chore: make pre-commit resilient when cargo absent

.githooks/pre-commit

@@ -1,11 +1,22 @@
 #!/usr/bin/env bash
+# This repository uses a custom hooks directory (.githooks). To enable this pre-commit hook run:
+#   git config core.hooksPath .githooks
+# Ensure this file is executable: chmod +x .githooks/pre-commit
 set -euo pipefail
 
 echo "[pre-commit] Running cargo fmt --all" >&2
 
 if ! command -v cargo >/dev/null 2>&1; then
-  echo "[pre-commit] cargo not found in PATH" >&2
-  exit 1
+  # Try loading rustup environment (common install path)
+  if [ -f "$HOME/.cargo/env" ]; then
+    # shellcheck source=/dev/null
+    . "$HOME/.cargo/env"
+  fi
+fi
+
+if ! command -v cargo >/dev/null 2>&1; then
+  echo "[pre-commit] cargo not found in PATH; skipping fmt (install Rust or adjust PATH)." >&2
+  exit 0
 fi
 
 cargo fmt --all

socktop_agent/src/metrics.rs

@@ -476,8 +476,8 @@ pub async fn collect_processes_all(state: &AppState) -> ProcessesPayload {
                 }
             })
             .collect();
-    // Automatic scaling (enabled by default): if sum of per-process CPU exceeds global
-    // CPU by >5%, scale all process CPU values proportionally so the sum matches global.
+        // Automatic scaling (enabled by default): if sum of per-process CPU exceeds global
+        // CPU by >5%, scale all process CPU values proportionally so the sum matches global.
         if std::env::var("SOCKTOP_AGENT_SCALE_PROC_CPU")
             .map(|v| v != "0")
             .unwrap_or(true)
@@ -486,8 +486,8 @@ pub async fn collect_processes_all(state: &AppState) -> ProcessesPayload {
             let global = sys.global_cpu_usage();
             if sum > 0.0 && global > 0.0 {
                 let scale = global / sum;
-        if scale < 0.95 {
-            // only scale if we're at least 5% over
+                if scale < 0.95 {
+                    // only scale if we're at least 5% over
                     for p in &mut list {
                         p.cpu_usage = (p.cpu_usage * scale).clamp(0.0, 100.0);
                     }