fix(windows): create ccs-uninstall command matching documented behavior

Windows install now creates ccs-uninstall.ps1 instead of uninstall.ps1,
matching documented command and Linux/macOS naming convention.

Changes:
- Copy/download uninstall.ps1 as ccs-uninstall.ps1 directly
- Use $PSCommandPath for dynamic self-removal (works with any filename)
- Clean up old uninstall.ps1 during upgrades
- Maintain cross-platform consistency

Fixes issue where Windows users couldn't run documented `ccs-uninstall`
command after quick install via irm ccs.kaitran.ca/install.ps1 | iex

install.ps1

@@ -162,17 +162,26 @@ if ($InstallMethod -eq "standalone") {
     Write-Host "|  [OK] Installed ccs.ps1"
 }
 
-# Install uninstall script
+# Install uninstall script as ccs-uninstall.ps1
 if ($ScriptDir -and (Test-Path "$ScriptDir\uninstall.ps1")) {
-    # Only copy if source and destination are different
+    # Copy uninstall.ps1 as ccs-uninstall.ps1 (similar to Linux symlink approach)
     if ($ScriptDir -ne $CcsDir) {
-        Copy-Item "$ScriptDir\uninstall.ps1" "$CcsDir\uninstall.ps1" -Force
+        Copy-Item "$ScriptDir\uninstall.ps1" "$CcsDir\ccs-uninstall.ps1" -Force
+    }
+    # Clean up old uninstall.ps1 from previous installations
+    if (Test-Path "$CcsDir\uninstall.ps1") {
+        Remove-Item "$CcsDir\uninstall.ps1" -Force -ErrorAction SilentlyContinue
     }
     Write-Host "|  [OK] Installed uninstaller"
 } elseif ($InstallMethod -eq "standalone") {
     try {
         $BaseUrl = "https://raw.githubusercontent.com/kaitranntt/ccs/main"
-        Invoke-WebRequest -Uri "$BaseUrl/uninstall.ps1" -OutFile "$CcsDir\uninstall.ps1" -UseBasicParsing
+        # Download uninstall.ps1 as ccs-uninstall.ps1
+        Invoke-WebRequest -Uri "$BaseUrl/uninstall.ps1" -OutFile "$CcsDir\ccs-uninstall.ps1" -UseBasicParsing
+        # Clean up old uninstall.ps1 from previous installations
+        if (Test-Path "$CcsDir\uninstall.ps1") {
+            Remove-Item "$CcsDir\uninstall.ps1" -Force -ErrorAction SilentlyContinue
+        }
         Write-Host "|  [OK] Installed uninstaller"
     } catch {
         Write-Host "|  [!]  Could not download uninstaller (optional)"

uninstall.ps1

@@ -16,8 +16,8 @@ if (Test-Path "$CcsDir\ccs.ps1") {
     Write-Host "[i]  No ccs.ps1 found at $CcsDir"
 }
 
-# Remove uninstall script itself (will be last)
-$UninstallScript = "$CcsDir\uninstall.ps1"
+# Get this script's path for self-removal (works whether named uninstall.ps1 or ccs-uninstall.ps1)
+$UninstallScript = $PSCommandPath
 
 # Remove from PATH
 $UserPath = [Environment]::GetEnvironmentVariable("Path", [System.EnvironmentVariableTarget]::User)
@@ -40,7 +40,7 @@ if (Test-Path $CcsDir) {
         Remove-Item $CcsDir -Recurse -Force
         Write-Host "[OK] Removed: $CcsDir"
     } else {
-        # If keeping directory, remove uninstall script
+        # If keeping directory, remove this uninstall script
         if (Test-Path $UninstallScript) {
             Remove-Item $UninstallScript -Force
             Write-Host "[OK] Removed: $UninstallScript"