Add telemetry for user-facing notifications (#48558)
## Summary
Adds a "Notification Shown" telemetry event that fires whenever a
user-facing notification is displayed in Zed. This helps the team
understand error patterns, notification frequency, and which parts of
the application generate the most notifications.
## Event Schema
| Property | Type | Description |
|----------|------|-------------|
| `notification_type` | `string` | `"error"` or `"notification"` |
| `source` | `string` | Origin category (e.g., `lsp`, `git`, `settings`,
`editor`) |
| `lsp_name` | `string?` | Language server name (only for LSP
notifications) |
| `level` | `string?` | Severity: `"critical"`, `"warning"`, or `"info"`
|
| `has_actions` | `bool` | Whether the notification has action buttons |
| `notification_id` | `string` | Debug string of the NotificationId |
| `is_auto_dismissing` | `bool` | Whether the notification
auto-dismisses |
## NotificationSource Categories
A new `NotificationSource` enum categorizes notifications by origin:
- `lsp` - Language server notifications
- `settings` - Settings/keymap parse errors
- `update` - App updates, release notes
- `extension` - Extension suggestions/errors
- `git` - Git operations, commit errors
- `project` - Project-level issues
- `collab` - Collaboration notifications
- `remote` - SSH/remote project errors
- `file` - File access errors
- `editor` - Editor operations (search, encoding)
- `agent` - AI assistant notifications
- `cli` - CLI installation
- `system` - Generic fallback
## Privacy
**Message content is intentionally not included** in telemetry because:
- LSP messages come from external servers and may contain file paths or
error chains
- Error messages may contain sensitive paths or API-related information
- The metadata alone provides sufficient insight for error tracking
## Implementation
Updated function signatures to include `NotificationSource`:
- `show_notification(id, source, cx, build_fn)`
- `show_toast(toast, source, cx)`
- `show_error(err, source, cx)`
- `show_app_notification(id, source, cx, build_fn)`
- `notify_err(workspace, source, cx)`
- `notify_async_err(source, cx)`
- `notify_app_err(source, cx)`
- `detach_and_notify_err(source, window, cx)`
Release Notes
- N/A (internal telemetry change)
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Co-authored-by: Zed Zippy <234243425+zed-zippy[bot]@users.noreply.github.com>
