feat(bench): maquinaria FRAME v2 de benchmarking para los 5 pallets custom (RV 8→9)

Los 19 extrinsics de provenance/fees/agent-identity/emission/governance pasan de
weights placeholder `from_parts(10_000, 0)` (proof_size=0, sin contar reads/writes
de DB — vector de DoS real) a weights INTERIM hand-derived DB-aware vía el trait
`WeightInfo`. Cierra el mispricing de DoS en TODOS los extrinsics del chain.

Cada pallet gana:
- weights.rs: trait WeightInfo + SubstrateWeight<T> (DB-aware vía T::DbWeight) + impl ()
- benchmarking.rs: benchmarks FRAME v2, VERIFICADOS por impl_benchmark_test_suite!
  (19 benchmarks ejecutan+pasan en los mocks — cargo test --features runtime-benchmarks)
- Config: `type WeightInfo` + swap de los `#[pallet::weight]`

Runtime:
- define_benchmarks! con los 5 pallets + runtime API Benchmark (inerte sin la feature)
- WeightInfo cableado a SubstrateWeight<Runtime> en cada Config
- RUNTIME_VERSION 8→9 (weights = consenso-relevante: fee + llenado de bloque;
  las firmas de los extrinsics NO cambian ⇒ TRANSACTION_VERSION intacto)

3 bugs latentes cerrados (territorio virgen — el runtime NUNCA se compiló con
runtime-benchmarks; las dimensiones nuevas cazan lo que no se había visto):
- pallet-grandpa/try-runtime mal ubicado en la feature runtime-benchmarks (copy-paste
  erróneo: features ortogonales; NUNCA activaba los benchmarks de grandpa)
- feature runtime-benchmarks incompleta → E0046 en OriginFeeAdapter (métodos
  benchmark-gated de OnChargeTransaction) + pallet-staking
  (StakingUnchecked::migrate_to_direct_staker); ahora lista TODOS los pallets como
  un runtime de producción Substrate
- pallet-revive/runtime-benchmarks omitido a propósito (fixtures RISC-V/PolkaVM
  indisponibles; ReviveApi deferred, no benchmarkeado)

emission: mock extraído del `mod tests` inline a `pub mod mock` (reuso del test-suite,
sin duplicar el scaffold; los 15 tests existentes + el benchmark verdes).

GATED (documentado en el §Estado de cada weights.rs): la generación de números
CANÓNICOS por CLI requiere el node sc-service o omni-bencher+WASM (ambos bloqueados
hace sesiones). Los weights interinos son DB-aware/DoS-safe y regenerables de forma
mecánica cuando aterrice el HW de referencia (Pi5/VPS) — benchmarking.rs es la fuente
de verdad de la FORMA.

Verificado: 5 test-suites de pallet verdes (con y sin runtime-benchmarks) + runtime
compila en ambos modos + workspace sin regresión + 40 tests de runtime (incl. v9).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

crates/origin-chain-governance/src/lib.rs

@@ -40,6 +40,14 @@
 
 pub use pallet::*;
 
+/// Weights canonical (INTERIM hand-derived DB-aware — ver `weights.rs` §Estado).
+pub mod weights;
+pub use weights::WeightInfo;
+
+/// Benchmarks canonical (FRAME v2) — solo bajo `runtime-benchmarks`.
+#[cfg(feature = "runtime-benchmarks")]
+mod benchmarking;
+
 /// Re-export canonical types desde origin-chain-types para consumers.
 pub use origin_chain_types::{ProposalId, Vote, VoteStance};
 
@@ -124,6 +132,8 @@ pub mod pallet {
     use parity_scale_codec::{Decode, DecodeWithMemTracking, Encode, MaxEncodedLen};
     use scale_info::TypeInfo;
     use sp_runtime::traits::{AccountIdConversion, SaturatedConversion};
+    // Trait de weights en scope para resolver `T::WeightInfo::<method>()`.
+    use crate::weights::WeightInfo;
 
     /// ProposalStatus canonical — proposal lifecycle stages canonical.
     #[derive(
@@ -246,6 +256,9 @@ pub mod pallet {
         /// tesorería no depende de una llave humana custodiable.
         #[pallet::constant]
         type TreasuryPalletId: Get<PalletId>;
+
+        /// Weight information canonical para los extrinsics de este pallet.
+        type WeightInfo: crate::weights::WeightInfo;
     }
 
     /// Pallet definition canonical.
@@ -623,7 +636,7 @@ pub mod pallet {
         /// 7-step canonical flow: ensure_signed + validate_stake + derive_id +
         /// collision_check + build + insert + emit.
         #[pallet::call_index(0)]
-        #[pallet::weight(Weight::from_parts(10_000, 0))]
+        #[pallet::weight(T::WeightInfo::submit_proposal())]
         pub fn submit_proposal(
             origin: OriginFor<T>,
             title_hash: [u8; 32],
@@ -683,7 +696,7 @@ pub mod pallet {
 
         /// CHN-4 5.4 canonical: `cast_vote` real dispatchable canonical.
         #[pallet::call_index(1)]
-        #[pallet::weight(Weight::from_parts(10_000, 0))]
+        #[pallet::weight(T::WeightInfo::cast_vote())]
         pub fn cast_vote(
             origin: OriginFor<T>,
             proposal_id: ProposalId,
@@ -746,7 +759,7 @@ pub mod pallet {
 
         /// CHN-4 canonical: `finalize_proposal` real dispatchable canonical.
         #[pallet::call_index(2)]
-        #[pallet::weight(Weight::from_parts(10_000, 0))]
+        #[pallet::weight(T::WeightInfo::finalize_proposal())]
         pub fn finalize_proposal(
             origin: OriginFor<T>,
             proposal_id: ProposalId,
@@ -799,7 +812,7 @@ pub mod pallet {
         /// 6-step canonical flow: ensure_root + size_check + no_duplicate + build +
         /// insert + emit.
         #[pallet::call_index(3)]
-        #[pallet::weight(Weight::from_parts(10_000, 0))]
+        #[pallet::weight(T::WeightInfo::add_council_member())]
         pub fn add_council_member(
             origin: OriginFor<T>,
             account: T::AccountId,
@@ -843,7 +856,7 @@ pub mod pallet {
         ///
         /// 5-step canonical flow: ensure_root + validate_exists + remove + decrement + emit.
         #[pallet::call_index(4)]
-        #[pallet::weight(Weight::from_parts(10_000, 0))]
+        #[pallet::weight(T::WeightInfo::remove_council_member())]
         pub fn remove_council_member(
             origin: OriginFor<T>,
             account: T::AccountId,
@@ -880,7 +893,7 @@ pub mod pallet {
         /// 7. Check threshold canonical: if count >= required → flip status to Rejected
         ///    + emit ProposalVetoed canonical; else emit CouncilVetoVoteCast canonical
         #[pallet::call_index(5)]
-        #[pallet::weight(Weight::from_parts(10_000, 0))]
+        #[pallet::weight(T::WeightInfo::veto_proposal())]
         pub fn veto_proposal(
             origin: OriginFor<T>,
             proposal_id: ProposalId,
@@ -964,7 +977,7 @@ pub mod pallet {
         /// Sentinel). Advisor canonical NO puede votar — humans-only vote canonical
         /// non-negotiable per CHN-4 + Inmutable #41.
         #[pallet::call_index(6)]
-        #[pallet::weight(Weight::from_parts(10_000, 0))]
+        #[pallet::weight(T::WeightInfo::mark_as_advisor())]
         pub fn mark_as_advisor(
             origin: OriginFor<T>,
             account: T::AccountId,
@@ -981,7 +994,7 @@ pub mod pallet {
 
         /// CHN-4 5.6 v0.0.34 canonical: `unmark_as_advisor` Phase 5.6 dispatchable.
         #[pallet::call_index(7)]
-        #[pallet::weight(Weight::from_parts(10_000, 0))]
+        #[pallet::weight(T::WeightInfo::unmark_as_advisor())]
         pub fn unmark_as_advisor(
             origin: OriginFor<T>,
             account: T::AccountId,
@@ -1012,7 +1025,7 @@ pub mod pallet {
         /// 6. Insert vote + increment total stake
         /// 7. Check threshold canonical 4/5: if >= → flip to Approved + emit CouncilVetoOverridden
         #[pallet::call_index(8)]
-        #[pallet::weight(Weight::from_parts(10_000, 0))]
+        #[pallet::weight(T::WeightInfo::override_council_veto())]
         pub fn override_council_veto(
             origin: OriginFor<T>,
             proposal_id: ProposalId,
@@ -1084,7 +1097,7 @@ pub mod pallet {
         /// canonical 5/7 council pre-approval flow (gather signatures via separate
         /// dispatchable y luego promote canonical).
         #[pallet::call_index(9)]
-        #[pallet::weight(Weight::from_parts(10_000, 0))]
+        #[pallet::weight(T::WeightInfo::submit_emergency_proposal())]
         pub fn submit_emergency_proposal(
             origin: OriginFor<T>,
             title_hash: [u8; 32],
@@ -1179,7 +1192,7 @@ pub mod pallet {
         /// 5. (Phase 5.9+ refinement canonical: transfer via pallet_balances integration)
         /// 6. Emit TreasuryDisbursed canonical
         #[pallet::call_index(10)]
-        #[pallet::weight(Weight::from_parts(10_000, 0))]
+        #[pallet::weight(T::WeightInfo::treasury_disbursement())]
         pub fn treasury_disbursement(
             origin: OriginFor<T>,
             proposal_id: ProposalId,
@@ -1233,7 +1246,7 @@ pub mod pallet {
         /// canonical (BM V2 250M OGC Foundation allocation). Real Phase 5.9+ refinement
         /// canonical: replace canonical via Genesis storage canonical config.
         #[pallet::call_index(11)]
-        #[pallet::weight(Weight::from_parts(10_000, 0))]
+        #[pallet::weight(T::WeightInfo::treasury_deposit())]
         pub fn treasury_deposit(origin: OriginFor<T>, amount: u128) -> DispatchResult {
             // FIX-6: donación REAL a la tesorería — el caller transfiere `amount`
             // de su propio balance a la cuenta-tesorería. Cualquiera puede fondear
@@ -1251,7 +1264,7 @@ pub mod pallet {
         /// reemplaza el gate 5/7 TAUTOLÓGICO anterior (que dejaba a UN solo miembro
         /// fast-trackear a 48h).
         #[pallet::call_index(12)]
-        #[pallet::weight(Weight::from_parts(10_000, 0))]
+        #[pallet::weight(T::WeightInfo::endorse_emergency_proposal())]
         pub fn endorse_emergency_proposal(
             origin: OriginFor<T>,
             title_hash: [u8; 32],