chore: removed some todos

FEATURES.md

@@ -264,7 +264,7 @@
 Buffers are in-memory representations of files. A buffer exists for each open file.
 
 ### Buffer Model
-- [ ] Buffer struct (id, filename, lines, modified flag, cursor position)
+- [x] Buffer struct (id, filename, lines, modified flag, cursor position)
 - [ ] Buffer list/manager
 - [ ] Current buffer tracking
 - [ ] Buffer-local settings (tabstop, filetype, etc.)

internal/action/command.go

@@ -137,7 +137,6 @@ func (a CommandExecute) Execute(m Model) tea.Cmd {
 
 	cmd, err := a.Registry.Execute(m, cmdLine)
 	if err != nil {
-		// TODO: Display error message to user
 		m.SetCommandError(err)
 		return nil
 	}

internal/core/window.go

@@ -1,6 +1,5 @@
 package core
 
-// TODO: No more global settings, window-wide settings
 type WinOptions struct {
 	Number         bool
 	RelativeNumber bool
@@ -44,10 +43,7 @@ type Window struct {
 // of the content or attempt to be "above" the content (negative value).
 func (w *Window) clampCursor() {
 	// Clamp line to valid range [0, lineCount-1]
-	maxLine := w.Buffer.LineCount() - 1
+	maxLine := max(w.Buffer.LineCount()-1, 0)
-	if maxLine < 0 {
-		maxLine = 0 // Empty buffer edge case
-	}
 	if w.Cursor.Line < 0 {
 		w.Cursor.Line = 0
 	} else if w.Cursor.Line > maxLine {

internal/editor/helpers_test.go

@@ -10,6 +10,7 @@ import (
 )
 
 // NOTE: Lots of this actually sucks ass, but it works for now...
+// TODO: Refactor this to implement the builder pattern
 
 // sendKeys sends a sequence of keys to the test model
 func sendKeys(tm *teatest.TestModel, keys ...string) {

internal/editor/model.go

@@ -41,7 +41,7 @@ type Model struct {
 	commandError  error
 	commandOutput string
 
-	// Global settings (TODO: This needs to be refactored)
+	// Global settings
 	settings core.EditorSettings
 
 	// Registers