feat: Enhance Manticore integration and AI model support

- Added support for specifying vector dimensions in AI payloads for compatible vendors.
- Updated default AI model from 'text-embedding-ada-002' to 'text-embedding-3-small'.
- Refactored ManticoreBase to bind parameters explicitly for PDO statements, improving type handling.
- Adjusted SQL queries across Manticore modules to remove content previews and ensure inline vector values.
- Updated content preview handling in ManticoreFile, ManticoreProject, ManticoreTask, and ManticoreUser to use substrings for better data management.

app/Module/Manticore/ManticoreUser.php

@@ -115,7 +115,7 @@ class ManticoreUser
                 'email' => $item['email'],
                 'tel' => $item['tel'],
                 'profession' => $item['profession'],
-                'introduction_preview' => $item['introduction_preview'] ?? null,
+                'introduction_preview' => isset($item['introduction']) ? mb_substr($item['introduction'], 0, 200) : null,
                 'relevance' => $item['relevance'] ?? $item['similarity'] ?? $item['rrf_score'] ?? 0,
             ];
         }