chore: improve license validation log message (#17967)

* chore: improve license validation log message

Change license validation error log to ERROR level.

Several enterprise features don't affect functional correctness but impact
performance significantly. Users have experienced unexplained performance
degradation due to expired licenses.

This change helps users identify such issues faster.

* improve the license error message

* tweak log msg

---------

Co-authored-by: BohuTANG <[email protected]>

Author: dantengsky

src/query/service/src/interpreters/interpreter.rs

@@ -91,6 +91,20 @@ pub trait Interpreter: Sync + Send {
 
         ctx.set_status_info("building pipeline");
         ctx.check_aborting().with_context(make_error)?;
+
+        let enable_disk_cache = match LicenseManagerSwitch::instance()
+            .check_license(ctx.get_license_key())
+        {
+            Ok(_) => true,
+            Err(e) => {
+                log::error!(
+                        "[Interpreter] CRITICAL ALERT: License validation FAILED - enterprise features DISABLED, System may operate in DEGRADED MODE with LIMITED CAPABILITIES and REDUCED PERFORMANCE. Please contact us at https://www.databend.com/contact-us/ or email [email protected] to restore full functionality: {}",
+                        e
+                    );
+                false
+            }
+        };
+
         if self.is_ddl() {
             CommitInterpreter::try_create(ctx.clone())?
                 .execute2()
@@ -175,7 +189,7 @@ fn log_query_start(ctx: &QueryContext) {
     }
 
     if let Err(error) = InterpreterQueryLog::log_start(ctx, now, None) {
-        error!("interpreter.start.error: {:?}", error)
+        error!("[Interpreter] Query start logging failed: {:?}", error)
     }
 }
 
@@ -192,7 +206,7 @@ fn log_query_finished(ctx: &QueryContext, error: Option<ErrorCode>, has_profiles
     }
 
     if let Err(error) = InterpreterQueryLog::log_finish(ctx, now, error, has_profiles) {
-        error!("interpreter.finish.error: {:?}", error)
+        error!("[Interpreter] Query finish logging failed: {:?}", error)
     }
 }