feat(garden): add share button to plant and container detail views

src/modules/garden/components/container-detail.tsx

@@ -2,6 +2,7 @@
 
 import { useState, useTransition } from "react";
 import { useRouter } from "next/navigation";
+import { ShareButton } from "@/components/share-button";
 import { deleteContainer } from "../server/actions";
 import { ContainerForm } from "./container-form";
 import type { ContainerDetailDto } from "../server/queries";
@@ -39,6 +40,7 @@ export function ContainerDetail({ container }: Props) {
           {container.locationNotes && <p className="text-sm mt-2">{container.locationNotes}</p>}
         </div>
         <div className="flex gap-2 shrink-0">
+          <ShareButton entityType="garden.container" entityId={container.id} />
           <button className="btn btn-ghost btn-sm" onClick={() => setEditing(true)}>
             Edit
           </button>

src/modules/garden/components/plant-detail.tsx

@@ -6,6 +6,7 @@ import { useRouter } from "next/navigation";
 import { deletePlant, addPlantImage, removePlantImage, setPrimaryImage } from "../server/actions";
 import type { CalendarDto } from "../server/calendar-bridge";
 import type { CareLogDto, CareScheduleDto, PlantDetailDto } from "../server/queries";
+import { ShareButton } from "@/components/share-button";
 import { CareHistoryList } from "./care-history-list";
 import { CareLogForm } from "./care-log-form";
 import { CareScheduleEditor } from "./care-schedule-editor";
@@ -123,6 +124,7 @@ export function PlantDetail({ plant, careLogs, careSchedules, calendars }: Props
         </div>
 
         <div className="flex gap-2 shrink-0">
+          <ShareButton entityType="garden.plant" entityId={plant.id} />
           <Link href={`/garden/plants/${plant.id}/edit`} className="btn btn-ghost btn-sm">
             Edit
           </Link>