : '')}
                     min={0} placeholder="Bitte Zahl eingeben"
                     className="w-full px-3 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-purple-500" />