feat(consensus): Phase 1.4 — Consensus PoA canonical Aura+GRANDPA v0.0.6

Origin Chain runtime canonical ahora produces blocks + finalizes via
Aura+GRANDPA per CHN-1 ratified. PoA Phase 1 substrate fundación bien anclada.

## Pallets añadidos canonical (per SBS-4)

- Index 4 Aura (pallet_aura 39.0.0) — block production canonical PoA per CHN-1
  Round-Robin 6-segundo slots alineados Pi 5 + NVMe SSD. AuraId sr25519.
- Index 5 Grandpa (pallet_grandpa 40.0.0) — finality gadget per CHN-1
  2/3 honest majority irreversible confirmation. GrandpaId Ed25519.

## Primitives consumidas
- sp-consensus-aura 0.42.0 (feature serde canonical)
- sp-consensus-grandpa 23.0.0 → 23.1.0 (feature serde canonical)

## Configs canonical
- pallet_aura::Config: MaxAuthorities 32 + AllowMultipleBlocksPerSlot false
  + SlotDuration = MinimumPeriodTimesTwo (clock↔consensus coupling canonical)
- pallet_grandpa::Config: MaxAuthorities 32 + MaxNominators 0 + KeyOwnerProof
  Void + EquivocationReportSystem () (Phase 1 simple, real Phase 2 NPoS)

## Wiring canonical clock↔consensus
pallet_timestamp::OnTimestampSet = crate::Aura (was ()) — cada nuevo
timestamp triggera Aura slot advance canonical. Materializa 6-segundo block
production deterministic Pi 5.

## Opaque SessionKeys canonical (nuevo opaque.rs module)
impl_opaque_keys! con aura (sr25519) + grandpa (Ed25519) — substrate canonical
pattern para forkless runtime upgrades. Cada validator posee 2 keys canonical.
Pre-Phase 1.5: static keys en genesis chain_spec. Phase 1.5: pallet_session
introduces rotation 4h epochs per CHN-1.

## Filosofía canonical
opaque.rs cita David canon 2026-05-14 "la libertad infinita acota solo donde
empieza la del otro" — opaque types son la frontera canonical entre node
sovereignty + runtime sovereignty. Each layer respeta la libertad del otro.

## Build + tests
- cargo check 6.17s warm cache (Aura+Grandpa deps incremental)
- cargo build --release 8.64s warm cache clean
- ~57 tests passing (count preserved — Aura/Grandpa tests llegan Phase 1.5+)

## Edge case empírico
pallet-aura 39.0.0 + pallet-grandpa 40.0.0 NO exponen feature
runtime-benchmarks en stable2512 canonical. Wire-up benchmark scaffolding
land Phase 1.5+ cuando pallet_session se integre.

## Phase 1 progress
1.1 ✅ + 1.2 ✅ + 1.3 ✅ + 1.4 ✅ (esta). Next: 1.5 pallet_session validator
rotation 4h epochs per CHN-1.

Origin Chain runtime composition canonical actual (6 pallets):
- 0 System + 1 Timestamp + 2 Balances + 3 TransactionPayment
- 4 Aura + 5 Grandpa
- Opaque SessionKeys: aura sr25519 + grandpa Ed25519

Refs: CHARON_ROADMAP_V1 Phase 1.4, CHN-1 ratified Aura+GRANDPA canonical,
SBS-4 ratified extended pallet set

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

crates/origin-chain-runtime/src/configs.rs

@@ -40,8 +40,7 @@ use crate::{
 };
 use frame_support::derive_impl;
 use frame_support::parameter_types;
-use frame_support::traits::VariantCountOf;
-use sp_runtime::traits::ConstU32;
+use frame_support::traits::{ConstBool, ConstU32, ConstU64, VariantCountOf};
 
 // ============================================================
 // Canonical constants (per CHN-1/2/8 + SBS-3)
@@ -141,7 +140,10 @@ parameter_types! {
 
 impl pallet_timestamp::Config for Runtime {
     type Moment = u64;
-    type OnTimestampSet = (); // Phase 1.2: Aura wired aquí cuando se integre
+    /// `Aura` wired canonical post Phase 1.4: cada nuevo timestamp triggera el
+    /// Aura slot advance canonical. Materializa el coupling consensus↔clock que
+    /// hace posible 6-segundo block production deterministic canonical.
+    type OnTimestampSet = crate::Aura;
     type MinimumPeriod = MinimumPeriod;
     type WeightInfo = pallet_timestamp::weights::SubstrateWeight<Runtime>;
 }
@@ -168,3 +170,62 @@ impl pallet_transaction_payment::Config for Runtime {
     type FeeMultiplierUpdate = ();
     type WeightInfo = pallet_transaction_payment::weights::SubstrateWeight<Runtime>;
 }
+
+// ============================================================
+// pallet_aura::Config canonical (CHN-1 — block production PoA)
+// ============================================================
+
+/// Canonical Aura authority id type. `sr25519` canonical per Substrate
+/// standard — más eficiente que Ed25519 para slot signing canonical (Schnorr
+/// signature aggregation futuro). Wallet identity sigue Ed25519 (CHN-7), pero
+/// validator authority keys sr25519 per Substrate convention canonical.
+pub type AuraId = sp_consensus_aura::sr25519::AuthorityId;
+
+impl pallet_aura::Config for Runtime {
+    type AuthorityId = AuraId;
+    /// `DisabledValidators = ()`: Phase 1 PoA simple — no disable mechanism
+    /// canonical. Phase 2 NPoS introduces pallet_session disabling vía slashing.
+    type DisabledValidators = ();
+    /// `MaxAuthorities = 32`: canonical para Phase 1 PoA (5-7 validators
+    /// inaugurales + room para growth pre-NPoS). Aligned con polkadot-stable2512
+    /// solochain-template default canonical.
+    type MaxAuthorities = ConstU32<32>;
+    /// `AllowMultipleBlocksPerSlot = false`: canonical Substrate — un block por
+    /// slot. Disallow multiplicity para deterministic block time canonical Pi 5.
+    type AllowMultipleBlocksPerSlot = ConstBool<false>;
+    /// Slot duration canonical = `pallet_aura::MinimumPeriodTimesTwo<Runtime>` —
+    /// derivado automáticamente del `pallet_timestamp::MinimumPeriod` config
+    /// canonical. Garantiza coupling canonical entre clock + consensus slot.
+    type SlotDuration = pallet_aura::MinimumPeriodTimesTwo<Runtime>;
+}
+
+// ============================================================
+// pallet_grandpa::Config canonical (CHN-1 — finality gadget)
+// ============================================================
+
+/// Canonical GRANDPA authority id type. `Ed25519` canonical per GRANDPA spec —
+/// signature aggregation matemáticamente diferente a Aura sr25519 pero
+/// canonical convention.
+pub type GrandpaId = sp_consensus_grandpa::AuthorityId;
+
+impl pallet_grandpa::Config for Runtime {
+    type RuntimeEvent = RuntimeEvent;
+    /// `WeightInfo = ()`: Phase 1 PoA simple. Phase 2 NPoS introduces real
+    /// weights para equivocation reporting + on_finalize hooks canonical.
+    type WeightInfo = ();
+    /// `MaxAuthorities = 32`: aligned con Aura canonical para 1:1 mapping
+    /// validator ↔ finalizer Phase 1 PoA (mismo set canonical).
+    type MaxAuthorities = ConstU32<32>;
+    /// `MaxNominators = 0`: Phase 1 PoA simple — no nominators canonical (no
+    /// stake delegation aún). Phase 2 NPoS bump canonical a 256 nominators.
+    type MaxNominators = ConstU32<0>;
+    /// `MaxSetIdSessionEntries = 0`: Phase 1 simple — no historical session
+    /// proofs canonical. Phase 2 NPoS introduces session tracking.
+    type MaxSetIdSessionEntries = ConstU64<0>;
+    /// `KeyOwnerProof = sp_core::Void`: Phase 1 simple — no equivocation proof
+    /// type. Phase 2 NPoS introduces real `MembershipProof` canonical.
+    type KeyOwnerProof = sp_core::Void;
+    /// `EquivocationReportSystem = ()`: Phase 1 PoA simple — equivocation
+    /// reports not handled. Phase 2 NPoS introduces real handler canonical.
+    type EquivocationReportSystem = ();
+}