Add WEBRUNNER distributed geo-targeted recon module

Multi-provider (Linode/AWS/FlokiNET) scan orchestration:
- Flatten all country CIDRs, chunk by IP count (sprint/balanced/economy presets)
- Assign chunks round-robin across providers
- Cost+time estimate table before deploy
- Ansible provisions N nodes in parallel, runs masscan/nmap/probe per node
- Results fetched back and merged into unified JSON report
- Scanner IPs logged per engagement for client IR reporting
- Operator IP whitelisting, enhanced OPSEC mode, YAML targets.yaml support

modules/webrunner/tasks/collect_results.yml

@@ -0,0 +1,19 @@
+---
+# Fetch scan results from node back to controller
+
+- name: Check results exist on {{ node_name }}
+  stat:
+    path: /root/webrunner/results.json
+  register: results_stat
+
+- name: Fetch results from {{ node_name }}
+  fetch:
+    src: /root/webrunner/results.json
+    dest: "{{ results_dir }}/{{ node_name }}_results.json"
+    flat: true
+  when: results_stat.stat.exists
+
+- name: Warn if no results from {{ node_name }}
+  debug:
+    msg: "No results.json found on {{ node_name }} — scan may have failed"
+  when: not results_stat.stat.exists