Remove console.log, add skill

Author: vbabich

.github/copilot/skills/use-log-debug.md

@@ -0,0 +1,56 @@
+# Skill: Use log.debug Instead of console.log
+
+When adding debug logging in JavaScript/TypeScript files in this codebase, use the `@deephaven/log` module instead of `console.log` or `console.debug`.
+
+## Pattern
+
+1. **Import the Log module** at the top of the file:
+   ```typescript
+   import Log from '@deephaven/log';
+   ```
+
+2. **Create a module-specific logger** after imports:
+   ```typescript
+   const log = Log.module('ModuleName');
+   ```
+   Replace `'ModuleName'` with the name of the current file/module (e.g., `'ChartUtils'`, `'TableUtils'`).
+
+3. **Use the logger** for debug output:
+   ```typescript
+   log.debug('message', data);
+   log.debug2('more verbose message', data);  // For very verbose logging
+   ```
+
+## Why
+
+- Consistent logging across the codebase
+- Log levels can be configured at runtime
+- Module-specific filtering is possible
+- Avoids ESLint `no-console` warnings
+- Better production behavior (logs can be silenced)
+
+## Example
+
+```typescript
+import Log from '@deephaven/log';
+
+const log = Log.module('MyComponent');
+
+function processData(data: SomeType): void {
+  log.debug('Processing data:', data);
+  // ... processing logic
+  log.debug2('Detailed step completed');
+}
+```
+
+## Avoid
+
+```typescript
+// ❌ Don't use console directly
+console.log('Processing data:', data);
+console.debug('Step completed');
+
+// ❌ Don't add eslint-disable for console
+// eslint-disable-next-line no-console
+console.log('debug info');
+```

packages/dashboard-core-plugins/src/GridWidgetPlugin.tsx

@@ -159,8 +159,6 @@ export function GridWidgetPlugin({
     );
   }
 
-  console.log('[0]');
-
   assertNotNull(model, 'Model should be defined when fetch is successful');
 
   return (

packages/dashboard-core-plugins/src/panels/WidgetPanelTooltip.tsx

@@ -9,7 +9,7 @@ function WidgetPanelTooltip(props: WidgetPanelTooltipProps): ReactElement {
 
   // Convert PascalCase to Title Case
   // ex. PartitionedTable -> Partitioned Table
-  const formattedType = type.replace(/([a-z])([A-Z])/g, '$1 $2');
+  const formattedType = type?.replace(/([a-z])([A-Z])/g, '$1 $2') ?? '';
 
   return (
     <div className="tab-tooltip-grid-container">