chore: push all design docs, V2 plan specs, and current working state

Includes AirPlan design documents, AircOding-alpha1-plan, AirPlanV2,
AirPlan-ParaV2, AirPlan-Para V1 reference docs, and all working code
changes across packages.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

AirPlan/docs/spec/AirPlan-ParaV2/install_aircontext_local.ps1

@@ -0,0 +1,52 @@
+$ErrorActionPreference = "Stop"
+
+$bundleRoot = Split-Path -Parent $MyInvocation.MyCommand.Path
+$homeRoot = [Environment]::GetFolderPath("UserProfile")
+$timestamp = Get-Date -Format "yyyyMMdd-HHmmss"
+$backupRoot = Join-Path $homeRoot "airplan-backups\$timestamp"
+$sourceRoot = Join-Path $bundleRoot "AirContextServer"
+$targetRoot = Join-Path $homeRoot "AirContextServer"
+$snippetPath = Join-Path $bundleRoot "aircontext-settings-snippet.json"
+
+function Backup-ItemIfExists {
+    param(
+        [Parameter(Mandatory = $true)][string]$SourcePath,
+        [Parameter(Mandatory = $true)][string]$BackupRelativePath
+    )
+
+    if (-not (Test-Path -LiteralPath $SourcePath)) {
+        return
+    }
+
+    $backupPath = Join-Path $backupRoot $BackupRelativePath
+    $backupParent = Split-Path -Parent $backupPath
+    if ($backupParent) {
+        New-Item -ItemType Directory -Path $backupParent -Force | Out-Null
+    }
+    Copy-Item -LiteralPath $SourcePath -Destination $backupPath -Recurse -Force
+}
+
+function Replace-Directory {
+    param(
+        [Parameter(Mandatory = $true)][string]$SourcePath,
+        [Parameter(Mandatory = $true)][string]$TargetPath
+    )
+
+    $targetParent = Split-Path -Parent $TargetPath
+    if ($targetParent) {
+        New-Item -ItemType Directory -Path $targetParent -Force | Out-Null
+    }
+    if (Test-Path -LiteralPath $TargetPath) {
+        Remove-Item -LiteralPath $TargetPath -Recurse -Force
+    }
+    Copy-Item -LiteralPath $SourcePath -Destination $TargetPath -Recurse -Force
+}
+
+New-Item -ItemType Directory -Path $backupRoot -Force | Out-Null
+Backup-ItemIfExists -SourcePath $targetRoot -BackupRelativePath "AirContextServer"
+Replace-Directory -SourcePath $sourceRoot -TargetPath $targetRoot
+
+Write-Output "aircontext_stage=completed"
+Write-Output ("aircontext_root=" + $targetRoot)
+Write-Output ("settings_snippet=" + $snippetPath)
+Write-Output "next_step=merge the snippet into %USERPROFILE%\.claude\settings.json or settings.local.json and enable aircontext@aircontext-mkt"