chore(scripts): add local pre-PR secrecy linter

Mirror .github/workflows/secrecy-check.yml so banned terms are caught
locally before opening/updating a PR instead of after CI fails.

This addresses the repeat 4-time miss on PRs #188/#203/#207/#220 where
the same manual fix had to be applied after CI blocked the PR.

Author: firstdata-dev

scripts/pre-pr-check.sh

@@ -0,0 +1,113 @@
+#!/usr/bin/env bash
+# scripts/pre-pr-check.sh
+#
+# Local secrecy linter for PR body / title / branch name before `gh pr create`
+# or `gh pr edit --body-file`. Mirrors .github/workflows/secrecy-check.yml so
+# failures surface locally instead of being caught by CI after the PR opens.
+#
+# Usage:
+#   scripts/pre-pr-check.sh --body-file /tmp/body.md [--title "..."] [--branch "feat/..."]
+#   scripts/pre-pr-check.sh --body "inline body text"
+#   scripts/pre-pr-check.sh --stdin < body.md
+#   scripts/pre-pr-check.sh --scan-sources           # same scan CI does for firstdata/sources
+#
+# Exit code: 0 = clean, 1 = confidential term found.
+#
+# Keep the BANNED_TERMS list in sync with .github/workflows/secrecy-check.yml.
+set -euo pipefail
+
+BANNED_TERMS=(
+  "langfuse"
+  "insight pipeline"
+  "gitlab"
+  "code.mlamp.cn"
+  "codex.mlamp.cn"
+  "glab"
+  "im.deepminer"
+  "im-test.xming"
+)
+
+BODY=""
+BODY_FILE=""
+TITLE=""
+BRANCH=""
+SCAN_SOURCES=0
+READ_STDIN=0
+
+usage() {
+  sed -n '2,18p' "$0"
+  exit 2
+}
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --body)         BODY="$2"; shift 2 ;;
+    --body-file)    BODY_FILE="$2"; shift 2 ;;
+    --title)        TITLE="$2"; shift 2 ;;
+    --branch)       BRANCH="$2"; shift 2 ;;
+    --stdin)        READ_STDIN=1; shift ;;
+    --scan-sources) SCAN_SOURCES=1; shift ;;
+    -h|--help)      usage ;;
+    *)              echo "Unknown arg: $1" >&2; usage ;;
+  esac
+done
+
+if [[ -n "$BODY_FILE" ]]; then
+  if [[ ! -f "$BODY_FILE" ]]; then
+    echo "::error::body file not found: $BODY_FILE" >&2
+    exit 2
+  fi
+  BODY="$(cat "$BODY_FILE")"
+fi
+
+if [[ "$READ_STDIN" -eq 1 ]]; then
+  BODY="$(cat)"
+fi
+
+if [[ -z "$BRANCH" ]] && command -v git >/dev/null 2>&1; then
+  BRANCH="$(git rev-parse --abbrev-ref HEAD 2>/dev/null || true)"
+fi
+
+found=0
+
+check_field() {
+  local label="$1"
+  local text="$2"
+  [[ -z "$text" ]] && return 0
+  local lower_text
+  lower_text=$(printf '%s' "$text" | tr '[:upper:]' '[:lower:]')
+  for term in "${BANNED_TERMS[@]}"; do
+    local lower_term
+    lower_term=$(printf '%s' "$term" | tr '[:upper:]' '[:lower:]')
+    if [[ "$lower_text" == *"$lower_term"* ]]; then
+      echo "🔴 BLOCKED: '$term' found in $label" >&2
+      found=1
+    fi
+  done
+}
+
+check_field "branch name"    "$BRANCH"
+check_field "PR title"       "$TITLE"
+check_field "PR description" "$BODY"
+
+if [[ "$SCAN_SOURCES" -eq 1 ]]; then
+  repo_root="$(git rev-parse --show-toplevel 2>/dev/null || pwd)"
+  src_dir="$repo_root/firstdata/sources"
+  if [[ -d "$src_dir" ]]; then
+    for term in "${BANNED_TERMS[@]}"; do
+      matches=$(grep -ril "$term" "$src_dir" 2>/dev/null || true)
+      if [[ -n "$matches" ]]; then
+        echo "🔴 '$term' found in source files:" >&2
+        printf '  %s\n' $matches >&2
+        found=1
+      fi
+    done
+  fi
+fi
+
+if [[ "$found" -eq 1 ]]; then
+  echo "::error::PR metadata or sources contain confidential term(s). Rewrite before opening / updating the PR." >&2
+  exit 1
+fi
+
+echo "✅ Pre-PR secrecy check passed."