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NB Crash Block v5.5.0

NB Crash Block: Prevents functions.php crashes and provides full admin access when WordPress breaks

Requirement: NetBound Hub must be active.

Why this plugin

Seamless Integration: Designed specifically for the NetBound Ecosystem.
Performance Focused: Lightweight with minimal overhead.
Modern UI: Clean, consistent administrative interfaces.
AI-Era Safety: Purpose-built protections against AI-generated code errors.
Database Resilience: Active thread and table metadata lock monitoring to prevent MySQL connection exhaustion crashes.

Automated updates via NetBound Hub.
Database Lock Sentinel: Live MySQL processlist inspector and one-click query killer to clear table metadata locks and hung queries.
NB Checkup: 10-point health scanner for functions.php — detects code after closing tags, duplicate functions, unmatched braces, dangerous functions, and more.
Versioned Backups: Rolling 5-version backup timeline with change attribution logging.
AI Output Quarantine: Public API for NB plugins to validate code before writing to functions.php.
PHP Syntax Pre-flight: Runs php -l validation before any save, catching parse errors before they crash the site.
AI Code Fingerprinting: Detects placeholder function names, TODO comments, and AI-generated markers.
Standalone emergency recovery panel that works without WordPress.

NEW: Database Lock Sentinel — live MySQL processlist monitor to catch table metadata locks and hung queries with one-click termination.
NEW: Standalone Recovery Panel Database Manager — inspect and kill stuck MySQL threads directly from the emergency panel without WP or phpMyAdmin.
NEW: Direct Theme Editor Links — 1-click jump links to WordPress Theme Editor (functions.php) from error banners and recent logs.
FIX: Fixed wp-config editor 1/4-width bug by adding class exemption from Hub resets and full width flex layout.
NEW: Fail-Safe Status Badges — visual status badges and explanations for WP_DISABLE_FATAL_ERROR_HANDLER and WP_DEBUG_LOG.

NEW: Multiple Alert Emails — supports comma-separated email addresses for crash notifications.
NEW: Domain-First Titles — emergency recovery panel displays domain name first in tabs for bookmarking ease.
NEW: Layout Relocation — shifted critical config editor to Column 1.
NEW: Old recovery panels automatically deleted on page generation.

NEW: Re-enable disabled plugins directly from the standalone emergency recovery panel.

NEW: Recovery Beacon (recover.php) — auto-deployed to webroot on activation. Visit yoursite.com/recover.php when locked out and it silently emails you the current emergency panel URL. Displays only "OK". Rate-limited to 1 email/hour.
NEW: Old emergency panel files are now deleted when a new panel is generated.
NEW: Beacon auto-refreshes when the emergency panel is regenerated.

CRITICAL FIX: PHP closing tag (?>) inside code comments was parsed by PHP as a real closing tag, causing a fatal syntax error on activation.

FIX: Test Crash button now has an enable checkbox — no longer hidden behind version check.
NEW: Delete Disabled Copies — scan and purge .DISABLED plugin folders.
NEW: Copy functions.php to clipboard from the backup section.

NEW: NB Checkup — comprehensive health scanner with 10-point functions.php analysis.
NEW: Versioned Backup Timeline — keeps 5 rolling backups with timestamps.
NEW: Change Attribution Log — tracks who/what modified functions.php.
NEW: AI Output Quarantine API — validates code before committing to functions.php.
NEW: PHP Syntax Pre-flight — runs php -l before saves.
NEW: AI Code Fingerprinting — detects common AI-generated code patterns.
FIX: Backup now works for parent theme functions.php when no child theme is active.

FIX: Split WP_DEBUG_LOG definition string to prevent scanner false positives.

Updates are managed automatically through the NetBound Hub dashboard.