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/workflow/_components/RichTextToolbar.tsx

@@ -78,7 +78,7 @@ export default function RichTextToolbar({
         <div className="flex items-center gap-1">
           <input
             type="file"
-            ref={fileInputRef}
+            ref={fileInputRef as RefObject<HTMLInputElement>}
             onChange={onWordUpload}
             accept=".docx,.doc"
             className="hidden"

admin-compliance/app/sdk/workflow/_components/SplitViewEditor.tsx

@@ -55,7 +55,7 @@ export default function SplitViewEditor({
                 className="w-full px-3 py-2 mb-4 bg-slate-50 border border-slate-200 rounded-lg text-slate-700"
               />
               <div
-                ref={leftPanelRef}
+                ref={leftPanelRef as RefObject<HTMLDivElement>}
                 className="prose prose-sm max-w-none p-4 bg-slate-50 border border-slate-200 rounded-lg min-h-[500px] max-h-[500px] overflow-y-auto"
                 dangerouslySetInnerHTML={{ __html: currentVersion.content }}
               />
@@ -114,11 +114,11 @@ export default function SplitViewEditor({
 
           {isEditable ? (
             <div
-              ref={rightPanelRef}
+              ref={rightPanelRef as RefObject<HTMLDivElement>}
               className="min-h-[500px] max-h-[500px] overflow-y-auto"
             >
               <div
-                ref={editorRef}
+                ref={editorRef as RefObject<HTMLDivElement>}
                 contentEditable
                 onInput={onUpdateEditorContent}
                 onPaste={onPaste}
@@ -129,7 +129,7 @@ export default function SplitViewEditor({
             </div>
           ) : (
             <div
-              ref={rightPanelRef}
+              ref={rightPanelRef as RefObject<HTMLDivElement>}
               className="prose prose-sm max-w-none p-4 bg-slate-50 border border-slate-200 rounded-lg min-h-[500px] max-h-[500px] overflow-y-auto"
               dangerouslySetInnerHTML={{ __html: editedContent || draftVersion?.content || '' }}
             />