feat(validate): auto-resolve directory paths, fix SKILL.md placeholders

Scripts now accept directory paths (e.g. Forms/ИмяФормы) and auto-resolve
to the target XML file. Silent fallbacks handle missing Ext/ level and
descriptor-to-file resolution. SKILL.md: concrete placeholders, unified
quotes, auto-resolve notes, role-validate MaxErrors in params.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.claude/skills/form-validate/scripts/form-validate.ps1

@@ -12,6 +12,27 @@ param(
 $ErrorActionPreference = "Stop"
 [Console]::OutputEncoding = [System.Text.Encoding]::UTF8
 
+# --- Resolve path ---
+# A: Directory → Ext/Form.xml
+if (Test-Path $FormPath -PathType Container) {
+	$FormPath = Join-Path (Join-Path $FormPath "Ext") "Form.xml"
+}
+# B1: Missing Ext/ (e.g. Forms/Форма/Form.xml → Forms/Форма/Ext/Form.xml)
+if (-not (Test-Path $FormPath)) {
+	$fn = [System.IO.Path]::GetFileName($FormPath)
+	if ($fn -eq "Form.xml") {
+		$c = Join-Path (Join-Path (Split-Path $FormPath) "Ext") $fn
+		if (Test-Path $c) { $FormPath = $c }
+	}
+}
+# B2: Descriptor (Forms/Форма.xml → Forms/Форма/Ext/Form.xml)
+if (-not (Test-Path $FormPath) -and $FormPath.EndsWith(".xml")) {
+	$stem = [System.IO.Path]::GetFileNameWithoutExtension($FormPath)
+	$dir = Split-Path $FormPath
+	$c = Join-Path (Join-Path (Join-Path $dir $stem) "Ext") "Form.xml"
+	if (Test-Path $c) { $FormPath = $c }
+}
+
 # --- Load XML ---
 
 if (-not (Test-Path $FormPath)) {