feat(api): migrate personal pages into default note and drop note_pages (#823)

server/api/drizzle/0023_migrate_personal_pages_drop_note_pages.sql

@@ -0,0 +1,48 @@
+-- 0023: Migrate legacy personal pages (`pages.note_id IS NULL`) into each owner's
+-- default note, promote `pages.note_id` to NOT NULL, and drop `note_pages`.
+--
+-- 0023: 旧個人ページ（`pages.note_id IS NULL`）を所有者のデフォルトノートへ移し、
+-- `pages.note_id` を NOT NULL に昇格し、`note_pages` を DROP する。
+--
+-- Idempotent / re-run safety: INSERT uses NOT EXISTS guards; DELETE targets orphans only.
+
+-- 1) Orphan personal pages whose owner row no longer exists — delete before NOT NULL
+DELETE FROM "pages"
+WHERE "note_id" IS NULL
+  AND "owner_id" NOT IN (SELECT "id" FROM "user");
+--> statement-breakpoint
+
+-- 2) Safety net: ensure users who still have NULL note_id rows have a default note
+INSERT INTO "notes" ("owner_id", "title", "visibility", "edit_permission", "is_default")
+SELECT u."id", COALESCE(u."name", '') || 'のノート', 'private', 'owner_only', true
+FROM "user" u
+WHERE EXISTS (
+    SELECT 1 FROM "pages" p
+    WHERE p."owner_id" = u."id" AND p."note_id" IS NULL
+  )
+  AND NOT EXISTS (
+    SELECT 1 FROM "notes" n
+    WHERE n."owner_id" = u."id"
+      AND n."is_default" = true
+      AND n."is_deleted" = false
+  );
+--> statement-breakpoint
+
+-- 3) Backfill personal pages into the owner's default note
+UPDATE "pages" p
+SET "note_id" = (
+  SELECT n."id" FROM "notes" n
+  WHERE n."owner_id" = p."owner_id"
+    AND n."is_default" = true
+    AND n."is_deleted" = false
+  LIMIT 1
+)
+WHERE p."note_id" IS NULL;
+--> statement-breakpoint
+
+-- 4) Promote to NOT NULL
+ALTER TABLE "pages" ALTER COLUMN "note_id" SET NOT NULL;
+--> statement-breakpoint
+
+-- 5) Drop link table (single membership model — Issue #823)
+DROP TABLE IF EXISTS "note_pages";

server/api/drizzle/meta/_journal.json

@@ -155,6 +155,13 @@
       "when": 1778544000000,
       "tag": "0022_add_default_note",
       "breakpoints": true
+    },
+    {
+      "idx": 22,
+      "version": "7",
+      "when": 1778630400000,
+      "tag": "0023_migrate_personal_pages_drop_note_pages",
+      "breakpoints": true
     }
   ]
 }

server/api/src/__tests__/routes/media.test.ts

@@ -46,11 +46,15 @@ vi.mock("@aws-sdk/client-s3", () => {
   function MockDeleteObjectCommand() {
     /* stub */
   }
+  function MockHeadObjectCommand() {
+    /* stub — ownership probe on /confirm */
+  }
   return {
     S3Client: MockS3Client,
     PutObjectCommand: MockPutObjectCommand,
     GetObjectCommand: MockGetObjectCommand,
     DeleteObjectCommand: MockDeleteObjectCommand,
+    HeadObjectCommand: MockHeadObjectCommand,
   };
 });
 
@@ -86,6 +90,8 @@ function createMediaApp(dbResults: unknown[]) {
 
 beforeEach(() => {
   mockS3Send.mockReset();
+  // POST /confirm always probes via HeadObject; tests that need other shapes use mockResolvedValueOnce.
+  mockS3Send.mockResolvedValue({ ContentLength: 1024 });
 });
 
 describe("POST /api/media/confirm — S3 key ownership validation", () => {

server/api/src/__tests__/routes/notes/crud.test.ts

@@ -425,9 +425,7 @@ describe("GET /api/notes/:noteId", () => {
     expect(page).toHaveProperty("source_page_id");
     expect(page).toHaveProperty("content_preview");
     expect(page).toHaveProperty("thumbnail_url");
-    expect(page).toHaveProperty("sort_order");
-    expect(page).toHaveProperty("added_by_user_id");
-    expect(page).toHaveProperty("added_at");
+    expect(page).toHaveProperty("note_id", mockNote.id);
   });
 
   it("should return 404 for non-existent note", async () => {