Changeset 0.17.0 (#75)

server/database/migrations/002_v017_persona_kb.sql

@@ -0,0 +1,42 @@
+-- v0.17.0: Persona-KB Binding + Enterprise KB Mode
+--
+-- New: persona_knowledge_bases join table
+-- New: knowledge_bases.discoverable column
+-- New: kb_direct_access platform policy
+
+-- =========================================
+-- 1. Persona-KB Binding
+-- =========================================
+
+CREATE TABLE IF NOT EXISTS persona_knowledge_bases (
+    persona_id  UUID NOT NULL REFERENCES personas(id) ON DELETE CASCADE,
+    kb_id       UUID NOT NULL REFERENCES knowledge_bases(id) ON DELETE CASCADE,
+    auto_search BOOLEAN NOT NULL DEFAULT false,
+    added_at    TIMESTAMPTZ NOT NULL DEFAULT now(),
+    PRIMARY KEY (persona_id, kb_id)
+);
+
+CREATE INDEX IF NOT EXISTS idx_persona_kb_persona ON persona_knowledge_bases(persona_id);
+CREATE INDEX IF NOT EXISTS idx_persona_kb_kb      ON persona_knowledge_bases(kb_id);
+
+COMMENT ON TABLE persona_knowledge_bases IS 'Binds KBs to Personas — the Persona becomes a gateway to its KBs';
+COMMENT ON COLUMN persona_knowledge_bases.auto_search IS 'true = auto-prepend top-K results to context; false = kb_search tool only';
+
+-- =========================================
+-- 2. Enterprise KB Mode
+-- =========================================
+
+ALTER TABLE knowledge_bases
+    ADD COLUMN IF NOT EXISTS discoverable BOOLEAN NOT NULL DEFAULT true;
+
+COMMENT ON COLUMN knowledge_bases.discoverable IS 'false = hidden from user KB lists, only accessible through Persona binding';
+
+-- =========================================
+-- 3. Platform Policy
+-- =========================================
+
+INSERT INTO platform_policies (key, value) VALUES
+    ('kb_direct_access', 'true')
+ON CONFLICT (key) DO NOTHING;
+
+COMMENT ON COLUMN platform_policies.key IS 'kb_direct_access: when false, disables channel KB popup (strict enterprise mode)';