feat(policy): DSPX-898 NDR database schema

service/policy/db/migrations/20250407000000_add_registered_resources.md

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+# Add Non Data Resources Table
+[ADR for Non Data Resource Support](https://github.com/opentdf/platform/issues/1915)
+```mermaid
+erDiagram
+    registered_resources ||--o{ registered_resource_values : "has"
+
+    registered_resources {
+        UUID id PK
+        VARCHAR name "NOT NULL, UNIQUE"
+        JSONB metadata
+        TIMESTAMP_WITH_TZ created_at "NOT NULL, DEFAULT CURRENT_TIMESTAMP"
+        TIMESTAMP_WITH_TZ updated_at "NOT NULL, DEFAULT CURRENT_TIMESTAMP"
+    }
+
+    registered_resource_values {
+        UUID id PK
+        UUID registered_resource_id FK "NOT NULL, REFERENCES registered_resources(id)"
+        VARCHAR value
+        JSONB metadata
+        TIMESTAMP_WITH_TZ created_at "NOT NULL, DEFAULT CURRENT_TIMESTAMP"
+        TIMESTAMP_WITH_TZ updated_at "NOT NULL, DEFAULT CURRENT_TIMESTAMP"
+        CONSTRAINT unique_resource_value "UNIQUE(registered_resource_id, value)"
+    }
+```

service/policy/db/migrations/20250407000000_add_registered_resources.sql

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+-- +goose Up
+-- +goose StatementBegin
+
+CREATE TABLE IF NOT EXISTS registered_resources (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  name VARCHAR NOT NULL UNIQUE,
+  metadata JSONB,
+  created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  updated_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+COMMENT ON TABLE registered_resources IS 'Table to store registered resources';
+COMMENT ON COLUMN registered_resources.id IS 'Primary key for the table';
+COMMENT ON COLUMN registered_resources.name IS 'Name for the registered resource';
+COMMENT ON COLUMN registered_resources.metadata IS 'Metadata for the registered resource (see protos for structure)';
+COMMENT ON COLUMN registered_resources.created_at IS 'Timestamp when the record was created';
+COMMENT ON COLUMN registered_resources.updated_at IS 'Timestamp when the record was last updated';
+
+CREATE TABLE IF NOT EXISTS registered_resource_values (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  registered_resource_id UUID NOT NULL REFERENCES registered_resources(id) ON DELETE CASCADE,
+  value VARCHAR NOT NULL,
+  metadata JSONB,
+  created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  updated_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  UNIQUE(registered_resource_id, value)
+);
+COMMENT ON TABLE registered_resource_values IS 'Table to store registered resource values';
+COMMENT ON COLUMN registered_resource_values.id IS 'Primary key for the table';
+COMMENT ON COLUMN registered_resource_values.registered_resource_id IS 'Foreign key to the registered_resources table';
+COMMENT ON COLUMN registered_resource_values.value IS 'Value for the registered resource value';
+COMMENT ON COLUMN registered_resource_values.metadata IS 'Metadata for the registered resource value (see protos for structure)';
+COMMENT ON COLUMN registered_resource_values.created_at IS 'Timestamp when the record was created';
+COMMENT ON COLUMN registered_resource_values.updated_at IS 'Timestamp when the record was last updated';
+
+CREATE TRIGGER registered_resources_updated_at
+  BEFORE UPDATE ON registered_resources
+  FOR EACH ROW
+  EXECUTE FUNCTION update_updated_at();
+
+CREATE TRIGGER registered_resource_values_updated_at
+  BEFORE UPDATE ON registered_resource_values
+  FOR EACH ROW
+  EXECUTE FUNCTION update_updated_at();
+
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+
+DROP TRIGGER IF EXISTS registered_resource_values_updated_at ON registered_resource_values;
+DROP TRIGGER IF EXISTS registered_resources_updated_at ON registered_resources;
+
+DROP TABLE IF EXISTS registered_resource_values;
+DROP TABLE IF EXISTS registered_resources;
+
+-- +goose StatementEnd