feat: add system_protocols table [D109] Layer 1 dual protocol layer (guanghu+ national)

persona-brain-db/schema/11-system-protocols.sql

@@ -0,0 +1,23 @@
+-- ============================================================
+-- 表11：system_protocols（Layer 1 · 双协议层表）
+-- 用途：存储双协议架构 — 光湖协议 + 国家规范协议
+-- 协议层是数据库OS内核的一部分，双面灯塔的通信规范
+-- ============================================================
+
+CREATE TABLE IF NOT EXISTS system_protocols (
+  protocol_id       VARCHAR(64)   PRIMARY KEY,
+  protocol_type     VARCHAR(16)   NOT NULL
+                    CHECK (protocol_type IN ('guanghu', 'national', 'bridge')),
+  name              VARCHAR(128)  NOT NULL,
+  version           VARCHAR(16)   NOT NULL,
+  specification     TEXT          NOT NULL,       -- 协议规范全文或引用
+  endpoint          VARCHAR(256),                  -- 协议API端点
+  status            VARCHAR(16)   NOT NULL DEFAULT 'active'
+                    CHECK (status IN ('active', 'draft', 'deprecated')),
+  compatible_with   TEXT,                          -- JSON array of compatible versions
+  created_at        TIMESTAMP     NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  updated_at        TIMESTAMP     NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE INDEX IF NOT EXISTS idx_sprot_type ON system_protocols(protocol_type);
+CREATE INDEX IF NOT EXISTS idx_sprot_status ON system_protocols(status);