activator removal phase 5.4: Go SDK + Go consumers — propagate status variant renames

[elitegreg]

Part of the activator removal effort — see tracker #3607.

Phase / PR: Phase 5, PR 5.4

Gate: Phase 5.1 merged.

Goal

Mirror the Rust *Deprecated rename in the Go SDK and fix every Go consumer.

Files

• smartcontract/sdk/go/serviceability/state.go — rename Go constants:
  • UserStatusPending → UserStatusPendingDeprecated
  • UserStatusRejected → UserStatusRejectedDeprecated
  • UserStatusPendingBan → UserStatusPendingBanDeprecated (if confirmed activator-only by PR 5.1 audit)
  • DeviceStatusPending, DeviceStatusRejected
  • LinkStatusPending (subject to the controller sentinel decision in PR 5.1), LinkStatusRejected
  • Equivalent MulticastGroupStatus, LocationStatusPending, ExchangeStatusPending constants.
  • Preserve numeric values.
• smartcontract/sdk/go/serviceability/state_test.go, smartcontract/sdk/go/serviceability/influx_test.go, smartcontract/sdk/go/serviceability/client_test.go — fix references.
• client/doublezerod/internal/manager/manager.go and reconciler_test.go — fix references; apply the test handling rule from Phase 4 (no net-loss of coverage).
• controlplane/monitor/internal/serviceability/audits.go and events_test.go — fix references.
• controlplane/controller/internal/controller/server.go, models.go, server_test.go, render_test.go — fix references; if the PR 5.1 audit chose option (b) for the LinkStatusPending sentinel, update the controller to use the new sentinel value.
• controlplane/device-health-oracle/internal/worker/criteria.go and its tests — fix references.
• controlplane/telemetry/internal/{geoprobe,bgpstatus,telemetry}/ — fix references.
• e2e/*_test.go — fix references.

Acceptance

• make go-build and make go-test pass.
• grep -rn "UserStatusPending\b\|DeviceStatusPending\b\|LinkStatusPending\b" returns only the renamed constant uses (and, if option (a) was chosen for the controller sentinel, the unrenamed LinkStatusPending continues to appear).
• Net coverage of legacy/Pending/Rejected behavior is preserved or migrated.