Changeset 0.22.2 (#96)

server/database/migrations/014_v0222_routing.sql

@@ -0,0 +1,31 @@
+-- Migration 014: v0.22.2 — Routing Policies
+-- Adds routing_policies table for rules-based provider routing.
+
+CREATE TABLE IF NOT EXISTS routing_policies (
+    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name            VARCHAR(200) NOT NULL,
+    scope           VARCHAR(10) NOT NULL DEFAULT 'global'
+                    CHECK (scope IN ('global', 'team')),
+    team_id         UUID REFERENCES teams(id) ON DELETE CASCADE,
+    priority        INTEGER NOT NULL DEFAULT 100,
+    policy_type     VARCHAR(30) NOT NULL
+                    CHECK (policy_type IN ('provider_prefer', 'team_route', 'cost_limit', 'model_alias')),
+    config          JSONB NOT NULL DEFAULT '{}'::jsonb,
+    is_active       BOOLEAN NOT NULL DEFAULT true,
+    created_at      TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at      TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_routing_policies_active
+    ON routing_policies(is_active, priority) WHERE is_active = true;
+CREATE INDEX IF NOT EXISTS idx_routing_policies_team
+    ON routing_policies(team_id) WHERE team_id IS NOT NULL;
+
+-- Trigger for updated_at
+CREATE TRIGGER routing_policies_updated_at
+    BEFORE UPDATE ON routing_policies
+    FOR EACH ROW EXECUTE FUNCTION update_updated_at();
+
+-- Add routing_decision column to usage_log for observability.
+ALTER TABLE usage_log
+    ADD COLUMN IF NOT EXISTS routing_decision JSONB;