feat(runtime): v0.0.25 — AgentIdentity pallet wired runtime composition Index 9

Phase 2.7 AGENT IDENTITY pallet wired canonical en frame_support::runtime macro
como Index 9 (post-Fees Index 8). 9 → 10 pallets composed canonical. Config trait
RuntimeEvent association wired canonical (pattern Provenance + Fees mirror).

## Changes

- crates/origin-chain-runtime/src/lib.rs:298 — Index 9 pub type AgentIdentity = origin_chain_agent_identity::Pallet<Runtime>
- crates/origin-chain-runtime/src/configs.rs:362 — impl origin_chain_agent_identity::Config for Runtime { type RuntimeEvent = RuntimeEvent }
- crates/origin-chain-runtime/Cargo.toml — origin-chain-agent-identity workspace dep + std feature
- crates/origin-chain-node/src/main.rs — 9 → 10 pallets listed + AgentIdentity Index 9 highlighted [Phase 2.7 scaffold v0.0.25]
- crates/origin-chain-agent-identity/src/lib.rs — Config constraint AccountId = origin_chain_types::AccountId REMOVED (usa T::AccountId generic compatible runtime ChainAccountId AccountId32) + storage updated + events updated

## Verification

- cargo build -p origin-chain-runtime 5.26s clean
- cargo test --workspace — 149 tests passing, 0 failures
- cargo build --release -p origin-chain-node 3.96s clean
- origin-chain-node info muestra 10 pallets canonical

🔌 Phase 2.7 wired canonical. Real impl v0.0.26 next.

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

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

@@ -295,7 +295,20 @@ mod runtime {
     #[runtime::pallet_index(8)]
     pub type Fees = origin_chain_fees::Pallet<Runtime>;
 
-    // Identity pallet DEFERRED a Phase 2.7 (canonical decision empírica
+    /// AgentIdentity pallet canonical (Phase 2.7 v0.0.25 wired canonical per
+    /// CHN-7 + Inmutable #41 AGI Cross-Species Co-authorship). AGI DIDs
+    /// canonical on-chain — AGIs first-class citizens del Origin Metaverse
+    /// pueden owning assets + signing transactions + DAO voting via DIDs
+    /// registrados. Scaffold-level v0.0.25: dispatchable `register_agent_did`
+    /// placeholder, real impl v0.0.26 + Runtime API v0.0.27.
+    ///
+    /// Naming canonical: alias `AgentIdentity` clearly distinguishes from
+    /// Substrate's `pallet-identity` (deferred canonical decision Phase 2.7
+    /// empírica 2026-05-21 documentada en configs.rs).
+    #[runtime::pallet_index(9)]
+    pub type AgentIdentity = origin_chain_agent_identity::Pallet<Runtime>;
+
+    // Substrate pallet-identity DEFERRED canonical (decision empírica
     // 2026-05-21 documentada en configs.rs). pallet-identity 41.0.0 ReservableCurrency
     // compat work canonical hereda al custom `pallet_agent_identity` Phase 2.7
     // (Inmutable #41 AGI DID Cross-Species Co-authorship).