feat: push+email notifications, recipe notes, fork/clone, pantry-aware lists, GDPR export

Five S-sized items from HANDOFF.md's new-features backlog, all wiring up
previously-orphaned infra:

- createNotification now sends web push + email for every notification type
  (follow/comment/reply/reaction/rating/mention), not just comments
- Personal recipe notes: private per-user notes on any viewable recipe
  (recipeNotes table had zero API/UI before this)
- Recipe fork/clone: deep-copies a viewable recipe into your own library as
  a private draft, linked via recipeVariations, respects tier quota
- Pantry-aware shopping lists: meal-plan-generated lists now subtract
  on-hand pantry quantities (ingredientId match, falling back to normalized
  name match) and flag partial/ambiguous matches instead of guessing
- GDPR data export: downloadable JSON of a user's own content and activity
  across every relevant table, secrets/internal tables excluded

New migrations 0025 (unique index for recipe-notes upsert) and 0026
(shopping_list_items.in_pantry) generated, left unapplied like 0023/0024.
Verified with typecheck, lint, and a full local `docker build`.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

packages/db/src/migrations/0025_wonderful_micromacro.sql

@@ -0,0 +1 @@
+CREATE UNIQUE INDEX "recipe_notes_recipe_user_idx" ON "recipe_notes" USING btree ("recipe_id","user_id");

packages/db/src/migrations/0026_sharp_rictor.sql

@@ -0,0 +1 @@
+ALTER TABLE "shopping_list_items" ADD COLUMN "in_pantry" boolean DEFAULT false NOT NULL;

packages/db/src/migrations/meta/_journal.json

@@ -176,6 +176,20 @@
       "when": 1783623700772,
       "tag": "0024_moaning_roughhouse",
       "breakpoints": true
+    },
+    {
+      "idx": 25,
+      "version": "7",
+      "when": 1783661174093,
+      "tag": "0025_wonderful_micromacro",
+      "breakpoints": true
+    },
+    {
+      "idx": 26,
+      "version": "7",
+      "when": 1783661460616,
+      "tag": "0026_sharp_rictor",
+      "breakpoints": true
     }
   ]
 }

packages/db/src/schema/meal-planning.ts

@@ -72,6 +72,7 @@ export const shoppingListItems = pgTable("shopping_list_items", {
   unit: text("unit"),
   aisle: text("aisle"),
   checked: boolean("checked").notNull().default(false),
+  inPantry: boolean("in_pantry").notNull().default(false),
 });
 
 export const shoppingListMembers = pgTable("shopping_list_members", {

packages/db/src/schema/recipes.ts

@@ -8,6 +8,7 @@ import {
   jsonb,
   pgEnum,
   index,
+  uniqueIndex,
 } from "drizzle-orm/pg-core";
 import { relations } from "drizzle-orm";
 import { users } from "./users";
@@ -101,7 +102,9 @@ export const recipeNotes = pgTable("recipe_notes", {
   content: text("content").notNull(),
   createdAt: timestamp("created_at").notNull().defaultNow(),
   updatedAt: timestamp("updated_at").notNull().defaultNow(),
-});
+}, (t) => [
+  uniqueIndex("recipe_notes_recipe_user_idx").on(t.recipeId, t.userId),
+]);
 
 export const recipeVariations = pgTable("recipe_variations", {
   id: text("id").primaryKey(),