Improve temperature proxy detection

internal/monitoring/monitor.go

@@ -30,6 +30,7 @@ import (
 	"github.com/rcourtman/pulse-go-rewrite/internal/models"
 	"github.com/rcourtman/pulse-go-rewrite/internal/notifications"
 	"github.com/rcourtman/pulse-go-rewrite/internal/system"
+	"github.com/rcourtman/pulse-go-rewrite/internal/tempproxy"
 	"github.com/rcourtman/pulse-go-rewrite/internal/types"
 	"github.com/rcourtman/pulse-go-rewrite/internal/websocket"
 	agentsdocker "github.com/rcourtman/pulse-go-rewrite/pkg/agents/docker"
@@ -3459,17 +3460,24 @@ func (m *Monitor) GetConnectionStatuses() map[string]bool {
 
 // HasSocketTemperatureProxy reports whether the local unix socket proxy is available.
 func (m *Monitor) HasSocketTemperatureProxy() bool {
+	// Always check the real socket path first so we reflect the actual runtime state
+	// even if the temperature collector hasn't latched onto the proxy yet.
+	if tempproxy.NewClient().IsAvailable() {
+		return true
+	}
+
 	if m == nil {
 		return false
 	}
 
 	m.mu.RLock()
-	defer m.mu.RUnlock()
+	collector := m.tempCollector
+	m.mu.RUnlock()
 
-	if m.tempCollector == nil {
+	if collector == nil {
 		return false
 	}
-	return m.tempCollector.SocketProxyDetected()
+	return collector.SocketProxyDetected()
 }
 
 // SocketProxyHostDiagnostics exposes per-host proxy cooldown state for diagnostics.

internal/monitoring/monitor_proxy_test.go

@@ -0,0 +1,23 @@
+package monitoring
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestMonitorHasSocketTemperatureProxyDetectsEnvSocket(t *testing.T) {
+	dir := t.TempDir()
+	socketPath := filepath.Join(dir, "pulse-sensor-proxy.sock")
+
+	if err := os.WriteFile(socketPath, []byte("socket-placeholder"), 0o600); err != nil {
+		t.Fatalf("failed to create fake socket: %v", err)
+	}
+
+	t.Setenv("PULSE_SENSOR_PROXY_SOCKET", socketPath)
+
+	monitor := &Monitor{}
+	if !monitor.HasSocketTemperatureProxy() {
+		t.Fatalf("expected monitor to detect proxy socket at %s", socketPath)
+	}
+}

scripts/install-sensor-proxy.sh

@@ -1520,17 +1520,40 @@ write_control_plane_token() {
 ensure_control_plane_config() {
     local pulse_url="$1"
     local refresh="$2"
+    local config_file="/etc/pulse-sensor-proxy/config.yaml"
+
     if [[ -z "$pulse_url" ]]; then
         return
     fi
     if [[ -z "$refresh" ]]; then
         refresh=60
     fi
-    if grep -q "^pulse_control_plane:" /etc/pulse-sensor-proxy/config.yaml 2>/dev/null; then
+
+    if grep -q "^pulse_control_plane:" "$config_file" 2>/dev/null; then
+        # Re-write the existing control-plane block with the latest URL/token path.
+        local tmp
+        tmp=$(mktemp)
+        awk -v url="$pulse_url" -v refresh="$refresh" '
+            BEGIN { in_block = 0 }
+            /^pulse_control_plane:/ {
+                print "pulse_control_plane:"
+                print "  url: " url
+                print "  token_file: /etc/pulse-sensor-proxy/.pulse-control-token"
+                print "  refresh_interval: " refresh
+                print ""
+                in_block = 1
+                next
+            }
+            # Exit the replacement block when we hit a non-indented line
+            in_block && /^[^[:space:]]/ { in_block = 0 }
+            in_block { next }
+            { print }
+        ' "$config_file" > "$tmp"
+        mv "$tmp" "$config_file"
         return
     fi
 
-    cat >> /etc/pulse-sensor-proxy/config.yaml << EOF
+    cat >> "$config_file" << EOF
 
 # Pulse control plane configuration (auto-generated)
 pulse_control_plane: