Elect one fleet torrent seeder per AWS VPC via IMDS cloud_instance_meta.

Agents read vpc-id from EC2 IMDS on auth; the server scopes subnet_primary_seeder to vpc-id with /24 fallback, exposes VPC seeder badges, and documents cross-VPC gossip via peering/TGW.

server/web/src/help/uiHelp.test.ts

@@ -64,11 +64,9 @@ describe('UI_HELP', () => {
     'fm_encrypt_path',
     'pt_path_tracer',
     'pt_agent_chain',
-    'pt_subnet_autopsy',
     'fleet_runtime_policy',
     'fleet_runtime_modules',
     'spread_funnel_widget',
-    'subnet_immune_autopsy',
     'md_overview',
     'md_operation_chip',
     'md_spread_profile',
@@ -84,10 +82,6 @@ describe('UI_HELP', () => {
     'ew_install_links',
     'ew_spread_kit',
     'ew_war_room',
-    'ew_cloud_ecosystem',
-    'ew_cloud_aws',
-    'ew_cloud_generic',
-    'ew_ssm_document',
     'ew_supply_chain',
     'ew_public_urls',
     'ew_techniques',
@@ -110,7 +104,6 @@ describe('UI_HELP', () => {
     'set_webhook',
     'ui_color_scheme',
     'crucible_section_spread_templates',
-    'crucible_section_launch_template',
   ] as const;
 
   it('defines help for every documented UI key', () => {