feat: migrate taken_by to taken_by_json for multi-person support

- Added `taken_by_json` column to `medications` table to store an array of names.
- Updated migration scripts to convert existing `taken_by` data into JSON format.
- Modified backend routes to handle the new `taken_by_json` structure, including parsing and filtering logic.
- Updated frontend to support multi-value input for "Taken By" using tags.
- Adjusted validation and state management for the new array format in forms.
- Enhanced UI for displaying multiple names and added autocomplete suggestions for input.
- Updated translations for input placeholders to reflect new functionality.
- Added CSS styles for tag input components.

backend/src/db/schema.ts

@@ -25,7 +25,8 @@ export const medications = sqliteTable("medications", {
   userId: integer("user_id").notNull().references(() => users.id, { onDelete: "cascade" }),
   name: text("name", { length: 100 }).notNull(),
   genericName: text("generic_name", { length: 100 }),
-  takenBy: text("taken_by", { length: 100 }),
+  takenBy: text("taken_by", { length: 100 }), // Deprecated: use takenByJson
+  takenByJson: text("taken_by_json").notNull().default("[]"), // JSON array of person names
   count: integer("count").notNull().default(0),
   strips: integer("strips").notNull().default(0),
   packCount: integer("pack_count").notNull().default(1),