fix: add migration for microdao is_public and update visibility scopes

migrations/029_add_microdao_visibility.sql

@@ -0,0 +1,52 @@
+-- Migration: Add visibility fields to MicroDAO and update Agent visibility
+-- Purpose: Support Task 029 (Orchestrator & Visibility Flow)
+-- Date: 2025-11-28
+
+-- ============================================================================
+-- MICRODAOS TABLE
+-- ============================================================================
+
+-- Add is_public flag
+ALTER TABLE microdaos
+    ADD COLUMN IF NOT EXISTS is_public boolean NOT NULL DEFAULT true;
+
+-- Create index
+CREATE INDEX IF NOT EXISTS idx_microdaos_is_public ON microdaos(is_public);
+
+
+-- ============================================================================
+-- AGENTS TABLE
+-- ============================================================================
+
+-- Update constraint for visibility_scope to support new values
+-- Old values: 'city', 'microdao', 'owner_only'
+-- New values: 'global', 'microdao', 'private'
+-- We will map: city -> global, owner_only -> private
+
+-- 1. Drop existing constraint
+ALTER TABLE agents
+    DROP CONSTRAINT IF EXISTS chk_visibility_scope;
+
+-- 2. Migrate data
+UPDATE agents
+SET visibility_scope = 'global'
+WHERE visibility_scope = 'city';
+
+UPDATE agents
+SET visibility_scope = 'private'
+WHERE visibility_scope = 'owner_only';
+
+-- 3. Add new constraint
+ALTER TABLE agents
+    ADD CONSTRAINT chk_visibility_scope 
+    CHECK (visibility_scope IN ('global', 'microdao', 'private'));
+
+-- 4. Ensure is_public is synced with visibility_scope
+UPDATE agents
+SET is_public = true
+WHERE visibility_scope = 'global';
+
+UPDATE agents
+SET is_public = false
+WHERE visibility_scope IN ('microdao', 'private');
+