fix: Support valkey-cli in cache_health_check for Valkey-only setups

- Try valkey-cli first (preferred for Valkey installations)
- Fall back to redis-cli (for Redis installations)
- Fall back to TCP connection test (works for both)

This fixes environments that only have Valkey installed without
Redis symlinks or redis-cli.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

src/core/bootstrap/bootstrap_utils.rs

@@ -93,21 +93,34 @@ pub fn vault_health_check() -> bool {
 
 /// Check if Valkey/Redis cache is healthy
 pub fn cache_health_check() -> bool {
-    // Try to PING the cache server
+    // Try valkey-cli first (preferred for Valkey installations)
-    match Command::new("redis-cli")
+    if let Ok(output) = Command::new("valkey-cli")
         .args(["-h", "127.0.0.1", "-p", "6379", "ping"])
         .output()
     {
-        Ok(output) => {
         if output.status.success() {
             let response = String::from_utf8_lossy(&output.stdout);
-                response.trim().to_uppercase() == "PONG"
+            if response.trim().to_uppercase() == "PONG" {
-            } else {
+                return true;
-                false
             }
         }
-        Err(_) => {
+    }
-            // If redis-cli is not available, try TCP connection
+
+    // Try redis-cli as fallback (for Redis installations)
+    if let Ok(output) = Command::new("redis-cli")
+        .args(["-h", "127.0.0.1", "-p", "6379", "ping"])
+        .output()
+    {
+        if output.status.success() {
+            let response = String::from_utf8_lossy(&output.stdout);
+            if response.trim().to_uppercase() == "PONG" {
+                return true;
+            }
+        }
+    }
+
+    // If CLI tools are not available, try TCP connection test
+    // This works for both Valkey and Redis
     match Command::new("sh")
         .arg("-c")
         .arg("timeout 1 bash -c '</dev/tcp/127.0.0.1/6379' 2>/dev/null")
@@ -117,8 +130,6 @@ pub fn cache_health_check() -> bool {
         Err(_) => false,
     }
 }
-    }
-}
 
 /// Get current user safely
 pub fn safe_fuser() -> String {