TESTING PHASE: Add comprehensive validation scripts for InterWorx and Plesk

Created automated validation framework to test multi-panel refactoring on real servers.

NEW FILES:
- testing/validate-interworx.sh (650+ lines)
  - 10 comprehensive tests validating all InterWorx assumptions
  - File system structure, logs, domain lookups, database prefix
  - WordPress detection, cron system, PHP config, CLI tools
  - Color-coded output + detailed results file

- testing/validate-plesk.sh (750+ lines)
  - 12 comprehensive tests validating all Plesk assumptions
  - File system structure, logs, plesk bin commands
  - Domain/user lookups, database prefix, system user detection
  - WordPress detection, cron system, PHP config
  - Critical: Determines system user for cron jobs

- testing/README.md
  - Complete testing guide and documentation
  - Quick start instructions for both panels
  - What gets validated and why
  - 4-phase testing priority plan
  - Known issues and next steps

UPDATED:
- REFDB_FORMAT.txt
  - Added TESTING & VALIDATION PHASE section
  - Documented validation scripts and their coverage
  - Listed testing priority and next actions
  - Updated last modified date

VALIDATION COVERAGE:
InterWorx (10 tests):
  ✅ All file paths (verified from official docs)
  ✅ Database prefix: username_ (verified)
  ⏳ Domain→User lookup (needs real server)
  ⏳ User→Domains lookup (needs real server)
  ⏳ WordPress detection (needs real server)

Plesk (12 tests):
  ⏳ File paths (assumed correct)
  ❓ Database prefix (appears to be no prefix)
  ❓ System user for cron (critical for wordpress-cron-manager!)
  ❓ Cron system (standard vs plesk bin cron)
  ⏳ All lookup methods (need real server)

READY FOR: Testing on real InterWorx and Plesk servers

REFDB_FORMAT.txt

@@ -972,9 +972,82 @@ unknowns_blocking_full_support:
     - System user for PHP processes (affects cron jobs!)
     - Cron management method (standard vs plesk bin)
 
+################################################################################
+# TESTING & VALIDATION PHASE
+################################################################################
+
+testing_phase_status:
+  phase: "Testing & Validation"
+  date_started: "2025-11-20"
+  refactoring_complete: true
+  modules_refactored: "38/38 (100%)"
+
+validation_scripts:
+  location: "/root/server-toolkit/testing/"
+
+  interworx_validator:
+    script: "validate-interworx.sh"
+    tests: 10
+    validates:
+      - Control panel detection
+      - File system structure (/home/USER/DOMAIN/html/)
+      - Log locations (/home/USER/var/DOMAIN/logs/)
+      - Domain→User lookup (vhost configs)
+      - User→Domains lookup (2 methods)
+      - Database prefix (username_)
+      - Cron system (standard crontab)
+      - PHP configuration
+      - WordPress detection
+      - InterWorx CLI tools
+    output: "/tmp/interworx-validation-results.txt"
+    status: "Ready for testing on real server"
+
+  plesk_validator:
+    script: "validate-plesk.sh"
+    tests: 12
+    validates:
+      - Control panel detection
+      - File system structure (/var/www/vhosts/DOMAIN/httpdocs/)
+      - Log locations (/var/www/vhosts/system/DOMAIN/logs/)
+      - plesk bin commands
+      - Domain→User lookup (plesk bin subscription --info)
+      - User→Domains lookup (plesk bin subscription --list)
+      - Database prefix pattern
+      - System user for web processes (CRITICAL!)
+      - Cron system (standard vs plesk bin cron)
+      - PHP configuration
+      - WordPress detection
+      - Apache/nginx configuration
+    output: "/tmp/plesk-validation-results.txt"
+    status: "Ready for testing on real server"
+
+  documentation:
+    file: "testing/README.md"
+    contains:
+      - Quick start guide
+      - What gets validated
+      - How to interpret results
+      - Testing priority (4 phases)
+      - Known issues and limitations
+      - Next steps
+
+testing_priority:
+  phase_1: "Run validation scripts on real InterWorx/Plesk servers"
+  phase_2: "Test simple Class B modules (log discovery)"
+  phase_3: "Test complex Class C modules (user/domain management)"
+  phase_4: "Production readiness and performance testing"
+
+next_action_required:
+  1. "Get access to InterWorx test server"
+  2. "Get access to Plesk test server"
+  3. "Run validate-interworx.sh and collect results"
+  4. "Run validate-plesk.sh and collect results"
+  5. "Fix any issues found during validation"
+  6. "Test real modules on validated servers"
+
 [END]
 # This file is the ONLY developer reference document.
 # README.md is for users, this file is for developers (Claude).
 # Keep this updated after every significant change.
-# Last updated: 2025-11-19
+# Last updated: 2025-11-20 (Testing phase started)
 ################################################################################