Add configurable startup view

tests/startup-view.test.mjs

@@ -0,0 +1,60 @@
+import assert from 'node:assert/strict';
+import { readFile } from 'node:fs/promises';
+import test from 'node:test';
+import { transformWithEsbuild } from 'vite';
+
+const source = await readFile(
+  new URL('../src/lib/utils/startup-view.ts', import.meta.url),
+  'utf8'
+);
+const { code } = await transformWithEsbuild(source, 'startup-view.ts', {
+  loader: 'ts',
+  format: 'esm',
+  target: 'esnext'
+});
+const startup = await import(`data:text/javascript;base64,${Buffer.from(code).toString('base64')}`);
+
+test('normalizes every supported default view and falls back to All Notes', () => {
+  for (const view of ['all', 'quickaccess', 'tasks', 'daily']) {
+    assert.equal(startup.normalizeStartupView(view), view);
+  }
+  assert.equal(startup.normalizeStartupView('notebook'), 'all');
+  assert.equal(startup.normalizeStartupView(undefined), 'all');
+});
+
+test('uses the configured default when session restoration is disabled', () => {
+  assert.deepEqual(startup.resolveStartupTarget({
+    startupView: 'tasks',
+    restoreLastSession: false,
+    lastViewMode: 'daily',
+    lastNotebook: null,
+    lastTag: null
+  }), { mode: 'tasks' });
+});
+
+test('restores a supported previous list when restoration is enabled', () => {
+  assert.deepEqual(startup.resolveStartupTarget({
+    startupView: 'daily',
+    restoreLastSession: true,
+    lastViewMode: 'quickaccess',
+    lastNotebook: null,
+    lastTag: null
+  }), { mode: 'quickaccess' });
+});
+
+test('restores notebook and tag identifiers, otherwise uses the configured default', () => {
+  assert.deepEqual(startup.resolveStartupTarget({
+    startupView: 'all',
+    restoreLastSession: true,
+    lastViewMode: 'notebook',
+    lastNotebook: 'Projects',
+    lastTag: null
+  }), { mode: 'notebook', notebookPath: 'Projects' });
+  assert.deepEqual(startup.resolveStartupTarget({
+    startupView: 'tasks',
+    restoreLastSession: true,
+    lastViewMode: 'tag',
+    lastNotebook: null,
+    lastTag: null
+  }), { mode: 'tasks' });
+});