fix(shims): skip PowerShell common params in CLI forwarders

The blind -X -> --x shims forwarded PowerShell common parameters
(-ErrorAction, -Verbose, ...) to the Python CLI, e.g.
Measure-CIBenchmark.ps1 -> Remove-BuildVM.ps1 -ErrorAction
SilentlyContinue produced `ci_orchestrator vm remove --error-action`
-> "No such option" -> destroy failed (orphan VM left). Skip
common switches and consume value-taking ones. Applied to all 7
blind-loop shims; param-style shims (New-BuildVM, Invoke-RemoteBuild,
Get-BuildArtifacts) are not affected. PSSA clean.

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

scripts/Cleanup-OrphanedBuildVMs.ps1

@@ -4,10 +4,24 @@ $ErrorActionPreference = 'Stop'
 
 # Shim: delegates to the Python ci_orchestrator CLI.
 # Original PS implementation moved to git history; see plans/A2-closeout.md.
+# PowerShell common params (-ErrorAction etc.) must not be forwarded
+# to the Python CLI. Value-taking ones also consume the next token.
+$commonWithValue = @{
+    erroraction = $true; warningaction = $true; informationaction = $true
+    progressaction = $true; errorvariable = $true; warningvariable = $true
+    informationvariable = $true; outvariable = $true; outbuffer = $true
+    pipelinevariable = $true
+}
+$commonSwitch = @{ verbose = $true; debug = $true; whatif = $true; confirm = $true }
+
 $pyArgs = @()
-foreach ($a in $args) {
+for ($i = 0; $i -lt $args.Count; $i++) {
+    $a = $args[$i]
     if ($a -is [string] -and $a.Length -gt 1 -and $a.StartsWith('-') -and -not $a.StartsWith('--')) {
         $name  = $a.Substring(1)
+        $lname = $name.ToLower()
+        if ($commonSwitch.ContainsKey($lname)) { continue }
+        if ($commonWithValue.ContainsKey($lname)) { $i++; continue }
         $kebab = [Regex]::Replace($name, '(?<=[a-z0-9])([A-Z])', '-$1')
         $kebab = [Regex]::Replace($kebab, '([A-Z]+)([A-Z][a-z])', '$1-$2')
         $pyArgs += '--' + $kebab.ToLower()

scripts/Get-CIJobSummary.ps1

@@ -4,10 +4,24 @@ $ErrorActionPreference = 'Stop'
 
 # Shim: delegates to the Python ci_orchestrator CLI.
 # Original PS implementation moved to git history; see plans/A2-closeout.md.
+# PowerShell common params (-ErrorAction etc.) must not be forwarded
+# to the Python CLI. Value-taking ones also consume the next token.
+$commonWithValue = @{
+    erroraction = $true; warningaction = $true; informationaction = $true
+    progressaction = $true; errorvariable = $true; warningvariable = $true
+    informationvariable = $true; outvariable = $true; outbuffer = $true
+    pipelinevariable = $true
+}
+$commonSwitch = @{ verbose = $true; debug = $true; whatif = $true; confirm = $true }
+
 $pyArgs = @()
-foreach ($a in $args) {
+for ($i = 0; $i -lt $args.Count; $i++) {
+    $a = $args[$i]
     if ($a -is [string] -and $a.Length -gt 1 -and $a.StartsWith('-') -and -not $a.StartsWith('--')) {
         $name  = $a.Substring(1)
+        $lname = $name.ToLower()
+        if ($commonSwitch.ContainsKey($lname)) { continue }
+        if ($commonWithValue.ContainsKey($lname)) { $i++; continue }
         $kebab = [Regex]::Replace($name, '(?<=[a-z0-9])([A-Z])', '-$1')
         $kebab = [Regex]::Replace($kebab, '([A-Z]+)([A-Z][a-z])', '$1-$2')
         $pyArgs += '--' + $kebab.ToLower()

scripts/Invoke-CIJob.ps1

@@ -4,10 +4,24 @@ $ErrorActionPreference = 'Stop'
 
 # Shim: delegates to the Python ci_orchestrator CLI.
 # Original PS implementation moved to git history; see plans/A4-closeout.md.
+# PowerShell common params (-ErrorAction etc.) must not be forwarded
+# to the Python CLI. Value-taking ones also consume the next token.
+$commonWithValue = @{
+    erroraction = $true; warningaction = $true; informationaction = $true
+    progressaction = $true; errorvariable = $true; warningvariable = $true
+    informationvariable = $true; outvariable = $true; outbuffer = $true
+    pipelinevariable = $true
+}
+$commonSwitch = @{ verbose = $true; debug = $true; whatif = $true; confirm = $true }
+
 $pyArgs = @()
-foreach ($a in $args) {
+for ($i = 0; $i -lt $args.Count; $i++) {
+    $a = $args[$i]
     if ($a -is [string] -and $a.Length -gt 1 -and $a.StartsWith('-') -and -not $a.StartsWith('--')) {
         $name  = $a.Substring(1)
+        $lname = $name.ToLower()
+        if ($commonSwitch.ContainsKey($lname)) { continue }
+        if ($commonWithValue.ContainsKey($lname)) { $i++; continue }
         $kebab = [Regex]::Replace($name, '(?<=[a-z0-9])([A-Z])', '-$1')
         $kebab = [Regex]::Replace($kebab, '([A-Z]+)([A-Z][a-z])', '$1-$2')
         $pyArgs += '--' + $kebab.ToLower()

scripts/Remove-BuildVM.ps1

@@ -4,10 +4,27 @@ $ErrorActionPreference = 'Stop'
 
 # Shim: delegates to the Python ci_orchestrator CLI.
 # Original PS implementation moved to git history; see plans/A2-closeout.md.
+#
+# Callers (e.g. Measure-CIBenchmark.ps1) may pass PowerShell common
+# parameters like -ErrorAction SilentlyContinue. Those must NOT be
+# forwarded as --error-action etc. (the Python CLI rejects them).
+# Value-taking common params consume the following token too.
+$commonWithValue = @{
+    erroraction = $true; warningaction = $true; informationaction = $true
+    progressaction = $true; errorvariable = $true; warningvariable = $true
+    informationvariable = $true; outvariable = $true; outbuffer = $true
+    pipelinevariable = $true
+}
+$commonSwitch = @{ verbose = $true; debug = $true; whatif = $true; confirm = $true }
+
 $pyArgs = @()
-foreach ($a in $args) {
+for ($i = 0; $i -lt $args.Count; $i++) {
+    $a = $args[$i]
     if ($a -is [string] -and $a.Length -gt 1 -and $a.StartsWith('-') -and -not $a.StartsWith('--')) {
         $name  = $a.Substring(1)
+        $lname = $name.ToLower()
+        if ($commonSwitch.ContainsKey($lname)) { continue }
+        if ($commonWithValue.ContainsKey($lname)) { $i++; continue }
         $kebab = [Regex]::Replace($name, '(?<=[a-z0-9])([A-Z])', '-$1')
         $kebab = [Regex]::Replace($kebab, '([A-Z]+)([A-Z][a-z])', '$1-$2')
         $pyArgs += '--' + $kebab.ToLower()

scripts/Wait-VMReady.ps1

@@ -4,10 +4,24 @@ $ErrorActionPreference = 'Stop'
 
 # Shim: delegates to the Python ci_orchestrator CLI.
 # Original PS implementation moved to git history; see plans/A2-closeout.md.
+# PowerShell common params (-ErrorAction etc.) must not be forwarded
+# to the Python CLI. Value-taking ones also consume the next token.
+$commonWithValue = @{
+    erroraction = $true; warningaction = $true; informationaction = $true
+    progressaction = $true; errorvariable = $true; warningvariable = $true
+    informationvariable = $true; outvariable = $true; outbuffer = $true
+    pipelinevariable = $true
+}
+$commonSwitch = @{ verbose = $true; debug = $true; whatif = $true; confirm = $true }
+
 $pyArgs = @()
-foreach ($a in $args) {
+for ($i = 0; $i -lt $args.Count; $i++) {
+    $a = $args[$i]
     if ($a -is [string] -and $a.Length -gt 1 -and $a.StartsWith('-') -and -not $a.StartsWith('--')) {
         $name  = $a.Substring(1)
+        $lname = $name.ToLower()
+        if ($commonSwitch.ContainsKey($lname)) { continue }
+        if ($commonWithValue.ContainsKey($lname)) { $i++; continue }
         $kebab = [Regex]::Replace($name, '(?<=[a-z0-9])([A-Z])', '-$1')
         $kebab = [Regex]::Replace($kebab, '([A-Z]+)([A-Z][a-z])', '$1-$2')
         $pyArgs += '--' + $kebab.ToLower()

scripts/Watch-DiskSpace.ps1

@@ -4,10 +4,24 @@ $ErrorActionPreference = 'Stop'
 
 # Shim: delegates to the Python ci_orchestrator CLI.
 # Original PS implementation moved to git history; see plans/A2-closeout.md.
+# PowerShell common params (-ErrorAction etc.) must not be forwarded
+# to the Python CLI. Value-taking ones also consume the next token.
+$commonWithValue = @{
+    erroraction = $true; warningaction = $true; informationaction = $true
+    progressaction = $true; errorvariable = $true; warningvariable = $true
+    informationvariable = $true; outvariable = $true; outbuffer = $true
+    pipelinevariable = $true
+}
+$commonSwitch = @{ verbose = $true; debug = $true; whatif = $true; confirm = $true }
+
 $pyArgs = @()
-foreach ($a in $args) {
+for ($i = 0; $i -lt $args.Count; $i++) {
+    $a = $args[$i]
     if ($a -is [string] -and $a.Length -gt 1 -and $a.StartsWith('-') -and -not $a.StartsWith('--')) {
         $name  = $a.Substring(1)
+        $lname = $name.ToLower()
+        if ($commonSwitch.ContainsKey($lname)) { continue }
+        if ($commonWithValue.ContainsKey($lname)) { $i++; continue }
         $kebab = [Regex]::Replace($name, '(?<=[a-z0-9])([A-Z])', '-$1')
         $kebab = [Regex]::Replace($kebab, '([A-Z]+)([A-Z][a-z])', '$1-$2')
         $pyArgs += '--' + $kebab.ToLower()

scripts/Watch-RunnerHealth.ps1

@@ -4,10 +4,24 @@ $ErrorActionPreference = 'Stop'
 
 # Shim: delegates to the Python ci_orchestrator CLI.
 # Original PS implementation moved to git history; see plans/A2-closeout.md.
+# PowerShell common params (-ErrorAction etc.) must not be forwarded
+# to the Python CLI. Value-taking ones also consume the next token.
+$commonWithValue = @{
+    erroraction = $true; warningaction = $true; informationaction = $true
+    progressaction = $true; errorvariable = $true; warningvariable = $true
+    informationvariable = $true; outvariable = $true; outbuffer = $true
+    pipelinevariable = $true
+}
+$commonSwitch = @{ verbose = $true; debug = $true; whatif = $true; confirm = $true }
+
 $pyArgs = @()
-foreach ($a in $args) {
+for ($i = 0; $i -lt $args.Count; $i++) {
+    $a = $args[$i]
     if ($a -is [string] -and $a.Length -gt 1 -and $a.StartsWith('-') -and -not $a.StartsWith('--')) {
         $name  = $a.Substring(1)
+        $lname = $name.ToLower()
+        if ($commonSwitch.ContainsKey($lname)) { continue }
+        if ($commonWithValue.ContainsKey($lname)) { $i++; continue }
         $kebab = [Regex]::Replace($name, '(?<=[a-z0-9])([A-Z])', '-$1')
         $kebab = [Regex]::Replace($kebab, '([A-Z]+)([A-Z][a-z])', '$1-$2')
         $pyArgs += '--' + $kebab.ToLower()