Remove debug logging from RRULE handling

Clean up extensive console logging that was added during RRULE debugging.
Removed debug logs from:
- Frontend RRULE generation in create event modal
- Frontend RRULE parsing in calendar service
- Weekly/monthly/yearly occurrence generation functions
- Backend RRULE processing in events and series handlers

The core functionality remains unchanged - this is purely a cleanup
of temporary debugging output that is no longer needed.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

frontend/src/components/create_event_modal.rs

@@ -387,8 +387,6 @@ impl EventCreationData {
             return String::new();
         }
         
-        web_sys::console::log_1(&format!("🔧 Building RRULE with interval: {}, count: {:?}", self.recurrence_interval, self.recurrence_count).into());
-        
         let mut parts = Vec::new();
         
         // Add frequency (required)
@@ -403,9 +401,6 @@ impl EventCreationData {
         // Add interval if not 1
         if self.recurrence_interval > 1 {
             parts.push(format!("INTERVAL={}", self.recurrence_interval));
-            web_sys::console::log_1(&format!("➕ Added INTERVAL={}", self.recurrence_interval).into());
-        } else {
-            web_sys::console::log_1(&format!("⏭️ Skipped INTERVAL (value is {})", self.recurrence_interval).into());
         }
         
         // Add frequency-specific rules
@@ -465,17 +460,11 @@ impl EventCreationData {
         if let Some(until_date) = self.recurrence_until {
             // Format as UNTIL=YYYYMMDDTHHMMSSZ
             parts.push(format!("UNTIL={}T000000Z", until_date.format("%Y%m%d")));
-            web_sys::console::log_1(&format!("➕ Added UNTIL={}", until_date).into());
         } else if let Some(count) = self.recurrence_count {
             parts.push(format!("COUNT={}", count));
-            web_sys::console::log_1(&format!("➕ Added COUNT={}", count).into());
-        } else {
-            web_sys::console::log_1(&format!("⏭️ No COUNT or UNTIL specified").into());
         }
         
-        let rrule = parts.join(";");
-        web_sys::console::log_1(&format!("🎯 Final RRULE: {}", rrule).into());
-        rrule
+        parts.join(";")
     }
 
     pub fn to_create_event_params(&self) -> (String, String, String, String, String, String, String, bool, String, String, Option<u8>, String, String, String, String, String, Vec<bool>, Option<String>) {