feat(runtime): v0.0.21 — Fees pallet wired runtime composition Index 8

Phase 2.4 FEES pallet wired canonical en `frame_support::runtime` macro como
Index 8 (post-Provenance Index 7). 8 → 9 pallets composed canonical. Config
trait RuntimeEvent association wired canonical en configs.rs (pattern Provenance
Phase 2.1 mirror).

## Changes

- crates/origin-chain-runtime/src/lib.rs:285 — Index 8 pub type Fees = origin_chain_fees::Pallet<Runtime>
- crates/origin-chain-runtime/src/configs.rs:347 — impl origin_chain_fees::Config for Runtime { type RuntimeEvent = RuntimeEvent }
- crates/origin-chain-runtime/Cargo.toml — origin-chain-fees workspace dep + std feature
- Cargo.toml — origin-chain-fees workspace dependency
- crates/origin-chain-node/src/main.rs — 8 → 9 pallets listed + Fees Index 8 highlighted + Provenance status updated v0.0.15 → v0.0.17

## Verification

- cargo build -p origin-chain-runtime 13.63s clean
- cargo test --workspace — 123 tests passing, 0 failures
- cargo build --release -p origin-chain-node 4.39s clean
- origin-chain-node info muestra 9 pallets canonical

🔌 Phase 2.4 wired canonical. Real impl v0.0.22 next.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

crates/origin-chain-node/src/main.rs

@@ -191,7 +191,7 @@ fn print_info() {
     println!("Impl name:       {}", IMPL_NAME);
     println!("Runtime version: {}", RUNTIME_VERSION);
     println!();
-    println!("Pallets canonical (8):");
+    println!("Pallets canonical (9):");
     println!("  • Index 0  System              (frame_system foundational)");
     println!("  • Index 1  Timestamp           (pallet_timestamp block clock → Aura)");
     println!("  • Index 2  Balances            (pallet_balances OGC token CHN-2)");
@@ -199,7 +199,8 @@ fn print_info() {
     println!("  • Index 4  Aura                (pallet_aura PoA block production CHN-1)");
     println!("  • Index 5  Grandpa             (pallet_grandpa finality gadget CHN-1)");
     println!("  • Index 6  Session             (pallet_session 4h epoch rotation CHN-1)");
-    println!("  • Index 7  Provenance          (pallet_origin_provenance asset attestation CHN-7) [Phase 2.1 scaffold v0.0.15]");
+    println!("  • Index 7  Provenance          (pallet_origin_provenance asset attestation CHN-7) [Phase 2.1 COMPLETE v0.0.17]");
+    println!("  • Index 8  Fees                (pallet_origin_fees cross-pillar economy OCAFB-1..6) [Phase 2.4 scaffold v0.0.21]");
     println!();
     println!("Runtime APIs canonical (12):");
     println!("  • sp_api::Core                                  (version + execute_block)");