feat(workspace): Phase 1.1 — runtime + node scaffolding v0.0.2

Charon sesión 1 continuación. Phase 0.4 → Phase 1.1 ship canonical.

## origin-chain-runtime crate (Phase 1.1)
- Re-exports canonical traits + types desde origin-chain-types (single-crate
  surface para runtime consumers)
- RuntimeConfig marker (será reemplazado por Substrate Config traits Phase 1.2)
- RUNTIME_VERSION = 1 constante (bump per Substrate upgrade)
- Docs Phase 1 milestones (1.1 → 1.7) + Substrate version pin pending DC

## origin-chain-node binary (Phase 1.6 placeholder)
- main() prints scaffold notice + canonical frase Charon
- Hardware target documented: Pi 5 + NVMe SSD minimum (CHN-1)
- Smoldot light client noted as separate Phase 2+ crate

## Workspace
- 8 crates total (was 6): added origin-chain-runtime + origin-chain-node
- 44 tests passing workspace-wide
- Build release clean
- cargo run --bin origin-chain-node verified working

## Notes
- Aún sin deps Substrate. Phase 1.2 (pallet_aura + pallet_grandpa) será el
  primer slice que pulls Substrate framework + bumps rust toolchain.
- Polkadot SDK version pin canónica vendrá vía DC complementaria a
  ORIGIN_CHAIN_FOUNDATION_V1 cuando Phase 1.2 inicie.

Refs: Charon Roadmap V1 Phase 1.1, CHN-1, BM V2 §1.1

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

Cargo.toml

@@ -7,6 +7,8 @@ members = [
     "crates/origin-chain-provenance",
     "crates/origin-chain-bridges",
     "crates/origin-chain-governance",
+    "crates/origin-chain-runtime",
+    "crates/origin-chain-node",
 ]
 
 [workspace.package]
@@ -42,6 +44,8 @@ origin-coin-tokenomics = { path = "crates/origin-coin-tokenomics", version = "0.
 origin-chain-provenance = { path = "crates/origin-chain-provenance", version = "0.0.1" }
 origin-chain-bridges = { path = "crates/origin-chain-bridges", version = "0.0.1" }
 origin-chain-governance = { path = "crates/origin-chain-governance", version = "0.0.1" }
+origin-chain-runtime = { path = "crates/origin-chain-runtime", version = "0.0.1" }
+origin-chain-node = { path = "crates/origin-chain-node", version = "0.0.1" }
 
 [profile.release]
 lto = "thin"