Set default log level to INFO instead of ERROR

- Update Logger class default from ERROR to INFO
- Update pyodide runtime agent log level parsing defaults
- Ensure INFO is used when RUNT_LOG_LEVEL environment variable is not set
- Matches documented behavior that default is INFO
- Tests continue to explicitly set ERROR level so remain unaffected

Author: rgbkrk

packages/lib/src/logging.ts

@@ -37,7 +37,7 @@ export interface LoggerConfig {
  */
 class Logger {
   private config: LoggerConfig = {
-    level: LogLevel.ERROR,
+    level: LogLevel.INFO,
     console: true,
     service: "runt-agent",
   };

packages/pyodide-runtime-agent/src/mod.ts

@@ -40,13 +40,19 @@ if (import.meta.main) {
         logLevel = LogLevel.ERROR;
         break;
       default:
-        logLevel = LogLevel.ERROR;
+        logLevel = LogLevel.INFO;
     }
 
     logger.configure({
       level: logLevel,
       console: !disableConsole,
     });
+  } else {
+    // Configure with INFO as default when no RUNT_LOG_LEVEL is set
+    logger.configure({
+      level: LogLevel.INFO,
+      console: !disableConsole,
+    });
   }
 
   logger.info("Authenticating...");

packages/pyodide-runtime-agent/src/pyodide-agent.ts

@@ -98,7 +98,7 @@ export class PyodideRuntimeAgent extends RuntimeAgent {
    * Parse log level from environment variable string
    */
   private parseLogLevel(levelStr: string | undefined): LogLevel {
-    if (!levelStr) return LogLevel.ERROR;
+    if (!levelStr) return LogLevel.INFO;
 
     const normalizedLevel = levelStr.toUpperCase();
     switch (normalizedLevel) {
@@ -112,7 +112,7 @@ export class PyodideRuntimeAgent extends RuntimeAgent {
       case "ERROR":
         return LogLevel.ERROR;
       default:
-        return LogLevel.ERROR;
+        return LogLevel.INFO;
     }
   }
 
@@ -180,7 +180,7 @@ export class PyodideRuntimeAgent extends RuntimeAgent {
     // Configure logger from environment variables early if not already configured
     // This ensures RUNT_LOG_LEVEL is respected even when using PyodideRuntimeAgent programmatically
     if (
-      Deno.env.get("RUNT_LOG_LEVEL") && logger.getLevel() === LogLevel.ERROR
+      Deno.env.get("RUNT_LOG_LEVEL") && logger.getLevel() === LogLevel.INFO
     ) {
       this.configureLoggerFromEnvironment();
     }