fix: update color regex to allow lowercase hex in OpenAPI schema

Author: rui-typelets

src/lib/openapi-schemas.ts

@@ -127,7 +127,7 @@ export const createFolderRequestSchema = z
       .openapi({ example: "Work Projects", description: "Folder name (1-100 characters)" }),
     color: z
       .string()
-      .regex(/^#[0-9A-F]{6}$/i)
+      .regex(/^#[0-9A-Fa-f]{6}$/)
       .nullable()
       .optional()
       .openapi({ example: "#3b82f6", description: "Folder color (hex format #RRGGBB)" }),
@@ -154,7 +154,7 @@ export const updateFolderRequestSchema = z
       .openapi({ example: "Updated Folder Name", description: "Folder name (1-100 characters)" }),
     color: z
       .string()
-      .regex(/^#[0-9A-F]{6}$/i)
+      .regex(/^#[0-9A-Fa-f]{6}$/)
       .nullable()
       .optional()
       .openapi({ example: "#ef4444", description: "Folder color (hex format #RRGGBB)" }),

src/lib/validation.ts

@@ -11,7 +11,7 @@ export const createFolderSchema = z.object({
   name: z.string().min(1, "Folder name is required").max(100),
   color: z
     .string()
-    .regex(/^#[0-9A-F]{6}$/i, "Invalid color format")
+    .regex(/^#[0-9A-Fa-f]{6}$/, "Invalid color format")
     .optional(),
   parentId: z.string().uuid().optional(),
   isDefault: z.boolean().optional(),
@@ -21,7 +21,7 @@ export const updateFolderSchema = z.object({
   name: z.string().min(1).max(100).optional(),
   color: z
     .string()
-    .regex(/^#[0-9A-F]{6}$/i)
+    .regex(/^#[0-9A-Fa-f]{6}$/)
     .optional(),
   parentId: z.string().uuid().nullable().optional(),
 });