feat: add portable Claude Code statusline kit

Replicating the cship-based statusline across machines meant manually
copying three files and hand-editing settings.json with per-user absolute
paths — error-prone and slow. Bundling the assets with an idempotent
installer that resolves the pwsh path at runtime and merges into an
existing settings.json makes rollout a single command per PC.

.gitignore

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+# Local install artefacts / backups
+*.bak
+settings.json.bak

README.md

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+[English](#english) | [Deutsch](#deutsch)
+
+---
+
+## English
+
+# Claude Code Statusline Kit
+
+A portable, self-contained kit that installs a custom Claude Code statusline
+(built on the [`cship`](https://cship.dev) Starship fork) onto any Windows PC
+with a single command.
+
+### What it installs
+
+| Asset                         | Target location            | Purpose                                   |
+| ----------------------------- | -------------------------- | ----------------------------------------- |
+| `assets/cship.exe`            | `~/.local/bin/`            | Renders the statusline                    |
+| `assets/cship.toml`           | `~/.config/`               | Module config (colors, icons, bars)       |
+| `assets/cship-statusline.ps1` | `~/.claude/`               | Wrapper (progress bars, token formatting) |
+| `statusLine` block            | `~/.claude/settings.json`  | Wires everything into Claude Code         |
+
+### Requirements
+
+- **PowerShell 7** (`pwsh`). Install: `winget install --id Microsoft.PowerShell -e`
+- A terminal font with **emoji / Nerd-Font glyphs** (e.g. Cascadia Code,
+  JetBrainsMono Nerd Font) so `🤖 ⚡ 🧠 █░` render correctly.
+
+### Install on a new PC
+
+```powershell
+git clone <your-repo-url> Claude_Statusline
+cd Claude_Statusline
+.\install.ps1
+```
+
+Then restart Claude Code (or start a new session).
+
+The installer is **idempotent** — run it again anytime. It auto-detects the
+`pwsh` path on the target machine and merges the `statusLine` block into an
+existing `settings.json` **without** overwriting your other settings (a
+`.bak` backup is written first).
+
+### Options
+
+- `.\install.ps1 -Force` — also overwrite an existing `~/.config/cship.toml`
+  (by default an existing config is kept, so local tweaks survive).
+
+### Updating the kit
+
+Edit the files under `assets/`, commit, `git push`. On another PC:
+
+```powershell
+git pull
+.\install.ps1 -Force
+```
+
+---
+
+## Deutsch
+
+# Claude Code Statusline Kit
+
+Ein portables, in sich geschlossenes Kit, das eine individuelle Claude-Code-
+Statusline (basierend auf dem Starship-Fork [`cship`](https://cship.dev)) mit
+einem einzigen Befehl auf jeden Windows-PC installiert.
+
+### Was installiert wird
+
+| Asset                         | Zielort                    | Zweck                                    |
+| ----------------------------- | -------------------------- | ---------------------------------------- |
+| `assets/cship.exe`            | `~/.local/bin/`            | Rendert die Statusline                   |
+| `assets/cship.toml`           | `~/.config/`               | Modul-Konfiguration (Farben, Icons, Bars)|
+| `assets/cship-statusline.ps1` | `~/.claude/`               | Wrapper (Progress-Bars, Token-Format)    |
+| `statusLine`-Block            | `~/.claude/settings.json`  | Verdrahtet alles in Claude Code          |
+
+### Voraussetzungen
+
+- **PowerShell 7** (`pwsh`). Installation: `winget install --id Microsoft.PowerShell -e`
+- Ein Terminal-Font mit **Emoji-/Nerd-Font-Glyphen** (z. B. Cascadia Code,
+  JetBrainsMono Nerd Font), damit `🤖 ⚡ 🧠 █░` korrekt dargestellt werden.
+
+### Installation auf einem neuen PC
+
+```powershell
+git clone <deine-repo-url> Claude_Statusline
+cd Claude_Statusline
+.\install.ps1
+```
+
+Danach Claude Code neu starten (oder eine neue Session öffnen).
+
+Der Installer ist **idempotent** — jederzeit erneut ausführbar. Er erkennt den
+`pwsh`-Pfad auf dem Zielrechner automatisch und fügt den `statusLine`-Block in
+eine vorhandene `settings.json` ein, **ohne** deine anderen Einstellungen zu
+überschreiben (vorher wird ein `.bak`-Backup geschrieben).
+
+### Optionen
+
+- `.\install.ps1 -Force` — überschreibt zusätzlich eine vorhandene
+  `~/.config/cship.toml` (standardmäßig wird eine bestehende Config behalten,
+  damit lokale Anpassungen erhalten bleiben).
+
+### Kit aktualisieren
+
+Dateien unter `assets/` bearbeiten, committen, `git push`. Auf einem anderen PC:
+
+```powershell
+git pull
+.\install.ps1 -Force
+```

assets/cship-statusline.ps1

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+# cship statusline wrapper
+# Runs cship, then converts its usage_limits markers (§ 5|7 § pct § reset §)
+# into progress bars styled identically to the context_bar module.
+$ErrorActionPreference = 'SilentlyContinue'
+[Console]::InputEncoding  = New-Object System.Text.UTF8Encoding $false
+[Console]::OutputEncoding = New-Object System.Text.UTF8Encoding $false
+$OutputEncoding           = New-Object System.Text.UTF8Encoding $false
+
+$cship = Join-Path $env:USERPROFILE '.local\bin\cship.exe'
+
+# Read the full Claude Code session JSON from stdin, hand it to cship.
+$inp  = [Console]::In.ReadToEnd()
+$out  = $inp | & $cship
+# Starship's prompt carries a leading blank line (add_newline); drop leading/trailing
+# blank lines so the statusline doesn't waste a row.
+$text = ($out -join "`n").Trim("`r", "`n")
+
+$S   = [char]0x00A7
+$esc = [char]0x1B
+$rx  = [regex]("$S([57])$S([0-9.]+)$S([^$S]*)$S")
+
+$render = [System.Text.RegularExpressions.MatchEvaluator]{
+    param($m)
+    $type  = $m.Groups[1].Value
+    $pct   = [double]$m.Groups[2].Value
+    $reset = $m.Groups[3].Value
+
+    $width   = 10
+    $filled  = [int][math]::Round($pct / 100.0 * $width)
+    if ($filled -lt 0)      { $filled = 0 }
+    if ($filled -gt $width) { $filled = $width }
+    $bar = ([string]([char]0x2588) * $filled) + ([string]([char]0x2591) * ($width - $filled))
+
+    # Same thresholds/colors as context_bar: warn >=40 (yellow), critical >=70 (bold red)
+    if     ($pct -ge 70) { $color = '1;31' }
+    elseif ($pct -ge 40) { $color = '33' }
+    else                 { $color = '38;2;125;207;255' }
+
+    if ($type -eq '5') { $label = '⏳ 5h' } else { $label = '📅 7d' }
+    $pctTxt   = '{0:0}%' -f $pct
+    $resetTxt = if ([string]::IsNullOrWhiteSpace($reset)) { '' } else { " ($reset)" }
+
+    "$esc[${color}m$label $bar $pctTxt$resetTxt$esc[0m"
+}
+
+# Compact the context_window token count marker (§T§<n>§) to K/M form, e.g.
+# 42329 -> 42.3K. cship has no native thousands formatting, so it's done here.
+$rxTok    = [regex]("${S}T${S}([0-9]+)${S}")
+$renderTok = [System.Text.RegularExpressions.MatchEvaluator]{
+    param($m)
+    $n  = [double]$m.Groups[1].Value
+    $ic = [Globalization.CultureInfo]::InvariantCulture
+    if     ($n -ge 1000000) { $v = ($n / 1000000).ToString('0.0', $ic) + 'M' }
+    elseif ($n -ge 1000)    { $v = ($n / 1000).ToString('0.0', $ic) + 'K' }
+    else                    { $v = $n.ToString('0', $ic) }
+    $v -replace '\.0([KM]?)$', '$1'
+}
+$text = $rxTok.Replace($text, $renderTok)
+
+[Console]::Out.Write($rx.Replace($text, $render))

assets/cship.toml

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+# cship — Claude Code statusline (Hero / Recommended + usage progress bars)
+# Reference: https://cship.dev
+[cship]
+lines = [
+  "$starship_prompt",
+  "$cship.model $cship.effort $cship.context_window.total_input_tokens $cship.context_bar $cship.peak_usage $cship.usage_limits",
+]
+
+[cship.model]
+symbol = "🤖 "
+style  = "bold cyan"
+
+[cship.effort]
+symbol      = "⚡ "
+style       = "fg:#7dcfff"
+high_style  = "fg:#e0af68"
+xhigh_style = "bold fg:#e0af68"
+max_style   = "bold fg:#f7768e"
+
+[cship.context_bar]
+symbol             = "🧠 "
+filled_char        = "█"
+empty_char         = "░"
+format             = "[$symbol$value]($style)"
+width              = 10
+style              = "fg:#7dcfff"
+warn_threshold     = 40.0
+warn_style         = "yellow"
+critical_threshold = 70.0
+critical_style     = "bold red"
+
+# $value is emitted inside a §T§…§ marker so the statusline wrapper can
+# compact the raw token count (e.g. 42329 → 42.3K) before display.
+[cship.context_window.total_input_tokens]
+symbol = "🔢 "
+style  = "fg:#a9b1d6"
+format = "[$symbol§T§$value§]($style)"
+
+# usage_limits emits machine markers (§TYPE§pct§reset§); the statusline wrapper
+# turns them into progress bars styled like context_bar. Thresholds >100 so cship
+# adds no ANSI of its own around the markers.
+[cship.usage_limits]
+style              = ""
+separator          = "   "
+five_hour_format   = "§5§{pct}§{reset}§"
+seven_day_format   = "§7§{pct}§{reset}§"
+warn_threshold     = 101
+critical_threshold = 101
+
+[cship.peak_usage]
+symbol = "⏰ "
+style  = "fg:#e0af68"

install.ps1

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+#requires -Version 5.1
+<#
+    install.ps1 — Deploys the Claude Code "cship" statusline onto this machine.
+
+    Idempotent: safe to run repeatedly. Copies the three assets to their target
+    locations, auto-detects the local pwsh path, and merges the statusLine block
+    into an existing ~/.claude/settings.json without touching other settings.
+#>
+[CmdletBinding()]
+param(
+    # Overwrite an existing cship.toml even if one is already present.
+    [switch]$Force
+)
+
+$ErrorActionPreference = 'Stop'
+$assets = Join-Path $PSScriptRoot 'assets'
+
+function Write-Step { param($m) Write-Host "  $m" -ForegroundColor Cyan }
+function Write-Ok   { param($m) Write-Host "  OK  $m" -ForegroundColor Green }
+function Write-Warn { param($m) Write-Host "  !!  $m" -ForegroundColor Yellow }
+
+Write-Host "`nClaude Code statusline installer" -ForegroundColor White
+
+# --- Target locations -------------------------------------------------------
+$localBin = Join-Path $env:USERPROFILE '.local\bin'
+$config   = Join-Path $env:USERPROFILE '.config'
+$claude   = Join-Path $env:USERPROFILE '.claude'
+foreach ($d in @($localBin, $config, $claude)) {
+    New-Item -ItemType Directory -Force -Path $d | Out-Null
+}
+
+# --- 1. cship.exe -----------------------------------------------------------
+Copy-Item (Join-Path $assets 'cship.exe') (Join-Path $localBin 'cship.exe') -Force
+Write-Ok "cship.exe -> $localBin"
+
+# --- 2. cship.toml (do not clobber a customised config unless -Force) --------
+$tomlTarget = Join-Path $config 'cship.toml'
+if ((Test-Path $tomlTarget) -and -not $Force) {
+    Write-Warn "cship.toml already exists, kept as-is (use -Force to overwrite)"
+} else {
+    Copy-Item (Join-Path $assets 'cship.toml') $tomlTarget -Force
+    Write-Ok "cship.toml -> $config"
+}
+
+# --- 3. Wrapper script ------------------------------------------------------
+$wrapperTarget = Join-Path $claude 'cship-statusline.ps1'
+Copy-Item (Join-Path $assets 'cship-statusline.ps1') $wrapperTarget -Force
+Write-Ok "cship-statusline.ps1 -> $claude"
+
+# --- 4. Locate pwsh ---------------------------------------------------------
+$pwsh = (Get-Command pwsh -ErrorAction SilentlyContinue).Source
+if (-not $pwsh) {
+    $fallback = 'C:\Program Files\PowerShell\7\pwsh.exe'
+    if (Test-Path $fallback) {
+        $pwsh = $fallback
+    } else {
+        Write-Warn "PowerShell 7 (pwsh) not found. Install it, then re-run this script."
+        Write-Warn "  winget install --id Microsoft.PowerShell -e"
+        $pwsh = $fallback   # write the conventional path so it works once pwsh is installed
+    }
+}
+$pwshFwd    = $pwsh.Replace('\', '/')
+$wrapperFwd = $wrapperTarget.Replace('\', '/')
+$command    = '"{0}" -NoProfile -ExecutionPolicy Bypass -File "{1}"' -f $pwshFwd, $wrapperFwd
+
+# --- 5. Merge statusLine into settings.json ---------------------------------
+$settingsPath = Join-Path $claude 'settings.json'
+if (Test-Path $settingsPath) {
+    Copy-Item $settingsPath "$settingsPath.bak" -Force
+    $settings = Get-Content $settingsPath -Raw | ConvertFrom-Json
+} else {
+    $settings = [PSCustomObject]@{}
+}
+
+$statusLine = [PSCustomObject]@{ type = 'command'; command = $command }
+if ($settings.PSObject.Properties.Name -contains 'statusLine') {
+    $settings.statusLine = $statusLine
+} else {
+    $settings | Add-Member -MemberType NoteProperty -Name 'statusLine' -Value $statusLine
+}
+
+$settings | ConvertTo-Json -Depth 20 | Set-Content $settingsPath -Encoding UTF8
+Write-Ok "settings.json statusLine wired to detected pwsh"
+
+# --- Post-install notes -----------------------------------------------------
+Write-Host "`nDone." -ForegroundColor Green
+Write-Host "Notes:" -ForegroundColor White
+Write-Warn "Use a terminal font with emoji / Nerd-Font glyphs so the icons render (Cascadia Code, JetBrainsMono Nerd Font, ...)."
+Write-Host "  Restart Claude Code (or start a new session) to see the statusline.`n"