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/scripts/analytics/src/models/types.ts

@@ -65,6 +65,55 @@ export interface Alert {
   deviations: number;
 }
 
+export interface DayOfWeekMetrics {
+  dayName: string; // "Monday" through "Sunday"
+  dayIndex: number; // 1=Monday, 7=Sunday (ISO weekday)
+  postCount: number;
+  avgImpressions: number;
+  avgEngagementRate: number;
+  bestPost?: PostAnalytics;
+}
+
+export interface HeatmapReport {
+  generatedAt: string;
+  postsAnalyzed: number;
+  dateRange: { from: string; to: string };
+  byDayOfWeek: DayOfWeekMetrics[]; // 7 entries, Mon-Sun ordered
+  bestDayImpressions: string;
+  bestDayEngagement: string;
+}
+
+export interface MonthlyReport {
+  month: string; // "YYYY-MM"
+  generatedAt: string;
+  summary: {
+    totalPosts: number;
+    totalImpressions: number;
+    totalReactions: number;
+    totalComments: number;
+    totalShares: number;
+    totalClicks: number;
+    avgEngagementRate: number;
+    avgImpressionsPerPost: number;
+  };
+  topPerformers: PostAnalytics[];
+  byWeek: {
+    week: string;
+    postCount: number;
+    avgImpressions: number;
+    avgEngagementRate: number;
+  }[];
+  trends: {
+    comparedTo: string | null;
+    percentChange: {
+      impressions: number | null;
+      engagement: number | null;
+      postCount: number | null;
+    };
+  };
+  alerts: Alert[];
+}
+
 export const ALERT_THRESHOLDS = {
   spike: 2.0,
   drop: -1.5,