Add OpenAI and PostgreSQL credential management

- Implemented OpenAICredencial class for managing OpenAI API keys.
- Created OpenAICredencialModel and OpenAICredencialMapper for SQLAlchemy integration.
- Developed OpenAICredencialRepo for CRUD operations on OpenAI credentials.
- Established OpenAICliente class for interacting with OpenAI API.
- Introduced PostgresCredencial class for managing PostgreSQL connection details.
- Created PostgresCredencialModel and PostgresCredencialMapper for SQLAlchemy integration.
- Developed PostgresCredencialRepo for CRUD operations on PostgreSQL credentials.
- Added base connection class and PostgreSQL connection implementation.
- Included environment variable loading for sensitive data management.

frontend/.prettierrc.mjs

@@ -0,0 +1,35 @@
+/** @type {import("@ianvs/prettier-plugin-sort-imports").PrettierConfig} */
+const config = {
+  printWidth: 100,
+  singleQuote: true,
+  trailingComma: 'es5',
+  plugins: ['@ianvs/prettier-plugin-sort-imports'],
+  importOrder: [
+    '.*styles.css$',
+    '',
+    'dayjs',
+    '^react$',
+    '^next$',
+    '^next/.*$',
+    '<BUILTIN_MODULES>',
+    '<THIRD_PARTY_MODULES>',
+    '^@mantine/(.*)$',
+    '^@mantinex/(.*)$',
+    '^@mantine-tests/(.*)$',
+    '^@docs/(.*)$',
+    '^@/.*$',
+    '^../(?!.*.css$).*$',
+    '^./(?!.*.css$).*$',
+    '\\.css$',
+  ],
+  overrides: [
+    {
+      files: '*.mdx',
+      options: {
+        printWidth: 70,
+      },
+    },
+  ],
+};
+
+export default config;