perf(logger): clean up constructor args after Console initialization

Added memory cleanup by deleting constructor args from WeakMap after Console
is initialized. Once the Console is created, the constructor arguments are
no longer needed and can be garbage collected.

Changes:
- Added privateConstructorArgs.delete(this) in #getConsole()
- Added cleanup in dynamic console method initialization
- Reduces memory footprint for long-lived logger instances

Author: jdalton

src/logger.ts

@@ -391,6 +391,8 @@ export class Logger {
         }
       }
       privateConsole.set(this, con)
+      // Clean up constructor args - no longer needed after Console creation.
+      privateConstructorArgs.delete(this)
     }
     return con
   }
@@ -1559,7 +1561,7 @@ Object.defineProperties(
               // Access Console via WeakMap directly since private methods can't be
               // called from dynamically created functions.
               let con = privateConsole.get(this)
-              if (!con) {
+              if (con === undefined) {
                 // Lazy initialization - this will only happen if someone calls a
                 // dynamically added console method before any core logger method.
                 const constructorArgs = privateConstructorArgs.get(this) || []
@@ -1575,6 +1577,8 @@ Object.defineProperties(
                   }
                 }
                 privateConsole.set(this, con)
+                // Clean up constructor args - no longer needed after Console creation.
+                privateConstructorArgs.delete(this)
               }
               const result = (con as any)[key](...args)
               return result === undefined || result === con ? this : result