Add Plausible custom events + weekly insights dashboard + cron

- Custom Plausible events: Pricing Click, Chat Toggle, Chat Message Sent,
  FAQ Toggle, Speedrun Nav, Mobile Menu Toggle, Scroll Depth (25/50/75/100%)
- Weekly Insights section on launch dashboard with visitor/pageview/bounce
  rate/visit duration/top pages/top referrers + analysis cards
- data/insights.json for storing weekly analytics summaries
- scripts/check-plausible-email.py — finds latest Plausible email via IMAP
- Cron job: every Mon 09:00 PYST, reads Plausible email, writes insights,
  analyzes and implements improvements

scripts/check-plausible-email.py

@@ -0,0 +1,89 @@
+#!/usr/bin/env python3
+"""Check for Plausible analytics email and output raw content for cron analysis."""
+
+import json
+import re
+import subprocess
+import sys
+from datetime import datetime
+from pathlib import Path
+
+HERE = Path(__file__).resolve().parent.parent
+INSIGHTS_FILE = HERE / "data" / "insights.json"
+
+
+def run_cmd(*args, timeout=30):
+    result = subprocess.run(args, capture_output=True, text=True, timeout=timeout)
+    if result.returncode != 0:
+        return None, result.stderr
+    return result.stdout, None
+
+
+def find_plausible_email():
+    """Find the latest Plausible-related email in inbox."""
+    out, err = run_cmd("himalaya", "envelope", "list", "--page", "1", "--page-size", "30")
+    if not out:
+        return None, None
+
+    best_id, best_subject = None, ""
+    current_id, current_subject = None, ""
+    for line in out.splitlines():
+        # himalaya format: "ID | DATE | FROM | SUBJECT"
+        if "|" not in line:
+            continue
+        parts = [p.strip() for p in line.split("|")]
+        if len(parts) < 4:
+            continue
+        try:
+            current_id = int(parts[0])
+        except ValueError:
+            continue
+        current_subject = parts[-1] if len(parts) >= 4 else ""
+
+        subj_lower = current_subject.lower()
+        score = 0
+        if "plausible" in subj_lower:
+            score += 10
+        if "weekly" in subj_lower and ("report" in subj_lower or "analytics" in subj_lower or "stats" in subj_lower):
+            score += 5
+        if "analytics" in subj_lower and "summary" in subj_lower:
+            score += 5
+        if "site" in subj_lower and ("stats" in subj_lower or "report" in subj_lower):
+            score += 3
+
+        if score > 0 and score >= (10 if best_id is None else 0):
+            best_id = current_id
+            best_subject = current_subject
+
+    return best_id, best_subject
+
+
+def main():
+    email_id, subject = find_plausible_email()
+
+    if email_id is None:
+        print("No Plausible email found in inbox.", file=sys.stderr)
+        # Still update last_check timestamp
+        insights = {}
+        if INSIGHTS_FILE.exists():
+            with open(INSIGHTS_FILE) as f:
+                insights = json.load(f)
+        insights["last_check"] = datetime.now().strftime("%Y-%m-%d %H:%M")
+        with open(INSIGHTS_FILE, "w") as f:
+            json.dump(insights, f, indent=2)
+        sys.exit(0)
+
+    content, err = run_cmd("himalaya", "message", "read", str(email_id))
+    if not content:
+        print(f"Failed to read email {email_id}: {err}", file=sys.stderr)
+        sys.exit(0)
+
+    print(f"=== Plausible Email Found ===")
+    print(f"Subject: {subject}")
+    print(f"Email ID: {email_id}")
+    print(f"=== Full Content ===")
+    print(content[:6000])
+
+
+if __name__ == "__main__":
+    main()