feat(deploy): add sync and push scripts for CI/CD

deploy/scripts/push.ps1

@@ -0,0 +1,56 @@
+<#
+.SYNOPSIS
+  Git commit + push to Gitea (no sensitive data; credentials come from git config or env).
+
+.DESCRIPTION
+  Stages all changes, commits with a timestamp message, and force-pushes to origin/main.
+  Run from the repo root or any subdirectory.
+
+  Remote URL is whatever `git remote get-url origin` returns — configure it once:
+    git remote set-url origin https://<user>@<host>/arash/audio-voice-converter.git
+
+.PARAMETER Message
+  Optional commit message. Defaults to "chore: sync extension files <timestamp>".
+
+.PARAMETER DryRun
+  Show what would be committed/pushed without actually doing it.
+
+.EXAMPLE
+  .\deploy\scripts\push.ps1
+  .\deploy\scripts\push.ps1 -Message "feat: update popup UI"
+  .\deploy\scripts\push.ps1 -DryRun
+#>
+[CmdletBinding()]
+param(
+    [string]$Message,
+    [switch]$DryRun
+)
+
+$ErrorActionPreference = "Stop"
+
+# Navigate to repo root (2 levels up from deploy/scripts/)
+$repoRoot = Split-Path (Split-Path $PSScriptRoot)
+Set-Location $repoRoot
+
+$status = git status --porcelain
+if (-not $status) {
+    Write-Host "Nothing to commit."
+    exit 0
+}
+
+$msg = if ($Message) { $Message } else { "chore: sync extension files $(Get-Date -Format 'yyyy-MM-dd HH:mm')" }
+
+Write-Host "Changes to commit:"
+git status --short
+
+if ($DryRun) {
+    Write-Host "[DryRun] Would commit: $msg"
+    Write-Host "[DryRun] Would push: origin main (force)"
+    exit 0
+}
+
+git add .
+git commit -m $msg
+git push --force origin main
+
+Write-Host "Push complete."