activator removal phase 7.2: remove device/link/multicastgroup activate/reject/closeaccount instructions [DO NOT MERGE — gated on min_compatible_version >= 0.14.1]

[elitegreg]

⚠️ DO NOT MERGE until the onchain min_compatible_version has been bumped to ≥ 0.14.1. ⚠️

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

Phase / PR: Phase 7, PR 7.2

Gate: onchain ProgramConfig.min_compatible_version ≥ 0.14.1.

Goal

Same treatment as PR 7.1 for the contributor-side instructions: remove the activator-only instructions; dispatch entries stay and return DoubleZeroError::InstructionDeprecated.

Files

• processors/device/{activate,reject,closeaccount}.rs — delete; dispatch returns InstructionDeprecated.
• processors/link/{activate,reject,closeaccount}.rs — delete; dispatch returns InstructionDeprecated.
• processors/multicastgroup/{activate,reject,closeaccount}.rs — delete; dispatch returns InstructionDeprecated.
• processors/device/interface/{activate,reject,remove,unlink}.rs — same. All four are activator-driven (the activator imports DeviceInterfaceUnlinkArgs). Their argument structs go with them.
• processors/resource/closeaccount.rs — review whether this is still needed or activator-only; if activator-only, same treatment.
• Corresponding smartcontract/sdk/rs/src/commands/.../*.rs — delete.
• Tests — rewrite to assert InstructionDeprecated, or delete if redundant.

Explicitly preserved (verified non-activator-driven by codebase audit)

• link/accept, link/suspend, device/resume, device/update, multicastgroup/reactivate, multicastgroup/suspend — all operator/admin-driven, not activator-driven.

Acceptance

• cargo test -p doublezero-serviceability passes.
• Sending any of the removed instructions returns InstructionDeprecated.

Risk

Same as 7.1. Coordinate with contributors before bumping the gate.