feat: garden care reminder bodies, task sync, upload cleanup

- care reminders now fire with plant-specific body ("Time to water Pothos")
  via title/body columns on the reminders table (migration 0016)
- bi-directional task sync: checking off a garden-linked task list item
  creates a care log; logging care from garden marks the linked task done
  (list_items.metadata stores gardenPlantId + gardenCareType linkage)
- upload error response no longer leaks debug detail; error message
  corrected from "5 MB" to "100 MB"

src/modules/garden/manifest.tsx

@@ -1,4 +1,7 @@
 import { z } from "zod";
+import { and, eq, sql } from "drizzle-orm";
+import { db } from "@/lib/db";
+import { registerItemToggleHook } from "../_core/registry";
 import type { ModuleManifest, WidgetContext } from "../_core/module";
 import {
   loadContainerForShare,
@@ -193,4 +196,45 @@ const gardenManifest: ModuleManifest = {
   ],
 };
 
+import { gardenCareLogs, gardenPlants } from "./schema";
+
+registerItemToggleHook("garden.care-task", async ({ metadata, done, userId }) => {
+  if (!done) return;
+  const plantId = metadata.gardenPlantId;
+  const careType = metadata.gardenCareType;
+  if (typeof plantId !== "string" || typeof careType !== "string") return;
+
+  const [plant] = await db
+    .select({ householdId: gardenPlants.householdId })
+    .from(gardenPlants)
+    .where(eq(gardenPlants.id, plantId))
+    .limit(1);
+
+  if (!plant) return;
+
+  // Avoid duplicate log if care was already logged within the last 10 minutes
+  const recentLog = await db
+    .select({ id: gardenCareLogs.id })
+    .from(gardenCareLogs)
+    .where(
+      and(
+        eq(gardenCareLogs.plantId, plantId),
+        eq(gardenCareLogs.careType, careType),
+        sql`${gardenCareLogs.performedAt} > now() - interval '10 minutes'`,
+      ),
+    )
+    .limit(1);
+
+  if (recentLog[0]) return;
+
+  await db.insert(gardenCareLogs).values({
+    plantId,
+    householdId: plant.householdId,
+    careType,
+    performedBy: userId,
+    notes: "Logged via task list",
+    performedAt: new Date(),
+  });
+});
+
 export default gardenManifest;