CRITICAL FIX: Correct SCRIPT_DIR path calculation in enable-cphulk.sh

BUG #6 - Wrong SCRIPT_DIR calculation (line 22)
PROBLEM:
- Script located at: /root/server-toolkit/modules/security/enable-cphulk.sh
- Old path: dirname/../ = /root/server-toolkit/modules (WRONG!)
- Library files at: /root/server-toolkit/lib/

IMPACT:
- source "$SCRIPT_DIR/lib/common-functions.sh" → FILE NOT FOUND
- source "$SCRIPT_DIR/lib/system-detect.sh" → FILE NOT FOUND
- Script would FAIL immediately on startup

ROOT CAUSE:
Script in modules/security/ subdirectory (2 levels deep)
But path calculation only went up 1 level

FIX:
Changed from: dirname "${BASH_SOURCE[0]}")/.."
Changed to:   dirname "${BASH_SOURCE[0]}")/../.."
Now goes up 2 levels: /modules/security → /modules → /root/server-toolkit

VERIFICATION:
✓ Tested: SCRIPT_DIR now resolves to /root/server-toolkit
✓ Verified: lib/common-functions.sh found
✓ Verified: lib/system-detect.sh found
✓ Syntax validation: PASS

This was the MOST CRITICAL bug - script couldn't even start!

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

modules/security/enable-cphulk.sh

@@ -18,8 +18,8 @@
 # - Supports multiple IP formats: simple IPs, s=IP, d=IP, CIDR notation
 ################################################################################
 
-# Get script directory
+# Get script directory (go up 2 levels: /modules/security -> /modules -> /root/server-toolkit)
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
 source "$SCRIPT_DIR/lib/common-functions.sh"
 source "$SCRIPT_DIR/lib/system-detect.sh"