Sync: Complete project state with all MEGA SPRINT V1-V3 features and Codex stubs

ralph/scripts/Invoke-CodexNextTask.ps1

@@ -0,0 +1,44 @@
+param(
+    [Parameter(Mandatory = $true)][string]$TaskDirectory,
+    [Parameter(Mandatory = $true)][string]$RunDirectory,
+    [Parameter(Mandatory = $true)][string]$OutputFile,
+    [Parameter(Mandatory = $true)][string]$RunStatus,
+    [string]$WorkingDirectory = "",
+    [string[]]$ExtraSections = @()
+)
+
+. (Join-Path $PSScriptRoot "Common.ps1")
+
+if ([string]::IsNullOrWhiteSpace($WorkingDirectory)) {
+    $WorkingDirectory = Get-RepoRoot
+}
+
+$taskPack = Read-TaskPack -TaskDirectory $TaskDirectory
+$ralphRoot = Get-RalphRoot
+$promptPath = Join-Path $RunDirectory "prompts\codex_next_task.md"
+
+$sections = @(
+    "## PREVIOUS RUN DIRECTORY`n$RunDirectory",
+    "## PREVIOUS RUN STATUS`n$RunStatus"
+)
+foreach ($section in $ExtraSections) {
+    $sections += $section
+}
+
+New-PromptDocument `
+    -TemplatePath (Join-Path $ralphRoot "templates\CODEX_NEXT_TASK_PROMPT.md") `
+    -TaskPack $taskPack `
+    -OutputPath $promptPath `
+    -ExtraSections $sections
+
+& (Join-Path $PSScriptRoot "Invoke-CodexMaster.ps1") `
+    -PromptFile $promptPath `
+    -OutputFile $OutputFile `
+    -WorkingDirectory $WorkingDirectory `
+    -SkipVerdictParse | Out-Null
+
+if (-not (Test-Path $OutputFile)) {
+    throw "Codex next-task generation did not produce output: $OutputFile"
+}
+
+Get-Content -Raw -Path $OutputFile