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/analyzing-typosquatting-domains-with-dnstwist/scripts/agent.py

@@ -75,11 +75,9 @@ if __name__ == '__main__':
     print('=' * 60)
     domain = sys.argv[1] if len(sys.argv) > 1 else None
     if not domain:
-        print('
-[DEMO] Usage: python agent.py <domain.com>')
+        print('\n[DEMO] Usage: python agent.py <domain.com>')
         sys.exit(0)
-    print(f'
-[*] Target: {domain}')
+    print(f'\n[*] Target: {domain}')
     dnstwist_results = run_dnstwist_cli(domain)
     if dnstwist_results:
         print(f'[*] dnstwist found {len(dnstwist_results)} permutations')
@@ -95,5 +93,4 @@ if __name__ == '__main__':
         for r in resolved[:15]:
             print(f'  {r["domain"]:40s} {", ".join(r["ips"])}')
         risk = 'HIGH' if len(resolved) > 20 else 'MEDIUM' if len(resolved) > 5 else 'LOW'
-        print(f'
-[*] Risk: {risk}')
+        print(f'\n[*] Risk: {risk}')