Migrate to Postgresql for better network handling. Add more user functionality.

db/migrate/003_create_network_ranges.rb

@@ -0,0 +1,43 @@
+# frozen_string_literal: true
+
+class CreateNetworkRanges < ActiveRecord::Migration[8.1]
+  def change
+    create_table :network_ranges, force: :cascade do |t|
+      # Postgres inet type handles both IPv4 and IPv6 networks
+      t.inet :network, null: false, index: { unique: true, name: 'index_network_ranges_on_network_unique' }
+
+
+      # Track the source of this network range
+      t.string :source, default: 'api_imported', null: false, index: true
+      t.text :creation_reason
+
+      # Network intelligence metadata
+      t.integer :asn, index: true
+      t.string :asn_org, index: true
+      t.string :company, index: true
+      t.string :country, index: true
+
+      # Network classification flags
+      t.boolean :is_datacenter, default: false, index: true
+      t.boolean :is_proxy, default: false
+      t.boolean :is_vpn, default: false
+      t.index [:is_datacenter, :is_proxy, :is_vpn], name: 'idx_network_flags'
+
+      # JSON fields for additional data
+      t.text :abuser_scores
+      t.text :additional_data
+
+      # API enrichment tracking
+      t.datetime :last_api_fetch
+
+      # Track creation (optional - some ranges are auto-imported)
+      t.references :user, foreign_key: true
+
+      t.timestamps
+
+      # Postgres network indexes for performance
+      # GiST index for network containment operations (>>=, <<=, &&)
+      t.index :network, using: :gist, opclass: :inet_ops
+    end
+  end
+end