feat(core,server): log feed, titles on changes, work titles on copies

GET log (engagements and listens, keyset over at/kind/id), listChanges
title and intoTitle, listCopies workTitle, all via batched lookups.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/server/src/app.ts

@@ -8,6 +8,7 @@ import { engagementRoutes } from "./routes/engagements.ts";
 import { entryRoutes } from "./routes/entries.ts";
 import { exportRoutes } from "./routes/export.ts";
 import { listRoutes } from "./routes/lists.ts";
+import { logRoutes } from "./routes/log.ts";
 import { metaRoutes } from "./routes/meta.ts";
 import { sourceRoutes } from "./routes/sources.ts";
 import { workRoutes } from "./routes/works.ts";
@@ -26,6 +27,7 @@ export function createApp(deps: AppDeps): App {
     ...engagementRoutes,
     ...workRoutes,
     ...listRoutes,
+    ...logRoutes,
     ...copyRoutes,
     ...customFieldRoutes,
     ...attachmentRoutes,

apps/server/src/routes/log.ts

@@ -0,0 +1,15 @@
+import { listLog } from "@sttracker/core/log";
+import { z } from "zod";
+import { route } from "../http.ts";
+import { qInt } from "./schemas.ts";
+
+export const logRoutes = [
+  route({
+    method: "GET",
+    path: "log",
+    summary: "Your Log: engagements and listens, newest first (keyset cursor).",
+    auth: "any:read",
+    query: z.object({ limit: qInt.optional(), cursor: z.string().max(2000).optional() }),
+    handler: async ({ deps, user, query }) => listLog(deps.db, user.id, query),
+  }),
+];

apps/server/test/api.test.ts

@@ -329,6 +329,25 @@ forEachDialect("api", (getDb) => {
     expect((await call(app, "PATCH", "me/preferences", { cookie: ana, body: { ratingScale: "5" }, noCsrf: true })).status).toBe(403);
   });
 
+  test("log: engagements newest first with keyset paging; copies carry workTitle", async () => {
+    const ana = await signUp(app, "ana");
+    const e = (await (await call(app, "POST", "entries/quick", { cookie: ana, body: { title: "Dune" } })).json()) as { id: string; workId: string };
+    for (const value of ["2026-01-02", "2026-03-04"]) {
+      const r = await call(app, "POST", `entries/${e.id}/engagements`, { cookie: ana, body: { finishedAt: { value, precision: "day" } } });
+      expect(r.status).toBe(201);
+    }
+    const page1 = (await (await call(app, "GET", "log?limit=1", { cookie: ana })).json()) as { items: { at: string; title: string; kind: string }[]; nextCursor: string };
+    expect(page1.items).toEqual([expect.objectContaining({ kind: "engagement", at: "2026-03-04", title: "Dune" })]);
+    const page2 = (await (await call(app, "GET", `log?limit=1&cursor=${page1.nextCursor}`, { cookie: ana })).json()) as { items: { at: string }[]; nextCursor: string | null };
+    expect(page2.items.map((i) => i.at)).toEqual(["2026-01-02"]);
+    expect(page2.nextCursor).toBeNull();
+    expect((await call(app, "GET", "log?cursor=bad", { cookie: ana })).status).toBe(400);
+    expect((await call(app, "GET", "log")).status).toBe(401);
+
+    await call(app, "POST", "copies", { cookie: ana, body: { workId: e.workId, format: "Paperback" } });
+    expect(await (await call(app, "GET", "copies", { cookie: ana })).json()).toEqual([expect.objectContaining({ workTitle: "Dune", format: "Paperback" })]);
+  });
+
   test("JSON bodies need Content-Type application/json (415)", async () => {
     const res = await app.fetch(
       new Request(`${BASE}/auth/register`, {