fix: BUG-053,055,058,060,061,067,069 - JS minification, meta tags, skip-link, docs footer

- BUG-053: Add terser JS minification to build process
- BUG-060: Add og:image, twitter:card, twitter:image to sub-pages
- BUG-067: Update skip-link to #main-content on all pages

scripts/healthcheck-monitor.sh

@@ -0,0 +1,93 @@
+#!/bin/bash
+
+# Health check monitoring script for DocFast
+# Runs every 5 minutes via cron
+
+HEALTH_URL="https://docfast.dev/health"
+LOG_FILE="/var/log/docfast-healthcheck.log"
+DOWN_MARKER="/tmp/docfast-down"
+STATE_FILE="/tmp/docfast-healthcheck-state"
+MAX_LOG_LINES=1000
+
+# Initialize state file if it doesn't exist
+if [ ! -f "$STATE_FILE" ]; then
+    echo "0" > "$STATE_FILE"
+fi
+
+# Function to rotate log if it exceeds max lines
+rotate_log() {
+    if [ -f "$LOG_FILE" ]; then
+        local line_count=$(wc -l < "$LOG_FILE")
+        if [ "$line_count" -gt "$MAX_LOG_LINES" ]; then
+            # Keep only the last 1000 lines
+            tail -n "$MAX_LOG_LINES" "$LOG_FILE" > "${LOG_FILE}.tmp"
+            mv "${LOG_FILE}.tmp" "$LOG_FILE"
+        fi
+    fi
+}
+
+# Function to log messages
+log_message() {
+    local msg="$1"
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $msg" >> "$LOG_FILE"
+    rotate_log
+}
+
+# Perform health check
+check_health() {
+    response=$(curl -s -w "\n%{http_code}" "$HEALTH_URL" 2>/dev/null)
+    http_code=$(echo "$response" | tail -n1)
+    body=$(echo "$response" | head -n-1)
+    
+    # Check if HTTP 200 and contains "status":"ok"
+    if [ "$http_code" = "200" ] && echo "$body" | grep -q '"status":"ok"'; then
+        return 0  # Success
+    else
+        return 1  # Failure
+    fi
+}
+
+# Get current failure count
+get_failure_count() {
+    cat "$STATE_FILE"
+}
+
+# Increment failure count
+increment_failure() {
+    local count=$(get_failure_count)
+    echo $((count + 1)) > "$STATE_FILE"
+}
+
+# Reset failure count
+reset_failure() {
+    echo "0" > "$STATE_FILE"
+}
+
+# Main logic
+if check_health; then
+    # Health check passed
+    failure_count=$(get_failure_count)
+    if [ "$failure_count" -gt 0 ]; then
+        log_message "✓ Service recovered after $failure_count failure(s)"
+        if [ -f "$DOWN_MARKER" ]; then
+            rm -f "$DOWN_MARKER"
+            log_message "Removed downtime marker"
+        fi
+    fi
+    reset_failure
+else
+    # Health check failed
+    increment_failure
+    failure_count=$(get_failure_count)
+    log_message "✗ Health check failed (attempt $failure_count)"
+    
+    # After 2 consecutive failures, mark as down
+    if [ "$failure_count" -ge 2 ]; then
+        if [ ! -f "$DOWN_MARKER" ]; then
+            touch "$DOWN_MARKER"
+            log_message "⚠ DOWNTIME DETECTED - Marker file created"
+        fi
+    fi
+fi
+
+exit 0