Add robust error handling to prevent dashboard crashes

Added comprehensive error handling to storage metrics parsing to prevent
dashboard crashes when encountering unexpected metric formats or parsing
errors. Dashboard now continues gracefully with empty storage display
instead of crashing, improving reliability during metric format changes.

- Wrapped storage metric parsing in panic recovery
- Added logging for metric parsing failures
- Dashboard shows empty storage on errors instead of crashing
- Ensures dashboard remains functional during agent updates

Cargo.lock

@@ -279,7 +279,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "cm-dashboard"
-version = "0.1.109"
+version = "0.1.110"
 dependencies = [
  "anyhow",
  "chrono",
@@ -301,7 +301,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-agent"
-version = "0.1.109"
+version = "0.1.110"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -324,7 +324,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-shared"
-version = "0.1.109"
+version = "0.1.110"
 dependencies = [
  "chrono",
  "serde",

agent/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-agent"
-version = "0.1.110"
+version = "0.1.111"
 edition = "2021"
 
 [dependencies]

dashboard/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard"
-version = "0.1.110"
+version = "0.1.111"
 edition = "2021"
 
 [dependencies]

dashboard/src/ui/widgets/system.rs

@@ -157,13 +157,17 @@ impl SystemWidget {
         }
     }
 
-    /// Parse storage metrics into pools and drives
+    /// Parse storage metrics into pools and drives  
     fn update_storage_from_metrics(&mut self, metrics: &[&Metric]) {
         let mut pools: std::collections::HashMap<String, StoragePool> = std::collections::HashMap::new();
         
         for metric in metrics {
             if metric.name.starts_with("disk_") {
-                if let Some(pool_name) = self.extract_pool_name(&metric.name) {
+                // Wrap individual metric parsing in error handling
+                if let Ok(pool_name) = std::panic::catch_unwind(std::panic::AssertUnwindSafe(|| {
+                    self.extract_pool_name(&metric.name)
+                })) {
+                    if let Some(pool_name) = pool_name {
                     let mount_point = self.get_mount_point_for_pool(&pool_name);
                     let pool = pools.entry(pool_name.clone()).or_insert_with(|| StoragePool {
                         name: pool_name.clone(),
@@ -328,7 +332,10 @@ impl SystemWidget {
                             }
                         }
                     }
-                }
+                    }  // Close pool_name Some check
+                } else {
+                    tracing::warn!("Failed to extract pool name from metric: {}", metric.name);
+                }  // Close error handling for extract_pool_name
             }
         }
 
@@ -705,8 +712,13 @@ impl Widget for SystemWidget {
             }
         }
 
-        // Update storage from all disk metrics
+        // Update storage from all disk metrics (with error handling)
-        self.update_storage_from_metrics(metrics);
+        if let Err(e) = std::panic::catch_unwind(std::panic::AssertUnwindSafe(|| {
+            self.update_storage_from_metrics(metrics);
+        })) {
+            tracing::error!("Storage metrics parsing failed, continuing with empty storage: {:?}", e);
+            self.storage_pools = Vec::new();
+        }
     }
 
 }

shared/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-shared"
-version = "0.1.110"
+version = "0.1.111"
 edition = "2021"
 
 [dependencies]