Add Timelog: show the timer in the tab title and simplify the code

This is the first commit of the project, at the state that runs on
timelog.minhtrannhat.com.

Changes in this state:
- Remove redundant UI text from the sidebar, timer and insights pages.
- Show the remaining time and tag in the browser tab title while a
  session runs.
- Put the shared record type and the due and end helpers in
  src/shared/record.ts.
- Remove the startup tag migration and the one-time Forest import
  script. The live data does not need them.
- Remove unused CSS, Playwright ignore rules and duplicate helpers.
- Do not track Forest CSV exports, because they contain private data.

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

tests/api.test.ts

@@ -0,0 +1,52 @@
+import { afterAll, beforeAll, expect, test } from "bun:test";
+import { mkdtemp, rm } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import type { TimeRecord } from "../src/shared/record.ts";
+
+let processHandle: ReturnType<typeof Bun.spawn>;
+let folder: string;
+const port = 33000 + Math.floor(Math.random() * 10000);
+const base = `http://127.0.0.1:${port}`;
+
+beforeAll(async () => {
+  folder = await mkdtemp(join(tmpdir(), "timelog-api-test-"));
+  processHandle = Bun.spawn([process.execPath, "src/api/server.ts"], {
+    cwd: process.cwd(),
+    env: { ...process.env, API_PORT: String(port), DB_PATH: join(folder, "test.sqlite"),
+      PUBLIC_ORIGIN: "http://localhost:3000", DEV_AUTH: "1" },
+    stdout: "ignore", stderr: "pipe",
+  });
+  for (let attempt = 0; attempt < 40; attempt++) {
+    try { if ((await fetch(`${base}/api/health`)).ok) return; } catch {}
+    await Bun.sleep(50);
+  }
+  throw new Error("API did not start");
+});
+
+afterAll(async () => {
+  processHandle?.kill();
+  await processHandle?.exited;
+  if (folder) await rm(folder, { recursive: true, force: true });
+});
+
+test("sync is idempotent and completes a due session at its target", async () => {
+  const startMs = Date.now() - 10_000;
+  const record: TimeRecord = {
+    id: "session_integration_123", startMs, endMs: null, targetSeconds: 5,
+    tag: "job hunting", note: "", treeType: "", isSuccess: null, source: "timer",
+    rawStart: null, rawEnd: null, deleted: false,
+  };
+  const request = { operations: [{ id: "op_integration_123", record }] };
+  const options = { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify(request) };
+  expect((await fetch(`${base}/api/operations`, options)).status).toBe(200);
+  expect((await fetch(`${base}/api/operations`, options)).status).toBe(200);
+  const state = await (await fetch(`${base}/api/state?since=0`)).json() as {
+    records: TimeRecord[]; cursor: number;
+  };
+  expect(state.records).toHaveLength(1);
+  expect(state.records[0]!.endMs).toBe(startMs + 5000);
+  expect(state.records[0]!.isSuccess).toBe(true);
+  expect(state.records[0]!.tag).toBe("Job Hunting");
+  expect(state.cursor).toBe(2);
+});