Bump to v2.0.0: daily emote rotation + expanded sound library

- Emote face is now stable all day; /wake picks a fresh random face each
  morning instead of rotating every 5 minutes. Removes EMOTE_ROTATION_INTERVAL
  and last_emote_change entirely.
- Added 10 new synthesized sounds for /notify: doorbell, knock, ding, blip,
  siren, tada, ping, bubble, fanfare, and alarm (loops until tapped or TTL
  expires). stopAlarm() wired into tap handler and handleStateChange().
- openapi.yaml: new sound names added to enum.
- CLAUDE.md / README.md updated to reflect both changes.

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

index.html

@@ -217,7 +217,7 @@
 			const emoteEl = document.getElementById("emote");
 			const messageEl = document.getElementById("message");
 			const POLL_INTERVAL = 2000;
-			const VERSION = "v1.5.0";
+			const VERSION = "v2.0.0";
 
 			// Sound system
 			let audioCtx = null;
@@ -304,8 +304,69 @@
 				setTimeout(() => playTone(1047, 0.2), 300);
 			}
 
+			function playDoorbellSound() {
+				playTone(880, 0.3, "sine", 0.12);
+				setTimeout(() => playTone(659, 0.4, "sine", 0.12), 350);
+			}
+			function playKnockSound() {
+				playTone(200, 0.08, "square", 0.15);
+				setTimeout(() => playTone(200, 0.08, "square", 0.15), 150);
+				setTimeout(() => playTone(200, 0.08, "square", 0.15), 300);
+			}
+			function playDingSound() {
+				playTone(1046, 0.4, "sine", 0.1);
+			}
+			function playBlipSound() {
+				playTone(1200, 0.05, "sine", 0.07);
+			}
+			function playSirenSound() {
+				playTone(880, 0.15, "sawtooth", 0.12);
+				setTimeout(() => playTone(660, 0.15, "sawtooth", 0.12), 180);
+				setTimeout(() => playTone(880, 0.15, "sawtooth", 0.12), 360);
+				setTimeout(() => playTone(660, 0.15, "sawtooth", 0.12), 540);
+			}
+			function playTadaSound() {
+				playTone(392, 0.08, "sine", 0.1);
+				setTimeout(() => playTone(392, 0.08, "sine", 0.1), 100);
+				setTimeout(() => playTone(784, 0.4, "sine", 0.13), 220);
+			}
+			function playPingSound() {
+				playTone(1047, 0.15, "sine", 0.1);
+			}
+			function playBubbleSound() {
+				playTone(400, 0.06, "sine", 0.06);
+				setTimeout(() => playTone(600, 0.04, "sine", 0.04), 40);
+			}
+			function playFanfareSound() {
+				playTone(523, 0.1, "sine", 0.1);
+				setTimeout(() => playTone(659, 0.1, "sine", 0.1), 120);
+				setTimeout(() => playTone(784, 0.1, "sine", 0.1), 240);
+				setTimeout(() => playTone(1047, 0.15, "sine", 0.12), 360);
+				setTimeout(() => playTone(784, 0.08, "sine", 0.1), 520);
+				setTimeout(() => playTone(1047, 0.3, "sine", 0.15), 620);
+			}
+
+			// Alarm — loops until manually stopped
+			let alarmInterval = null;
+			function playAlarmTick() {
+				playTone(880, 0.15, "square", 0.2);
+				setTimeout(() => playTone(660, 0.15, "square", 0.2), 200);
+			}
+			function startAlarm() {
+				if (alarmInterval) return;
+				playAlarmTick();
+				alarmInterval = setInterval(playAlarmTick, 500);
+			}
+			function stopAlarm() {
+				if (alarmInterval) {
+					clearInterval(alarmInterval);
+					alarmInterval = null;
+				}
+			}
+
 			// Play sound by name
 			function playSoundByName(name) {
+				if (name === "alarm") { startAlarm(); return; }
 				const sounds = {
 					chime: playChimeSound,
 					alert: playAlertSound,
@@ -314,6 +375,15 @@
 					success: playSuccessSound,
 					notify: playNotifySound,
 					recovery: playRecoverySound,
+					doorbell: playDoorbellSound,
+					knock: playKnockSound,
+					ding: playDingSound,
+					blip: playBlipSound,
+					siren: playSirenSound,
+					tada: playTadaSound,
+					ping: playPingSound,
+					bubble: playBubbleSound,
+					fanfare: playFanfareSound,
 				};
 				if (sounds[name]) {
 					sounds[name]();
@@ -333,6 +403,7 @@
 					playSoundByName(customSound);
 					lastCustomSound = customSound;
 				} else if (!customSound) {
+					stopAlarm();          // stop any looping alarm
 					lastCustomSound = null;
 				}
 
@@ -363,6 +434,7 @@
 
 			// Handle tap - enable sound and show reaction
 			document.body.addEventListener("click", () => {
+				stopAlarm();  // stop any looping alarm
 				// Enable sound on first tap (browser autoplay policy)
 				if (!soundEnabled) {
 					soundEnabled = true;