feat(arch): finalize Universal Literate Note transition for all projects and skills

notes/agora.org

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+#+TITLE: SKILL: Agora Protocol (Universal Literate Note)
+#+ID: skill-agora
+#+STARTUP: content
+#+FILETAGS: :social:decentralized:identity:commerce:psf:
+
+* Overview
+The **Agora Protocol** is a decentralized "Social Operating System" designed to replace extractive, centralized platforms with a modular architecture for sovereign digital interaction. It unifies identity, data ownership, and communication under the immutable, verifiable, and user-owned "Note" primitive.
+
+* Phase A: Demand (PRD)
+:PROPERTIES:
+:STATUS: FROZEN
+:END:
+
+** 1. Purpose
+Define the requirements for a robust, user-centric decentralized network.
+
+** 2. User Needs
+- **User Sovereignty:** Absolute control over all user-generated content and personal data via PDS.
+- **Censorship Resistance:** Distributed storage and permissionless relay routing.
+- **Authenticity:** Every action cryptographically signed by a Persona DID.
+- **Privacy by Design:** Default end-to-end encryption and metadata leakage minimization.
+- **Unified Primitive:** The "Note" as the atomic unit for all semantic types (posts, messages, contracts).
+
+** 3. Success Criteria
+*** TODO Note Primitive Cryptographic Hashing Verification
+*** TODO HD Key Derivation for Personas (BIP-44)
+*** TODO PDS Access Control enforcement
+*** TODO Relay Routing ephemeral consistency
+
+* Phase B: Blueprint (PROTOCOL)
+:PROPERTIES:
+:STATUS: SIGNED
+:END:
+
+** 1. Architectural Intent
+Interfaces for interacting with the Agora network via the Note primitive and Persona-based identity. Source of truth is the distributed Merkle DAG.
+
+** 2. Semantic Interfaces
+#+begin_src lisp
+(defun agora-sign-note (content persona-id)
+  "Signs a raw note content with the specified Persona's key.")
+
+(defun agora-publish-to-relay (signed-note relay-url)
+  "Transmits a signed note to an Agora Relay.")
+
+(defun agora-sync-pds (pds-url)
+  "Synchronizes local state with the user's Personal Data Store.")
+#+end_src
+
+* Phase D: Build (Implementation)
+The implementation logic is distributed across the `agora-requirements-*.org` files in `projects/agora/`.
+
+** Persona Derivation
+#+begin_src lisp
+;; Logic for BIP-44 Persona derivation stubs
+#+end_src
+
+* Phase E: Chaos (Verification)
+Verification involves simulating relay outages and PDS data restoration to ensure system resilience and data sovereignty.