Tidy up homepage and navigation

app/models/event.rb

@@ -1,8 +1,6 @@
 # frozen_string_literal: true
 
 class Event < ApplicationRecord
-  belongs_to :project
-
   # Normalized association for hosts (most valuable compression)
   belongs_to :request_host, optional: true
 
@@ -87,13 +85,12 @@ class Event < ApplicationRecord
   # Normalize event fields after extraction
   after_validation :normalize_event_fields, if: :should_normalize?
 
-  def self.create_from_waf_payload!(event_id, payload, project)
+  def self.create_from_waf_payload!(event_id, payload)
     # Normalize headers in payload during import phase
     normalized_payload = normalize_payload_headers(payload)
 
     # Create the WAF request event
     create!(
-      project: project,
       event_id: event_id,
       timestamp: parse_timestamp(normalized_payload["timestamp"]),
       payload: normalized_payload,