Add premium My Case MVP

api/deep-research.php

@@ -3,6 +3,8 @@ declare(strict_types=1);
 
 require_once __DIR__ . '/../includes/bootstrap.php';
 require_once __DIR__ . '/../includes/DeepResearchAgent.php';
+require_once __DIR__ . '/../includes/CaseResults.php';
+require_once __DIR__ . '/../includes/ToolModels.php';
 
 dbnToolsRequireMethod('POST');
 dbnToolsRequireAuth();
@@ -59,7 +61,7 @@ try {
     $seedQuery    = trim((string)($input['query'] ?? ''));
     $pastedText   = trim((string)($input['paste_text'] ?? ''));
     $sliceInput   = $input['slices'] ?? [];
-    $engine       = (string)($input['engine'] ?? 'azure_mini');
+    $engine       = ToolModels::engineForUser($ftUid, (string)($input['engine'] ?? 'azure_mini'));
     $controls     = is_array($input['controls'] ?? null) ? $input['controls'] : [];
     $advocateRole = trim((string)($input['advocate_role'] ?? ''));
     if (mb_strlen($advocateRole, 'UTF-8') > 200) {
@@ -115,6 +117,16 @@ try {
         'upload_count' => count($uploadedFiles),
     ]);
 
+    // Optional: append user's case-context chunks to pasted_text so the agent sees them.
+    $useMyCase = !empty($input['use_my_case']);
+    if ($useMyCase) {
+        $retrievalQuery = $seedQuery !== '' ? $seedQuery : mb_substr($pastedText, 0, 2000, 'UTF-8');
+        $caseBlock = dbnToolsCaseContext(true, $retrievalQuery, 5);
+        if ($caseBlock !== '') {
+            $pastedText = ($pastedText === '') ? $caseBlock : ($pastedText . "\n\n" . $caseBlock);
+        }
+    }
+
     $result = (new DbnDeepResearchAgent())->run(
         $seedQuery,
         $pastedText,
@@ -144,6 +156,21 @@ try {
         'advocate_role' => $advocateRole !== '' ? $advocateRole : null,
     ]);
 
+    if ($ftUid > 0) {
+        $toolSlug = $advocateRole !== '' ? 'advocate' : 'deep-research';
+        $ownerId = CaseStore::caseResolveClientId($ftUid);
+        $resultId = CaseResults::save($ftUid, $ownerId, $toolSlug, $input, $result, [
+            'used_case_context' => $useMyCase ? 1 : 0,
+            'case_doc_ids'      => dbnToolsLastCaseDocIds(),
+            'model'             => $result['trace_metadata']['deployment'] ?? $engine,
+            'latency_ms'        => $result['latency_ms'],
+            'credits_charged'   => FreeTier::cost($toolSlug),
+        ]);
+        if ($resultId > 0) {
+            $result['result_id'] = $resultId;
+        }
+    }
+
     $emit('final', ['result' => $result]);
 
 } catch (DbnToolsHttpException $e) {