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/performing-firmware-malware-analysis/scripts/agent.py

@@ -31,7 +31,8 @@ class FirmwareAnalysisAgent:
         """Scan firmware with binwalk to identify embedded components."""
         result = subprocess.run(
             ["binwalk", str(self.firmware_path)],
-            capture_output=True, text=True
+            capture_output=True, text=True,
+            timeout=120,
         )
         return {"output": result.stdout, "returncode": result.returncode}
 
@@ -40,7 +41,8 @@ class FirmwareAnalysisAgent:
         extract_dir = self.output_dir / "extracted"
         result = subprocess.run(
             ["binwalk", "-eM", "-C", str(extract_dir), str(self.firmware_path)],
-            capture_output=True, text=True
+            capture_output=True, text=True,
+            timeout=120,
         )
         return {"extract_dir": str(extract_dir), "returncode": result.returncode}
 
@@ -48,7 +50,8 @@ class FirmwareAnalysisAgent:
         """Run binwalk entropy analysis to detect encrypted/compressed regions."""
         result = subprocess.run(
             ["binwalk", "-E", str(self.firmware_path)],
-            capture_output=True, text=True
+            capture_output=True, text=True,
+            timeout=120,
         )
         return {"output": result.stdout}
 
@@ -142,7 +145,8 @@ class FirmwareAnalysisAgent:
             try:
                 result = subprocess.run(
                     ["file", "--brief", str(filepath)],
-                    capture_output=True, text=True
+                    capture_output=True, text=True,
+                    timeout=120,
                 )
                 if "ELF" in result.stdout:
                     binaries.append({