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/week-rollover.mjs

@@ -0,0 +1,49 @@
+// Pure function for week-rollover logic.
+// Exported separately for testability.
+
+/**
+ * Apply week rollover to state file content.
+ * Returns updated content string if rollover was applied, null otherwise.
+ *
+ * @param {string} stateContent - Full state file content (with YAML frontmatter)
+ * @param {string} currentWeek - Week value from state file (e.g. "2026-W14")
+ * @param {string} actualWeek - Computed current ISO week (e.g. "2026-W15")
+ * @returns {{ content: string, message: string } | null}
+ */
+export function applyWeekRollover(stateContent, currentWeek, actualWeek) {
+  if (!actualWeek) return null;
+
+  // Case 1: current_week is empty — initialize without resetting posts
+  if (!currentWeek) {
+    const updated = stateContent.replace(
+      /^current_week: .*/m,
+      `current_week: "${actualWeek}"`
+    );
+    if (updated === stateContent) return null;
+    return {
+      content: updated,
+      message: `Initialized current_week to ${actualWeek}.`
+    };
+  }
+
+  // Case 2: week matches — no action needed
+  if (currentWeek === actualWeek) return null;
+
+  // Case 3: week changed — reset posts_this_week and update current_week
+  let updated = stateContent;
+  updated = updated.replace(
+    /^posts_this_week: .*/m,
+    'posts_this_week: 0'
+  );
+  updated = updated.replace(
+    /^current_week: .*/m,
+    `current_week: "${actualWeek}"`
+  );
+
+  if (updated === stateContent) return null;
+
+  return {
+    content: updated,
+    message: `Auto-reset: posts_this_week → 0 for new week ${actualWeek} (was ${currentWeek}).`
+  };
+}