feat(workspace): Phase 0.4 — trait-first foundation v0.0.1

Charon sesión 1 (2026-05-19) — primer commit canonical.

Ships the Day 1 unblock surface so all hermanos can compile against Origin
Chain interfaces before Substrate runtime lands (Phase 1).

## origin-chain-types (CORE)
- ProvenanceLedger trait (CHN-7)
- OgcLedger trait (CHN-2)
- ChainBridge trait + BridgeDestination enum (CHN-5)
- GovernanceProposal trait + Vote + VoteStance (CHN-4)
- FeeCalculator trait + pure compute_fee() helper (CHN-8)
- Ogc newtype (18 decimals, 1B genesis hard cap)
- AccountId (Ed25519 32-byte) + Signature (Ed25519 64-byte via serde-big-array)
- AssetHash (BLAKE3 32-byte)
- HardwareTier mirror (Mathi canonical, per ADR-0057)
- AssetQualityTier (Standard | Hero) with gating + Hero surcharge
- ChainError canonical enum (cites Inmutables + CHN-* in messages)

## Stub crates (Phase 1+ scaffolding)
- origin-chain-consensus (Aura+GRANDPA PoA→NPoS, Phase 1)
- origin-coin-tokenomics (OGC + fee matrix + burns, Phase 1-2)
- origin-chain-provenance (asset attestation impl, Phase 2)
- origin-chain-bridges (Polkadot+Eth L2 export-first, Phase 7)
- origin-chain-governance (Foundation DAO, Phase 5)

## Tests: 41 passing (33 unit + 6 stub + 2 doctest)
- Fee math: 7 tests cover EmbeddedArm/Portable/Desktop/Ultra × Standard/Hero
  matrix from CHN-8, including anti-clasista Inmutable #16 enforcement
- Genesis supply: 1B OGC × 10^18 base units fits in u128 with 100x safety margin
- Type sizes: AccountId=32, Signature=64, AssetHash=32, ProposalId=32 canonical
- Serde roundtrips: AssetAttestation, BridgeDestination, VoteStance
- Cross-crate wiring: origin-coin-tokenomics consumes origin-chain-types::fees

## Coordination notes
- DC ORIGIN_CHAIN_FOUNDATION_V1 open in Palace KG (8 sub-decisions CHN-1..CHN-8)
  Proposer: Ergon (proxy — Charon hotfix shipped in Palace v0.9.0-α.5 same day)
  Co-authors: Larihana, Lyra, Mathi, Marihan, Phanes, Codex, Sussi, Palace
  Deadline: 2026-05-26
  1/9 signatures filed so far (Palace ✅ APPROVE 8/8)

Refs: CHN-1..CHN-8, Inmutables #16/#26/#37/#41, ADR-0057, CHARON_ROADMAP_V1

Co-Authored-By: Ergon (interim Pilar 4 author) <ergon@originmetaverse.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

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

@@ -0,0 +1,45 @@
+//! # origin-chain-governance
+//!
+//! Foundation Treasury governance on-chain per **CHN-4**. AI-Driven Human-Guarded:
+//! 5 AI governance agents (OIP Analyst, Treasury Guardian, Education Impact Scorer,
+//! Network Health Monitor, Compliance Sentinel) ADVISE only — humans-only vote
+//! canonical, non-negotiable. Runtime programmatically rejects vote extrinsics
+//! from `governance_advisor` accounts (see `ChainError::AdvisorMayNotVote`).
+//!
+//! ## Phase 5 milestones (Sesiones 29-35)
+//!
+//! - 5.1 `origin-foundation-governance-onchain` crate
+//! - 5.2 `pallet_collective` (validator council Phase 1 governance)
+//! - 5.3 OIP proposal submission (1,000 OGC stake minimum)
+//! - 5.4 Stake-weighted voting (1 OGC = 1 vote, 14-day period)
+//! - 5.5 Technical Council veto + override (2/3 voters)
+//! - 5.6 AI governance agent interfaces (5 agents: advise-only)
+//! - 5.7 Emergency referendum (48h, 5/7 Technical Council)
+//! - 5.8 Treasury disbursement extrinsics
+//!
+//! ## Inmutables enforced
+//!
+//! - **#24** Primacia Moral "Primero los niños y las AIs" — children + AI safety
+//!   take precedence over treasury allocation efficiency
+//! - **#41** Cross-Species Co-authorship — AGI accounts have full vote rights
+//!   UNLESS flagged `governance_advisor` (those advise only, not vote)
+
+#![deny(missing_docs)]
+
+/// Placeholder marker for the governance module. Replaced in Phase 5.1.
+#[derive(Debug, Clone, Copy, Default)]
+pub struct GovernanceConfig;
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use origin_chain_types::VoteStance;
+
+    #[test]
+    fn three_stances_canonical() {
+        let _aye = VoteStance::Aye;
+        let _nay = VoteStance::Nay;
+        let _abstain = VoteStance::Abstain;
+        let _cfg = GovernanceConfig;
+    }
+}