fix(sdk): respect @@strict inherited from mixins in type def generation

The strict flag check used hasAttribute, which only inspects attributes
declared directly on the type def, while the attributes array is built
with getAllAttributes (including mixins). A type def inheriting @@strict
from a mixin thus never got \`strict: true\` in the generated schema.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: ymc9

packages/cli/test/ts-schema-gen.test.ts

@@ -872,4 +872,27 @@ type Profile {
             },
         });
     });
+
+    it('supports @@strict inherited from mixins', async () => {
+        const { schema } = await generateTsSchema(`
+model User {
+    id      String   @id @default(uuid())
+    profile Profile? @json
+}
+
+type Strict {
+    @@strict
+}
+
+type Profile with Strict {
+    bio String
+}
+            `);
+
+        expect(schema.typeDefs).toMatchObject({
+            Profile: {
+                strict: true,
+            },
+        });
+    });
 });

packages/sdk/src/ts-schema-generator.ts

@@ -546,7 +546,7 @@ export class TsSchemaGenerator {
                 : []),
         ];
 
-        if (hasAttribute(td, '@@strict')) {
+        if (getAllAttributes(td).some((attr) => attr.decl.$refText === '@@strict')) {
             fields.push(ts.factory.createPropertyAssignment('strict', ts.factory.createTrue()));
         }