Add eDNC-Fix API endpoints and displaypc.asp integration

API endpoints:
- logDNCEvent: Log events from eDNC-Fix PowerShell script
- getDNCStats: Get all eDNC installations and stats

Database tables (sql/ednc_tables.sql):
- ednc_logs: Event log entries
- ednc_installations: Per-hostname tracking

displaypc.asp:
- Shows eDNC-Fix stats in Applications tab if installed

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

sql/ednc_tables.sql

@@ -0,0 +1,41 @@
+-- ============================================================================
+-- eDNC Special Character Fix - Database Tables
+-- Run on PRODUCTION database to enable eDNC logging
+-- Created: 2025-12-12
+-- ============================================================================
+
+-- Log individual events (cleaned, failed, started, stopped, etc.)
+CREATE TABLE IF NOT EXISTS ednc_logs (
+    logid INT AUTO_INCREMENT PRIMARY KEY,
+    hostname VARCHAR(50) NOT NULL,
+    filename VARCHAR(255) NOT NULL,
+    action ENUM('cleaned', 'ok', 'failed', 'error', 'started', 'stopped') NOT NULL,
+    bytes_removed INT DEFAULT 0,
+    version VARCHAR(20),
+    message VARCHAR(500),
+    created DATETIME DEFAULT CURRENT_TIMESTAMP,
+    INDEX idx_hostname (hostname),
+    INDEX idx_created (created),
+    INDEX idx_action (action)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+-- Track installations per PC
+CREATE TABLE IF NOT EXISTS ednc_installations (
+    installid INT AUTO_INCREMENT PRIMARY KEY,
+    hostname VARCHAR(50) NOT NULL UNIQUE,
+    version VARCHAR(20),
+    watch_folder VARCHAR(255),
+    file_filter VARCHAR(50),
+    first_seen DATETIME DEFAULT CURRENT_TIMESTAMP,
+    last_seen DATETIME DEFAULT CURRENT_TIMESTAMP,
+    is_active TINYINT(1) DEFAULT 1,
+    total_cleaned INT DEFAULT 0,
+    total_failed INT DEFAULT 0,
+    INDEX idx_hostname (hostname),
+    INDEX idx_active (is_active)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+-- Verify tables created
+SELECT 'ednc_logs' AS table_name, COUNT(*) AS row_count FROM ednc_logs
+UNION ALL
+SELECT 'ednc_installations', COUNT(*) FROM ednc_installations;