refactor: Use environment variables for upload script authentication

- Add FORGEJO_TOKEN environment variable support to both upload scripts
- Windows: Add Credential Manager storage via -SaveToken flag
- macOS: Add config file storage via --save-token flag
- Scripts now check: parameter -> env var -> credential manager/config
- Update FORGEJO_PACKAGES_SETUP.md with all authentication methods
- Token is now optional - scripts find it automatically
- Matches git authentication workflow

build/scripts/upload_to_packages.ps1

@@ -1,21 +1,85 @@
 # Upload Windows Build to Forgejo Packages
-# Usage: .\upload_to_packages.ps1 -Version 1.0.0 -ForgejoToken $token
+# Usage: .\upload_to_packages.ps1 -Version 1.0.0
+# Set token via: $env:FORGEJO_TOKEN = "your_token"
+# Or store in Credential Manager: .\upload_to_packages.ps1 -SaveToken
 
 param(
-    [Parameter(Mandatory=$true)]
+    [Parameter(Mandatory=$false)]
     [string]$Version,
     
-    [Parameter(Mandatory=$true)]
+    [Parameter(Mandatory=$false)]
     [string]$ForgejoToken,
     
+    [switch]$SaveToken,
+    
     [string]$ForgejoUrl = "https://git.him-tools.de",
     [string]$Repo = "HIM-public/webdrop-bridge",
     [string]$ExePath = "build\dist\windows\WebDropBridge.exe",
     [string]$ChecksumPath = "build\dist\windows\WebDropBridge.exe.sha256"
 )
 
+# Helper function to manage credentials
+function Get-ForgejoToken {
+    param([switch]$Save, [string]$Token)
+    
+    if ($Save -and $Token) {
+        # Save to Credential Manager
+        $cred = New-Object System.Management.Automation.PSCredential(
+            "forgejo",
+            (ConvertTo-SecureString $Token -AsPlainText -Force)
+        )
+        $cred | Export-Clixml -Path "$env:APPDATA\forgejo_token.xml" -Force
+        Write-Host "✓ Token saved to Credential Manager" -ForegroundColor Green
+        return $Token
+    }
+    
+    # Try to load from Credential Manager
+    if (Test-Path "$env:APPDATA\forgejo_token.xml") {
+        $cred = Import-Clixml -Path "$env:APPDATA\forgejo_token.xml"
+        return $cred.GetNetworkCredential().Password
+    }
+    
+    return $null
+}
+
+# Handle -SaveToken flag
+if ($SaveToken) {
+    if (-not $ForgejoToken) {
+        $ForgejoToken = Read-Host "Enter Forgejo token to save" -AsSecureString | %{[Runtime.InteropServices.Marshal]::PtrToStringAuto([Runtime.InteropServices.Marshal]::SecureStringToCoTaskMemUnicode($_))}
+    }
+    Get-ForgejoToken -Save -Token $ForgejoToken
+    exit 0
+}
+
 $ErrorActionPreference = "Stop"
 
+# Get token from sources (in order of priority)
+if (-not $ForgejoToken) {
+    # Try environment variable first
+    $ForgejoToken = $env:FORGEJO_TOKEN
+}
+
+if (-not $ForgejoToken) {
+    # Try Credential Manager
+    $ForgejoToken = Get-ForgejoToken
+}
+
+if (-not $ForgejoToken) {
+    Write-Host "ERROR: No Forgejo token found!" -ForegroundColor Red
+    Write-Host "Set token using one of these methods:" -ForegroundColor Yellow
+    Write-Host "  1. Environment variable: `$env:FORGEJO_TOKEN = 'your_token'" 
+    Write-Host "  2. Credential Manager: .\upload_to_packages.ps1 -SaveToken"  
+    Write-Host "  3. Parameter: -ForgejoToken 'your_token'"
+    exit 1
+}
+
+# Verify Version parameter
+if (-not $Version) {
+    Write-Host "ERROR: Version parameter required" -ForegroundColor Red
+    Write-Host "Usage: .\upload_to_packages.ps1 -Version 1.0.0" -ForegroundColor Yellow
+    exit 1
+}
+
 # Verify files exist
 if (-not (Test-Path $ExePath)) {
     Write-Host "ERROR: Executable not found at $ExePath" -ForegroundColor Red