fix: linter errors

src/core/KGDebugger.ts

@@ -513,8 +513,7 @@ export class KGDebugger {
 
         try {
           textarea.selectionStart = textarea.selectionEnd = typed.length;
-        } catch {
-        }
+        } catch { /* setting cursor position can fail in read-only or special inputs */ }
 
         textarea.scrollTop = textarea.scrollHeight;
 
@@ -583,8 +582,7 @@ export class KGDebugger {
 
         try {
           textarea.selectionStart = textarea.selectionEnd = typed.length;
-        } catch {
-        }
+        } catch { /* setting cursor position can fail in read-only or special inputs */ }
 
         textarea.scrollTop = textarea.scrollHeight;
 

src/core/config-upgrader/upgradeConfigToV1.test.ts

@@ -47,9 +47,8 @@ class MockFileHandle {
   async getFile() { return { text: () => Promise.resolve(this._content) }; }
   async createWritable() {
     const w = new MockWritable();
-    const self = this;
     const origClose = w.close.bind(w);
-    w.close = async () => { self._content = w.data; await origClose(); };
+    w.close = async () => { this._content = w.data; await origClose(); };
     return w;
   }
 }

src/core/io/KGProjectStorage.test.ts

@@ -19,10 +19,9 @@ class MockFileSystemFileHandle {
   async createWritable() {
     const stream = new MockFileSystemWritableFileStream();
     // When stream closes, update our content
-    const self = this;
     const origClose = stream.close.bind(stream);
     stream.close = async () => {
-      self._content = stream.data;
+      this._content = stream.data;
       await origClose();
     };
     return stream;