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/deploying-software-defined-perimeter/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: deploying-software-defined-perimeter
-description: Deploying Software Defined Perimeter
+description: Deploy a Software-Defined Perimeter using the CSA v2.0 specification with Single Packet Authorization, mutual TLS, and SDP controller/gateway configuration to enforce zero trust network access.
 domain: cybersecurity
 subdomain: security-operations
 tags: [cybersecurity]
@@ -77,7 +77,7 @@ After SPA validation, both the client and server authenticate each other using X
 ### Dynamic Provisioning
 SDP connections are provisioned on-demand based on real-time policy evaluation. No persistent network tunnels exist; each session is individually authorized and encrypted.
 
-## Procedure
+## Workflow
 
 ### Phase 1: SDP Controller Deployment