ci: add field-journal leak scan via scan-leaks.ps1 (P1-2)

- New skills/scripts/scan-leaks.ps1: PSParser-free regex scanner for
  public IPv4 (RFC1918/link-local/CGNAT/doc ranges excluded), email
  (sample domains allowed), CN mobile, JWT, AWS AKIA, OpenAI sk-/sk-proj-,
  GitHub/npm/Slack tokens, Google API keys, Stripe live keys
- Exit 1 on findings (CI gate); -ReportOnly for local preview
- Baseline clean: 41 field-journal files, 0 findings
- New leak-scan CI job runs the scanner on skills/field-journal
- anonymization.md now references the shipped script

.github/workflows/ci.yml

@@ -149,6 +149,15 @@ jobs:
           }
           if ($failed -gt 0) { exit 1 }
 
+  leak-scan:
+    name: field-journal leak scan
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - name: Scan field-journal for un-anonymized secrets
+        shell: pwsh
+        run: ./skills/scripts/scan-leaks.ps1 -Path skills/field-journal
+
   version-check:
     name: version consistency
     runs-on: ubuntu-latest

skills/field-journal/anonymization.md

@@ -197,7 +197,11 @@ grep -nE '[\w\.\-]+@[\w\.\-]+\.\w+' file.md
 grep -nE '\b1[3-9][0-9]{9}\b' file.md
 ```
 
-把这段封装成一个 `field-journal/scripts/scan-leaks.ps1`，每次提交前跑。
+已封装为 `skills/scripts/scan-leaks.ps1`（PowerShell，PS 5.1 / pwsh 兼容），每次提交前跑：
+```powershell
+powershell -File skills/scripts/scan-leaks.ps1 -Path skills/field-journal
+```
+CI（ci.yml `leak-scan` job）已接入该脚本，发现未脱敏信息会直接失败。
 
 ## 反向：阅读他人脱敏文档
 

skills/scripts/scan-leaks.ps1

@@ -0,0 +1,77 @@
+<#
+.SYNOPSIS
+  Scan text/markdown for un-anonymized sensitive info (IP/email/phone/JWT/API keys/tokens).
+
+.DESCRIPTION
+  Companion to skills/field-journal/anonymization.md placeholder rules.
+  Default behavior: exit 1 when findings exist (CI gate).
+  Use -ReportOnly to just report without failing.
+
+.PARAMETER Path
+  File or directory to scan (default: skills/field-journal).
+  Directory -> recursive *.md/*.txt/*.json; File -> that file only.
+
+.PARAMETER ReportOnly
+  Report findings but do not set a failing exit code.
+#>
+param(
+  [string]$Path = "skills/field-journal",
+  [switch]$ReportOnly
+)
+
+$ErrorActionPreference = 'Stop'
+
+# Allowed sample domains (documentation examples are not leaks)
+$allowedDomains = @('example.com','example.org','example.net','example.edu','example.test','test','localhost','local','invalid')
+
+$patterns = @(
+  @{ Name = 'Public IPv4'; Regex = '\b(?!(?:10\.|127\.|172\.(?:1[6-9]|2[0-9]|3[01])\.|192\.168\.|169\.254\.|100\.100\.|198\.51\.100\.|203\.0\.113\.|192\.0\.2\.|0\.0\.0\.|224\.|25[0-5]\.))(?:\d{1,3}\.){3}\d{1,3}\b' }
+  @{ Name = 'Email'; Regex = '\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}\b' }
+  @{ Name = 'CN mobile'; Regex = '\b1[3-9][0-9]{9}\b' }
+  @{ Name = 'JWT'; Regex = 'eyJ[A-Za-z0-9_-]{10,}\.[A-Za-z0-9_-]{10,}\.[A-Za-z0-9_-]{10,}' }
+  @{ Name = 'AWS Access Key'; Regex = '\bAKIA[0-9A-Z]{16}\b' }
+  @{ Name = 'OpenAI key'; Regex = '\bsk-(?:proj-)?[A-Za-z0-9]{20,}\b' }
+  @{ Name = 'GitHub token'; Regex = '\bgh[pousr]_[A-Za-z0-9]{20,}\b' }
+  @{ Name = 'npm token'; Regex = '\bnpm_[A-Za-z0-9]{30,}\b' }
+  @{ Name = 'Slack token'; Regex = '\bxox[baprs]-[A-Za-z0-9-]{10,}\b' }
+  @{ Name = 'Google API key'; Regex = '\bAIza[A-Za-z0-9_-]{35}\b' }
+  @{ Name = 'Stripe live key'; Regex = '\b(?:sk|rk)_live_[A-Za-z0-9]{20,}\b' }
+)
+
+function Test-EmailAllowed {
+  param([string]$Match)
+  $domain = ($Match -split '@')[-1]
+  foreach ($d in $allowedDomains) {
+    if ($domain -eq $d -or $domain.EndsWith('.' + $d)) { return $true }
+  }
+  return $false
+}
+
+$targets = @()
+if (Test-Path $Path -PathType Container) {
+  $targets = Get-ChildItem -Path $Path -Recurse -File -Include *.md,*.txt,*.json | Sort-Object FullName
+} elseif (Test-Path $Path -PathType Leaf) {
+  $targets = @(Get-Item $Path)
+} else {
+  Write-Error "Path not found: $Path"
+  exit 2
+}
+
+$findings = 0
+foreach ($t in $targets) {
+  $lines = Get-Content -Path $t.FullName -Encoding UTF8
+  for ($i = 0; $i -lt $lines.Count; $i++) {
+    $line = $lines[$i]
+    foreach ($p in $patterns) {
+      foreach ($m in [regex]::Matches($line, $p.Regex)) {
+        if ($p.Name -eq 'Email' -and (Test-EmailAllowed $m.Value)) { continue }
+        $findings++
+        $kind = if ($ReportOnly) { 'warning' } else { 'error' }
+        Write-Host "::$kind file=$($t.FullName),line=$($i + 1)::$($p.Name): $($m.Value)"
+      }
+    }
+  }
+}
+
+Write-Host "scan-leaks: scanned $($targets.Count) files, $findings finding(s)"
+if ($findings -gt 0 -and -not $ReportOnly) { exit 1 }