feat: Add Continuous Delivery system with auto-commit and file watcher

Automatically commit and push changes to GitHub with zero manual intervention.

Features:
- File watcher mode: Auto-detects changes in real-time
- Timer mode: Commits at regular intervals (default 5 minutes)
- Smart exclusions: Ignores temp files, sessions, cache, db files
- Retry logic: Auto-retries failed pushes
- Change summaries: Detailed commit messages with file lists

Components:
- auto-deploy.ps1: Core CD engine with file watcher
- start-cd.ps1: Easy-to-use wrapper with commands
- .cd-config.json: Configuration file
- CONTINUOUS_DELIVERY_GUIDE.md: Complete documentation

Usage:
  .\start-cd.ps1 watch    # Start file watcher (recommended)
  .\start-cd.ps1 start    # Timer mode (every 5 min)
  .\start-cd.ps1 once     # One-time commit

Also removed db_data/ from git tracking (now in .gitignore).
Database runtime files should never be committed.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

start-cd.ps1

@@ -0,0 +1,154 @@
+# Quick Start Script for EasyStream Continuous Delivery
+# This script provides easy access to CD functionality
+
+param(
+    [Parameter(Position=0)]
+    [ValidateSet("start", "watch", "status", "stop", "once", "help")]
+    [string]$Action = "help",
+
+    [int]$Interval = 300
+)
+
+$RepoPath = $PSScriptRoot
+$AutoDeployScript = Join-Path $RepoPath "auto-deploy.ps1"
+
+function Show-Help {
+    Write-Host ""
+    Write-Host "EasyStream Continuous Delivery Manager" -ForegroundColor Cyan
+    Write-Host "======================================" -ForegroundColor Cyan
+    Write-Host ""
+    Write-Host "USAGE:" -ForegroundColor Yellow
+    Write-Host "  .\start-cd.ps1 <action> [options]"
+    Write-Host ""
+    Write-Host "ACTIONS:" -ForegroundColor Yellow
+    Write-Host "  start              Start CD with timer (default: 5 min intervals)"
+    Write-Host "  watch              Start CD with file watcher (auto-detect changes)"
+    Write-Host "  once               Run one-time commit and push"
+    Write-Host "  status             Check current git status"
+    Write-Host "  stop               Stop all running CD processes"
+    Write-Host "  help               Show this help message"
+    Write-Host ""
+    Write-Host "OPTIONS:" -ForegroundColor Yellow
+    Write-Host "  -Interval <sec>    Set interval in seconds (default: 300)"
+    Write-Host ""
+    Write-Host "EXAMPLES:" -ForegroundColor Yellow
+    Write-Host "  .\start-cd.ps1 watch              # Start file watcher mode"
+    Write-Host "  .\start-cd.ps1 start -Interval 60 # Check every 1 minute"
+    Write-Host "  .\start-cd.ps1 once               # Commit and push now"
+    Write-Host ""
+    Write-Host "RECOMMENDED:" -ForegroundColor Green
+    Write-Host "  Use 'watch' mode for automatic detection of file changes"
+    Write-Host ""
+}
+
+function Start-CDService {
+    Write-Host "Starting Continuous Delivery (Timer Mode)..." -ForegroundColor Green
+    Write-Host "Interval: $Interval seconds" -ForegroundColor Cyan
+    Write-Host "Press Ctrl+C to stop" -ForegroundColor Yellow
+    Write-Host ""
+    & $AutoDeployScript -IntervalSeconds $Interval -Verbose
+}
+
+function Start-WatchService {
+    Write-Host "Starting Continuous Delivery (File Watcher Mode)..." -ForegroundColor Green
+    Write-Host "Changes will auto-commit 30 seconds after last modification" -ForegroundColor Cyan
+    Write-Host "Press Ctrl+C to stop" -ForegroundColor Yellow
+    Write-Host ""
+    & $AutoDeployScript -WatchMode -Verbose
+}
+
+function Invoke-OnceCommit {
+    Write-Host "Running one-time commit and push..." -ForegroundColor Green
+    Write-Host ""
+
+    Push-Location $RepoPath
+    try {
+        # Check for changes
+        $status = git status --porcelain
+        if (-not $status) {
+            Write-Host "No changes to commit" -ForegroundColor Yellow
+            return
+        }
+
+        Write-Host "Changes detected:" -ForegroundColor Cyan
+        git status --short
+
+        # Confirm
+        $response = Read-Host "`nProceed with commit and push? (y/n)"
+        if ($response -ne 'y') {
+            Write-Host "Cancelled" -ForegroundColor Yellow
+            return
+        }
+
+        # Stage all
+        Write-Host "`nStaging all changes..." -ForegroundColor Cyan
+        git add -A
+
+        # Commit
+        $timestamp = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
+        $message = "manual: Update at $timestamp`n`n🤖 Generated with Claude Code Continuous Delivery`n`nCo-Authored-By: Claude <noreply@anthropic.com>"
+
+        Write-Host "Creating commit..." -ForegroundColor Cyan
+        git commit -m $message
+
+        if ($LASTEXITCODE -eq 0) {
+            Write-Host "✓ Commit successful" -ForegroundColor Green
+
+            # Push
+            Write-Host "Pushing to GitHub..." -ForegroundColor Cyan
+            git push origin dev
+
+            if ($LASTEXITCODE -eq 0) {
+                Write-Host "✓ Push successful" -ForegroundColor Green
+            } else {
+                Write-Host "✗ Push failed" -ForegroundColor Red
+            }
+        } else {
+            Write-Host "✗ Commit failed" -ForegroundColor Red
+        }
+    } finally {
+        Pop-Location
+    }
+}
+
+function Show-Status {
+    Push-Location $RepoPath
+    try {
+        Write-Host "Git Status:" -ForegroundColor Cyan
+        Write-Host ""
+        git status
+
+        Write-Host "`nLast 5 commits:" -ForegroundColor Cyan
+        git log --oneline -5
+
+        Write-Host "`nRemote status:" -ForegroundColor Cyan
+        git remote -v
+    } finally {
+        Pop-Location
+    }
+}
+
+function Stop-CDService {
+    Write-Host "Stopping Continuous Delivery services..." -ForegroundColor Yellow
+
+    $processes = Get-Process powershell -ErrorAction SilentlyContinue |
+        Where-Object { $_.CommandLine -like "*auto-deploy.ps1*" }
+
+    if ($processes) {
+        $processes | Stop-Process -Force
+        Write-Host "✓ Stopped $($processes.Count) CD process(es)" -ForegroundColor Green
+    } else {
+        Write-Host "No running CD processes found" -ForegroundColor Yellow
+    }
+}
+
+# Execute action
+switch ($Action) {
+    "start" { Start-CDService }
+    "watch" { Start-WatchService }
+    "once" { Invoke-OnceCommit }
+    "status" { Show-Status }
+    "stop" { Stop-CDService }
+    "help" { Show-Help }
+    default { Show-Help }
+}