cleanup: wrap console.log calls behind window.DASHCADDY_DEBUG flag

Wrapped 22 console.log calls across 6 files with a debug() helper
that only logs when window.DASHCADDY_DEBUG is true in the browser console.

Files:
- tour-manager.js: 10 calls
- theme-adapter.js: 4 calls
- keyboard-shortcuts.js: 4 calls
- tooltip-definitions.js: 2 calls
- progress-tracker.js: 1 call
- live-events.js: 1 call

console.error and console.warn calls preserved — those indicate
real issues worth seeing in production.

status/js/live-events.js

@@ -11,7 +11,7 @@
 
     es.addEventListener('connected', () => {
       reconnectDelay = 1000; // reset backoff
-      console.log('[SSE] Connected to event stream');
+      debug('[SSE] Connected to event stream');
     });
 
     // Health status changes → update card dots/badges in real time