Remove Warp cloud features and OpenTelemetry

Settings cleanup:
- Remove billing_and_usage, main_page, referrals_page, show_blocks_view,
  environments_page, handoff_environment_creation_modal,
  custom_inference_modal, remove_custom_endpoint_confirmation_dialog,
  transfer_ownership_confirmation_modal, delete_environment_confirmation_dialog
- Remove SettingsSection variants: Account, BillingAndUsage, Referrals,
  SharedBlocks, CloudEnvironments, OzCloudAPIKeys
- Remove SettingsPageViewHandle variants: Main, BillingAndUsage, Referrals,
  CloudEnvironments, OzCloudAPIKeys, SharedBlocks
- Add Platform variant for PlatformPageView
- Gut custom inference endpoint UI from ai_page.rs
- Gut transfer ownership modal from teams_page.rs
- Stub environment_management_pane as dead code
- Remove create_discount_badge usage
- Remove handle_experiment_change call

OpenTelemetry removal:
- Remove opentelemetry, opentelemetry-http, opentelemetry-otlp,
  opentelemetry_sdk, tracing-opentelemetry dependencies
- Replace tracing module with no-op stub
- Delete native.rs and cloud_agent_auth.rs

Bug fixes (prior work):
- Fix apply_diffs() to use markdown_unescaped(ctx)
- Fix notebook executor AIDocumentId handling
- Fix margin/corner-radius consistency in requested_command.rs
- Add document tool handlers to extract_tool_result_content()
- Fix deprecated from_byte_stream in MCP SSE transport
- Fix Cargo.toml profile package spec
- Upgrade rust-toolchain to 1.94.1

app/src/terminal/enable_auto_reload_modal.rs

@@ -20,7 +20,6 @@ use crate::modal::{Modal, ModalEvent, MODAL_PADDING, MODAL_WIDTH};
 use crate::pricing::{PricingInfoModel, PricingInfoModelEvent};
 use crate::send_telemetry_from_ctx;
 use crate::server::telemetry::{AutoReloadModalAction, TelemetryEvent};
-use crate::settings_view::create_discount_badge;
 use crate::ui_components::blended_colors;
 use crate::view_components::{Dropdown, DropdownAction, ToastFlavor};
 use crate::workspaces::user_workspaces::{UserWorkspaces, UserWorkspacesEvent};
@@ -182,7 +181,7 @@ impl EnableAutoReloadModalBody {
                             .with_color(text_color.into())
                             .finish();
 
-                            let discount_badge = create_discount_badge(discount_percent, appearance);
+                            let discount_badge = Empty::new().finish();
 
                             Flex::row()
                                 .with_cross_axis_alignment(CrossAxisAlignment::Center)