fix: FieldAttribute type usage (#37)

Simplify usage of schema FieldAttribute type - an upstream release from BetterAuth failed our build and shines light on how this should be

Author: zpg6

src/schema.ts

@@ -1,71 +1,57 @@
 import type { AuthPluginSchema } from "better-auth";
-import type { FieldAttribute, FieldType } from "better-auth/db";
+import type { FieldAttribute } from "better-auth/db";
 import type { CloudflarePluginOptions } from "./types";
 
-/**
- * Type for geolocation database fields
- */
-type GeolocationFields = {
-    [x: string]: FieldAttribute<FieldType>;
-};
-
-/**
- * Type for file tracking database fields
- */
-type FileFields = {
-    [x: string]: FieldAttribute<FieldType>;
-};
-
 /**
  * Database fields for Cloudflare geolocation
  */
-const geolocationFields: GeolocationFields = {
+const geolocationFields = {
     timezone: {
         type: "string",
         required: false,
         input: false,
-    },
+    } as FieldAttribute,
     city: {
         type: "string",
         required: false,
         input: false,
-    },
+    } as FieldAttribute,
     country: {
         type: "string",
         required: false,
         input: false,
-    },
+    } as FieldAttribute,
     region: {
         type: "string",
         required: false,
         input: false,
-    },
+    } as FieldAttribute,
     regionCode: {
         type: "string",
         required: false,
         input: false,
-    },
+    } as FieldAttribute,
     colo: {
         type: "string",
         required: false,
         input: false,
-    },
+    } as FieldAttribute,
     latitude: {
         type: "string",
         required: false,
         input: false,
-    },
+    } as FieldAttribute,
     longitude: {
         type: "string",
         required: false,
         input: false,
-    },
+    } as FieldAttribute,
 };
 
 /**
  * Core database fields for file tracking
  */
-const coreFileFields: FileFields = {
+const coreFileFields = {
     userId: {
         type: "string",
         required: true,
@@ -74,49 +60,49 @@ const coreFileFields: FileFields = {
             model: "user",
             field: "id",
         },
-    },
+    } as FieldAttribute,
     filename: {
         type: "string",
         required: true,
         input: false,
-    },
+    } as FieldAttribute,
     originalName: {
         type: "string",
         required: true,
         input: false,
-    },
+    } as FieldAttribute,
     contentType: {
         type: "string",
         required: true,
         input: false,
-    },
+    } as FieldAttribute,
     size: {
         type: "number",
         required: true,
         input: false,
-    },
+    } as FieldAttribute,
     r2Key: {
         type: "string",
         required: true,
         input: false,
-    },
+    } as FieldAttribute,
     uploadedAt: {
         type: "date",
         required: true,
         input: false,
-    },
+    } as FieldAttribute,
 };
 
 /**
  * Generates file tracking fields including custom fields
  */
-function generateFileFields(additionalFields?: Record<string, FieldAttribute>): FileFields {
+function generateFileFields(additionalFields?: Record<string, FieldAttribute>) {
     const fields = { ...coreFileFields };
 
     if (additionalFields) {
         for (const [fieldName, fieldConfig] of Object.entries(additionalFields)) {
             // Use FieldAttribute directly - no conversion needed!
-            fields[fieldName] = fieldConfig;
+            fields[fieldName as keyof typeof fields] = fieldConfig;
         }
     }