Redact tool: rich UI, multilingual, engine choice, output formats

- Custom inline form (EN/NO/UK/PL lang switcher) replacing generic stub
- Engine selector: Azure gpt-4o-mini (default), gpt-4o, GPU cuttlefish, regex-only
- Entity type toggles: names, organisations, places, dates of birth
- Output formats: contextual role tags, generic [PERSON], Norwegian pseudonyms
- Keep officials mode: judges/experts kept as [JUDGE: Andersen] format
- Exempt names list: specific names excluded from redaction
- Hint paragraphs explaining each option in all four languages
- Backend: engine routing, callGpuLlm(), applyGenericTags(), applyPseudonymization()
- AzureOpenAiGateway: withDeployment() clone pattern for per-call model override

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

api/redact.php

@@ -13,6 +13,18 @@ dbnToolsWithTelemetry('redact', '', function () use ($input): array {
     $region   = dbnToolsNormalizeRegion($input['region']   ?? 'nordic');
     $language = dbnToolsNormalizeLanguage($input['language'] ?? 'en');
 
+    $validEngines = ['azure_mini', 'azure_full', 'gpu', 'regex'];
+    $engine = in_array((string)($input['engine'] ?? ''), $validEngines, true)
+        ? (string)$input['engine']
+        : 'azure_mini';
+
+    $validFormats = ['contextual', 'generic', 'pseudonym'];
+    $outputFormat = in_array((string)($input['output_format'] ?? ''), $validFormats, true)
+        ? (string)$input['output_format']
+        : 'contextual';
+
+    $keepOfficials = (bool)($input['keep_officials'] ?? false);
+
     $aliases = [];
     $rawAliases = $input['aliases'] ?? [];
     if (is_array($rawAliases)) {
@@ -28,5 +40,27 @@ dbnToolsWithTelemetry('redact', '', function () use ($input): array {
         }
     }
 
-    return (new DbnLegalToolsService())->redact($text, $mode, $region, $language, $aliases);
+    $exemptNames = [];
+    $rawExempt = $input['exempt_names'] ?? [];
+    if (is_array($rawExempt)) {
+        foreach (array_slice($rawExempt, 0, 20) as $name) {
+            $name = substr(trim((string)$name), 0, 100);
+            if ($name !== '') {
+                $exemptNames[] = $name;
+            }
+        }
+    }
+
+    $rawTypes = $input['redact_types'] ?? [];
+    $redactTypes = [
+        'names'  => ($rawTypes['names']  ?? true) !== false,
+        'orgs'   => ($rawTypes['orgs']   ?? true) !== false,
+        'places' => ($rawTypes['places'] ?? true) !== false,
+        'dob'    => ($rawTypes['dob']    ?? true) !== false,
+    ];
+
+    return (new DbnLegalToolsService())->redact(
+        $text, $mode, $region, $language, $aliases,
+        $engine, $outputFormat, $keepOfficials, $exemptNames, $redactTypes
+    );
 });