# Bug 001: Template Error in Notes Tab

**Status:** Resolved
**Severity:** High (Runtime Panic/Error)
**Component:** Frontend/Handlers

## Description
The `notes-tab` template attempts to render the `error-banner` partial, which expects an `.Errors` field in the data context. However, the `HandleNotes` handler was passing an anonymous struct containing only `Notes`, causing a template execution error.

## Root Cause
Mismatch between template expectation (`{{.Errors}}`) and handler data structure (`struct { Notes []models.Note }`).

## Fix
Updated `HandleNotes` in `internal/handlers/tabs.go` to include `Errors []string` in the data struct passed to the template.

## Verification
A reproduction test case `internal/handlers/template_test.go` was created to verify that the `notes-tab` template can be successfully executed with the updated data structure.