feat(linkedin-thought-leadership): v1.1.0 — Q2 2026 feature release

9 improvements across 3 tracks:

Onboarding: /linkedin:onboarding wizard, README Quick Start rewrite
Content Quality: voice drift scoring, industry angle variants,
  /linkedin:carousel, /linkedin:react multi-URL comparison
Analytics: automated week-rollover, day-of-week heatmap,
  month-over-month reports

25→27 commands. All Q2 ROADMAP items completed.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

plugins/linkedin-thought-leadership/hooks/scripts/__tests__/week-rollover.test.mjs

@@ -0,0 +1,102 @@
+import { describe, test } from 'node:test';
+import assert from 'node:assert/strict';
+import { applyWeekRollover } from '../week-rollover.mjs';
+
+const SAMPLE_STATE = `---
+last_post_date: "2026-04-05"
+first_post_date: "2026-01-15"
+last_post_topic: "AI strategy"
+posts_this_week: 3
+weekly_goal: 3
+current_streak: 5
+longest_streak: 12
+current_week: "2026-W14"
+last_import_date: "2026-04-01"
+follower_count: 850
+follower_target: 10000
+target_date: "2026-12-31"
+---
+
+## Recent Posts
+- 2026-04-05: AI strategy post
+`;
+
+describe('applyWeekRollover', () => {
+  test('resets posts_this_week to 0 on week change', () => {
+    const result = applyWeekRollover(SAMPLE_STATE, '2026-W14', '2026-W15');
+    assert.notEqual(result, null);
+    assert.match(result.content, /^posts_this_week: 0$/m);
+  });
+
+  test('updates current_week to new week', () => {
+    const result = applyWeekRollover(SAMPLE_STATE, '2026-W14', '2026-W15');
+    assert.notEqual(result, null);
+    assert.match(result.content, /^current_week: "2026-W15"$/m);
+  });
+
+  test('returns descriptive message on rollover', () => {
+    const result = applyWeekRollover(SAMPLE_STATE, '2026-W14', '2026-W15');
+    assert.notEqual(result, null);
+    assert.ok(result.message.includes('2026-W15'));
+    assert.ok(result.message.includes('2026-W14'));
+  });
+
+  test('returns null when week matches (no change needed)', () => {
+    const result = applyWeekRollover(SAMPLE_STATE, '2026-W14', '2026-W14');
+    assert.equal(result, null);
+  });
+
+  test('preserves all other YAML fields unchanged', () => {
+    const result = applyWeekRollover(SAMPLE_STATE, '2026-W14', '2026-W15');
+    assert.notEqual(result, null);
+    assert.match(result.content, /^last_post_date: "2026-04-05"$/m);
+    assert.match(result.content, /^current_streak: 5$/m);
+    assert.match(result.content, /^weekly_goal: 3$/m);
+    assert.match(result.content, /^follower_count: 850$/m);
+  });
+
+  test('preserves markdown body after frontmatter', () => {
+    const result = applyWeekRollover(SAMPLE_STATE, '2026-W14', '2026-W15');
+    assert.notEqual(result, null);
+    assert.ok(result.content.includes('## Recent Posts'));
+    assert.ok(result.content.includes('AI strategy post'));
+  });
+
+  test('initializes current_week when empty without resetting posts', () => {
+    const stateWithEmptyWeek = SAMPLE_STATE.replace(
+      'current_week: "2026-W14"',
+      'current_week: ""'
+    );
+    const result = applyWeekRollover(stateWithEmptyWeek, '', '2026-W15');
+    assert.notEqual(result, null);
+    assert.match(result.content, /^current_week: "2026-W15"$/m);
+    // posts_this_week should NOT be reset (user may have manually tracked)
+    assert.match(result.content, /^posts_this_week: 3$/m);
+  });
+
+  test('returns null when actualWeek is empty', () => {
+    const result = applyWeekRollover(SAMPLE_STATE, '2026-W14', '');
+    assert.equal(result, null);
+  });
+
+  test('returns null when actualWeek is null/undefined', () => {
+    assert.equal(applyWeekRollover(SAMPLE_STATE, '2026-W14', null), null);
+    assert.equal(applyWeekRollover(SAMPLE_STATE, '2026-W14', undefined), null);
+  });
+
+  test('handles year boundary rollover (W52 → W01)', () => {
+    const yearEndState = SAMPLE_STATE.replace('2026-W14', '2025-W52');
+    const result = applyWeekRollover(yearEndState, '2025-W52', '2026-W01');
+    assert.notEqual(result, null);
+    assert.match(result.content, /^posts_this_week: 0$/m);
+    assert.match(result.content, /^current_week: "2026-W01"$/m);
+  });
+
+  test('handles posts_this_week already at 0', () => {
+    const zeroPostsState = SAMPLE_STATE.replace('posts_this_week: 3', 'posts_this_week: 0');
+    const result = applyWeekRollover(zeroPostsState, '2026-W14', '2026-W15');
+    assert.notEqual(result, null);
+    assert.match(result.content, /^posts_this_week: 0$/m);
+    assert.match(result.content, /^current_week: "2026-W15"$/m);
+  });
+});