feat: implement Phase 5 Resource Registry & Heartbeat

migrations/018_create_resources.sql

@@ -0,0 +1,25 @@
+-- ============================================================================
+-- Migration 018: Create resources table (Resource Registry)
+-- ============================================================================
+-- Purpose:
+--   1. Allow Processors and Agents to register themselves.
+--   2. Track status and last heartbeat for monitoring.
+--   3. Support capabilities metadata for discovery.
+-- ============================================================================
+
+CREATE TABLE IF NOT EXISTS resources (
+    resource_id       VARCHAR(64) PRIMARY KEY,
+    resource_type     VARCHAR(20) NOT NULL,  -- 'processor', 'agent', 'service'
+    category          VARCHAR(50),           -- 'visual', 'speech', 'logic'
+    capabilities      JSONB DEFAULT '{}',
+    config            JSONB DEFAULT '{}',
+    metadata          JSONB DEFAULT '{}',
+    status            VARCHAR(20) DEFAULT 'offline', -- 'idle', 'busy', 'offline', 'error'
+    last_heartbeat    TIMESTAMPTZ,
+    created_at        TIMESTAMPTZ DEFAULT NOW()
+);
+
+CREATE INDEX idx_resources_type ON resources(resource_type);
+CREATE INDEX idx_resources_status ON resources(status);
+
+COMMENT ON TABLE resources IS 'Registry for Processors, Agents, and Services. Used for monitoring and discovery.';