Drop padding and terminal width detection

Output left + right with a single space separator instead of trying
to right-align to a detected terminal width. Terminal detection is
unreliable when all fds are piped by Claude Code, and hardcoding a
width defeats the purpose. Also removes the x/term dependency.

go.mod

@@ -5,7 +5,6 @@ go 1.25.5
 require (
 	github.com/go-git/go-git/v6 v6.0.0-20260206150416-f623c7555599
 	github.com/shirou/gopsutil/v4 v4.26.1
-	golang.org/x/term v0.39.0
 )
 
 require (

main.go

@@ -3,7 +3,6 @@ package main
 import (
 	"bufio"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -12,11 +11,8 @@ import (
 
 	"github.com/go-git/go-git/v6"
 	"github.com/shirou/gopsutil/v4/process"
-	"golang.org/x/term"
 )
 
-const defaultStatuslineWidth = 80
-
 // TokenUsage tracks context window token consumption.
 type TokenUsage struct {
 	InputTokens          int `json:"input_tokens"`
@@ -72,36 +68,26 @@ func parseStatusInput(jsonStr string) (*StatusInput, error) {
 	return &data, nil
 }
 
-// buildStatusLine constructs the left and right parts of the status line.
-func buildStatusLine(data *StatusInput) (left, right string) {
+// buildStatusLine constructs the formatted status line.
+func buildStatusLine(data *StatusInput) string {
 	contextInfo := formatContextInfo(data.ContextWindow.ContextWindowSize, data.ContextWindow.CurrentUsage)
 	dirName := filepath.Base(data.Workspace.CurrentDir)
 	giteaStatus := getGiteaStatus()
 	gitInfo := getGitInfo(data.Workspace.CurrentDir)
 
-	left = fmt.Sprintf("%s %s%s%s %s➜%s %s%s%s%s",
+	left := fmt.Sprintf("%s %s%s%s %s➜%s %s%s%s%s",
 		giteaStatus,
 		magenta, data.Model.DisplayName, reset,
 		boldGreen, reset,
 		cyan, dirName, reset,
 		gitInfo)
 
-	right = fmt.Sprintf("%s%s%s", yellow, contextInfo, reset)
-	return left, right
-}
+	right := fmt.Sprintf("%s%s%s", yellow, contextInfo, reset)
 
-// calculatePadding returns the number of spaces needed for padding.
-func calculatePadding(leftVisible, rightVisible string, termWidth int) int {
-	return max(termWidth-len(leftVisible)-len(rightVisible), 1)
-}
-
-// formatOutput combines left, right, and padding into final output.
-func formatOutput(left, right string, padding int) string {
-	return fmt.Sprintf("%s%s%s", left, strings.Repeat(" ", padding), right)
+	return left + " " + right
 }
 
 // run reads JSON from r, builds the statusline, and writes it to w.
-// Returns an error if the input cannot be parsed.
 func run(r *bufio.Reader, w *strings.Builder) error {
 	jsonStr := readInputFromStdin(r)
 
@@ -110,20 +96,7 @@ func run(r *bufio.Reader, w *strings.Builder) error {
 		return fmt.Errorf("error parsing JSON: %w", err)
 	}
 
-	left, right := buildStatusLine(data)
-
-	// Calculate visible lengths (strip ANSI)
-	leftVisible := stripANSI(left)
-	rightVisible := stripANSI(right)
-
-	// Get terminal width
-	termWidth := getTerminalWidth()
-
-	// Calculate and apply padding
-	padding := calculatePadding(leftVisible, rightVisible, termWidth)
-	output := formatOutput(left, right, padding)
-
-	w.WriteString(output)
+	w.WriteString(buildStatusLine(data))
 	return nil
 }
 
@@ -212,34 +185,6 @@ func getGitInfo(cwd string) string {
 	return fmt.Sprintf(" git:(%s)", branch)
 }
 
-// termWidthFunc returns the usable status line width.
-// Checks STATUSLINE_WIDTH env var first (set in Claude Code settings),
-// then tries terminal detection on stderr/stdin/stdout, then falls back
-// to defaultStatuslineWidth.
-// Replaced in tests to avoid depending on a real TTY.
-var termWidthFunc = func() (int, error) {
-	if sw := os.Getenv("STATUSLINE_WIDTH"); sw != "" {
-		var w int
-		if _, err := fmt.Sscanf(sw, "%d", &w); err == nil && w > 0 {
-			return w, nil
-		}
-	}
-	for _, fd := range []uintptr{os.Stderr.Fd(), os.Stdin.Fd(), os.Stdout.Fd()} {
-		if width, _, err := term.GetSize(int(fd)); err == nil {
-			return width, nil
-		}
-	}
-	return 0, errors.New("no terminal detected")
-}
-
-func getTerminalWidth() int {
-	width, err := termWidthFunc()
-	if err != nil {
-		return defaultStatuslineWidth
-	}
-	return width
-}
-
 var ansiRegex = regexp.MustCompile(`\x1b\[[0-9;]*m`)
 
 func stripANSI(s string) string {