feat: Add --list-events debugging improvements and timezone support

- Remove debug event limit to display all events
- Add timezone information to event listing output
- Update DEVELOPMENT.md with latest changes and debugging cycle documentation
- Enhance event parsing with timezone support
- Simplify CalDAV client structure and error handling

Changes improve debugging capabilities for CalDAV event retrieval and provide
better timezone visibility when listing calendar events.

src/config.rs

@@ -77,6 +77,19 @@ pub struct SyncConfig {
     pub retry_delay: u64,
     /// Whether to delete events not found on server
     pub delete_missing: bool,
+    /// Date range configuration
+    pub date_range: DateRangeConfig,
+}
+
+/// Date range configuration for event synchronization
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct DateRangeConfig {
+    /// Number of days ahead to sync
+    pub days_ahead: i64,
+    /// Number of days in the past to sync
+    pub days_back: i64,
+    /// Whether to sync all events regardless of date
+    pub sync_all_events: bool,
 }
 
 impl Default for Config {
@@ -123,6 +136,17 @@ impl Default for SyncConfig {
             max_retries: 3,
             retry_delay: 5,
             delete_missing: false,
+            date_range: DateRangeConfig::default(),
+        }
+    }
+}
+
+impl Default for DateRangeConfig {
+    fn default() -> Self {
+        Self {
+            days_ahead: 7, // Next week
+            days_back: 0,  // Today only
+            sync_all_events: false,
         }
     }
 }