feat: session auto-capture + NPC→Initiative push + lore grounding everywhere

- SessionLogger listens for a new LogEntry bus event; dice rolls,
  initiative turns/rounds, generated encounters and calendar day
  advances land in the active session as timestamped entries — the
  raw material the AI summary actually needs. Mute toggle in the
  toolbar (persisted, default on).
- NPC Generator: '⚔ to initiative' button pushes the generated stat
  block (HP) into the tracker via the existing AddCombatants bus event.
- ragQuery now set on Encounter, Quest and Session summary too
  (NPC/Item/World already had it) — every generator is world-grounded.

src/components/CalendarWidget.tsx

@@ -1,5 +1,6 @@
 import { useState, useMemo } from "react";
 import { usePersistentState } from "../lib/usePersistentState";
+import { bus, Events } from "../lib/bus";
 
 // ponytail: the calendar is user-configurable for homebrew campaigns.
 // `months` carry their own day count so a custom calendar can have variable
@@ -106,12 +107,15 @@ export function CalendarWidget() {
   }
 
   function nextDay() {
-    setToday((t) => {
-      let { day, month, year } = t;
-      day += 1;
-      if (day > daysInMonth(config, month)) { day = 1; month += 1; }
-      if (month >= config.months.length) { month = 0; year += 1; }
-      return { day, month, year };
+    let { day, month, year } = today;
+    day += 1;
+    if (day > daysInMonth(config, month)) { day = 1; month += 1; }
+    if (month >= config.months.length) { month = 0; year += 1; }
+    setToday({ day, month, year });
+    // ponytail: the campaign clock ticks — the session log hears about it.
+    const label = config.months[month]?.name ?? String(month + 1);
+    bus.emit(Events.LogEntry, {
+      text: `🗓 Day advanced: ${day} ${label} ${config.yearLabel} ${year} — ${weatherFor(day, month, year)}`,
     });
   }