Production hardening: security fixes, code quality, 724 skills complete

- Fix 25 shell=True subprocess calls with list-based commands
- Fix 49 verify=False in defensive skills (env-var override)
- Add timeout to 231 HTTP/subprocess/socket calls
- Fix 6 SQL injection patterns with whitelist validation
- Replace 8 __import__() with standard imports
- Remove 701 unused imports across 442 files
- Add authorized-testing disclaimers to all offensive skills
- Complete 11 incomplete skill directories
- Expand 10 stub SKILL.md files with full content
- Fix 2 YAML parse errors in frontmatter
- Fix 5 pre-existing syntax errors
- Convert 22 hardcoded paths/ports to environment variables
- Back up 21 redundant skill pairs to .bak
- Fix 2 global declaration errors
- 724/724 skills with full folder anatomy (SKILL.md + agent.py + api-reference.md + LICENSE)
- 0 compile errors across all 724 agent.py files

skills/detecting-ransomware-precursors-in-network/scripts/agent.py

@@ -4,7 +4,6 @@
 import argparse
 import json
 import os
-import re
 import subprocess
 import sys
 from datetime import datetime, timezone
@@ -91,7 +90,8 @@ def scan_process_list():
     if sys.platform == "win32":
         try:
             out = subprocess.check_output(
-                ["tasklist", "/FO", "CSV", "/NH"], text=True, errors="replace"
+                ["tasklist", "/FO", "CSV", "/NH"], text=True, errors="replace",
+                timeout=120,
             )
             for line in out.splitlines():
                 parts = line.strip('"').split('","')
@@ -104,7 +104,7 @@ def scan_process_list():
             pass
     else:
         try:
-            out = subprocess.check_output(["ps", "-eo", "pid,comm", "--no-headers"], text=True)
+            out = subprocess.check_output(["ps", "-eo", "pid,comm", "--no-headers"], text=True, timeout=120)
             for line in out.splitlines():
                 parts = line.split(None, 1)
                 if len(parts) == 2: