x/staking_tiers Real (skeleton)

Six-tier locked-stake schema. Each tier is a stake floor and a set of rights. Ties together every other DAIT module: x/compute_market checks Node tier before allowing a provider, x/messaging uses tier for daily quota, x/pouw uses tier for slashing, x/tee_attest uses tier as a registration prerequisite.

The tiers

Tier	Stake floor (DAIT)	Rights
User	0	submit jobs, pay gas
Heavy consumer	369	priority queue
Node	3,690 per registered GPU	host compute, earn fees + PoUW credits
Supernode	36,900 per multi-GPU rack	priority routing, 1.25x reward multiplier
Validator	369,000 self-bond	propose blocks
Oracle	3,690,000 + manual approval	DNS, contract negotiation

Tier-specific slashing

Node downtime: -3% (300 bps)
Supernode downtime: -6% (600 bps)
Bad attestation (any tier): -100%

The keeper exposes SlashFractionFor(tier, offense) and SlashFractionForBadAttestation() for the slashing pipeline to call.

Messages

MsgRegisterTier   { signer, tier_id }
MsgUpgradeTier    { signer, new_tier_id }
MsgUnregister     { signer }
MsgRegisterGPU    { signer, gpu_uuid, attestation_pubkey }
MsgUnregisterGPU  { signer, gpu_uuid }
MsgUpdateParams   { authority, params }   // gov-only

Queries

Params - module parameters and full tier table
TierForAddress(addr) - current tier registration for an address
GPUsForAddress(addr) - registered GPU UUIDs for an address
ListByTier(tier_id, pagination) - paginated address list per tier

State

KeyPrefixRegistration       address -> Registration{tier, joined_height}
KeyPrefixGPU                (address, gpu_uuid) -> GPURegistration
KeyPrefixApprovalRequest    pending Oracle-tier approvals (gov-gated)

Cross-module hooks

x/tee_attest calls StakingTiersKeeper.HasGPURegistration(addr, gpu_uuid) when accepting an attestation.
x/compute_market calls HasTierForProvider(addr, NODE) when accepting MsgCreateProvider.
x/messaging looks up tier to determine daily message quota baseline.

What's wired today

Real Module wiring, params storage, KV layout, all read queries (Params, TierForAddress, GPUsForAddress, ListByTier), ValidateBasic for every Msg, gov-only MsgUpdateParams.

Phase 1 Msg handlers (RegisterTier, UpgradeTier, RegisterGPU, UnregisterGPU) currently return ErrNotImplemented. Slashing pipeline integration, Oracle approval queue, tier auto-demotion on stake unbonding.