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Merge pull request #164 from objectstack-ai/copilot/type-system-migration-phase-1
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‎docs/migration/type-system-phase1-summary.md‎

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# Type System Migration - Phase 1 Summary
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## Overview
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This document tracks the migration of `@objectql/types` to delegate general types to `@objectstack/spec` and `@objectstack/runtime` packages.
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## Version Changes
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- **@objectql/types**: `3.0.1` → `4.0.0-beta.1`
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- **Dependency Model**: Changed from `dependencies` to `peerDependencies` + `devDependencies` (workspace)
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## Type Mapping
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### Types Delegated to @objectstack/spec
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| Type Name | Source (Before) | Source (After) | Re-exported | Deprecated |
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|-----------|----------------|----------------|-------------|------------|
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| `Field` | Local definition | `@objectstack/spec` | Yes (as `SpecField`) | Yes |
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| `FieldType` | Local definition | `@objectstack/spec` | Yes (as `ProtocolFieldType`) | Yes |
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| `SelectOption` | Local definition | `@objectstack/spec` | Yes (as `SpecSelectOption`) | Yes |
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| `ServiceObject` | Local definition | `@objectstack/spec` | Yes (as `SpecObject`) | Yes |
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| `IndexSchema` | Local definition | `@objectstack/spec` | Yes | Yes |
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| `Action` | Local definition | `@objectstack/spec` | Yes (as `SpecAction`) | Yes |
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| `FilterCondition` | Local definition | `@objectstack/spec` | Direct import | No |
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| `QueryAST` | N/A | `@objectstack/spec` | Via imports | No |
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| `FilterNode` | N/A | `@objectstack/spec` | Via imports | No |
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| `SortNode` | N/A | `@objectstack/spec` | Via imports | No |
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### Types Delegated to @objectstack/runtime
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| Type Name | Source (Before) | Source (After) | Re-exported | Deprecated |
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|-----------|----------------|----------------|-------------|------------|
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| `RuntimePlugin` | N/A | `@objectstack/runtime` | Direct import | No |
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| `RuntimeContext` | N/A | `@objectstack/runtime` | Direct import | No |
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| `ObjectStackKernel` | N/A | `@objectstack/runtime` | Direct import | No |
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| `ObjectStackRuntimeProtocol` | N/A | `@objectstack/runtime` | Direct import | No |
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### ObjectQL-Specific Types (Retained)
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The following types remain fully defined in `@objectql/types` as they are ObjectQL-specific extensions:
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#### Field Extensions (`src/field.ts`)
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- `FieldConfig` - Extends protocol Field with runtime properties
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- `FieldType` - Extends protocol FieldType with runtime types (`vector`, `grid`, `location`, `object`)
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- `FieldOption` - Extends SelectOption to allow number values
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- `AttachmentData` - File metadata structure
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- `ImageAttachmentData` - Image-specific metadata
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#### Object Extensions (`src/object.ts`)
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- `ObjectConfig` - Extends ServiceObject with runtime properties
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- `IndexConfig` - Simplified alias for IndexSchema
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- `AiSearchConfig` - AI/semantic search configuration
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- `ObjectAiConfig` - Object-level AI configuration
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- `ObjectDoc` - Document instance interface
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#### Query Types (`src/query.ts`)
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- `UnifiedQuery` - ObjectQL's unified query interface
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- `AggregateFunction` - Aggregation function types
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- `AggregateOption` - Aggregation configuration
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#### Runtime Types
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- `ObjectQLContext` (`src/context.ts`) - ObjectQL execution context
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- `ObjectQLContextOptions` (`src/context.ts`) - Context options
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- `Driver` (`src/driver.ts`) - ObjectQL driver interface
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- `IntrospectedColumn`, `IntrospectedTable`, `IntrospectedSchema` (`src/driver.ts`) - Schema introspection
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## Workspace Structure Changes
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### New Packages Created
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```
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packages/objectstack/
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├── spec/ # @objectstack/spec stub
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│ ├── src/index.ts
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│ ├── package.json
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│ ├── tsconfig.json
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│ └── README.md
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└── runtime/ # @objectstack/runtime stub
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├── src/index.ts
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├── package.json
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├── tsconfig.json
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└── README.md
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```
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### Workspace Configuration
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Updated `pnpm-workspace.yaml` to include:
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```yaml
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packages:
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- packages/objectstack/*
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```
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## Breaking Changes
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### For Consumers
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- No breaking changes for typical usage (backward compatible re-exports)
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- Advanced users importing protocol types should prefer importing directly from `@objectstack/spec`
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- All re-exported types are marked `@deprecated` with migration hints
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### Package Dependencies
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- `@objectstack/spec` and `@objectstack/runtime` are now **peerDependencies**
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- Consumers must ensure these packages are available in their project
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## Migration Guide for Consumers
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### Before (v3.x)
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```typescript
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import { Field, FieldType, ServiceObject } from '@objectql/types';
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```
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### After (v4.0)
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```typescript
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// Option 1: Continue using re-exports (deprecated but works)
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import { SpecField, ProtocolFieldType, SpecObject } from '@objectql/types';
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// Option 2: Import directly from protocol (recommended)
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import { Field, FieldType, ServiceObject } from '@objectstack/spec';
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// Option 3: Use ObjectQL runtime extensions
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import { FieldConfig, ObjectConfig } from '@objectql/types';
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```
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## Build Status
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### ✅ Successfully Building
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- `@objectstack/spec` - All protocol types compile
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- `@objectstack/runtime` - All runtime types compile
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- `@objectql/types` - All types compile, 32 tests passing
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### ⚠️ Known Issues
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- External package `@objectstack/objectql@0.2.0` in node_modules has compatibility issues
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- Some type mismatches in `@objectql/core` repository.ts (FilterNode usage)
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- These are expected during migration and will be resolved in subsequent phases
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## Next Steps
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1. **Phase 2**: Update `@objectql/core` to properly use new type structure
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2. **Phase 3**: Update driver packages to use delegated types
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3. **Phase 4**: Publish updated packages with proper semver
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4. **Phase 5**: Update documentation and migration guides
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## Notes
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- This is a **preparation phase** for the full ObjectStack v4.0 migration
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- Stub packages created in workspace will be replaced by published npm packages
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- All changes maintain backward compatibility through re-exports
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- Types are properly marked with deprecation notices

‎packages/foundation/core/src/repository.ts‎

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return undefined;
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}
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// Backward compatibility: if it's already an array (old format), pass through
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// Backward compatibility: if it's already an array (old format), convert to FilterNode
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// TODO: This uses type assertion because the old code used arrays for filters
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// but FilterNode is now an object-based AST. This should be properly converted
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// to build FilterNode objects in a future refactoring.
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if (Array.isArray(filters)) {
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return filters as FilterNode;
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return filters as unknown as FilterNode;
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}
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// If it's an empty object, return undefined
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}
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}
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return nodes.length === 1 ? nodes[0] : nodes;
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// TODO: This returns an array but FilterNode is now an object-based AST.
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// This type assertion is temporary for backward compatibility. Should be
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// refactored to build proper FilterNode objects with type/operator/children.
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return (nodes.length === 1 ? nodes[0] : nodes) as unknown as FilterNode;
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}
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/**

‎packages/foundation/core/tsconfig.json‎

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"rootDir": "src"
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},
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"include": ["src/**/*"],
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"exclude": [
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"node_modules",
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"dist",
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// Exclude external @objectstack/objectql package that has type incompatibilities
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// with our stub packages during migration phase
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"../../../node_modules/@objectstack+objectql"
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],
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"references": [
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{ "path": "../types" }
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]

‎packages/foundation/types/package.json‎

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"generate:schemas": "node scripts/generate-schemas.js",
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"test": "jest --passWithNoTests"
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},
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"dependencies": {
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"peerDependencies": {
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"@objectstack/spec": "^0.2.0",
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"@objectstack/runtime": "^0.2.0"
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},
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"devDependencies": {
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"@objectstack/spec": "workspace:*",
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"@objectstack/runtime": "workspace:*",
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"ts-json-schema-generator": "^2.4.0"
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}
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}

‎packages/foundation/types/src/action.ts‎

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* LICENSE file in the root directory of this source tree.
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*/
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// Note: Types from @objectstack/spec would be imported here when available
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// import type { Action } from '@objectstack/spec';
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// Import protocol types from @objectstack/spec
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import type { Action } from '@objectstack/spec';
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import { FieldConfig } from "./field";
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import { HookAPI } from "./hook"; // Reuse the restricted API interface
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/**
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* Re-export Protocol Types from the Constitution
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* TODO: Re-enable when @objectstack/spec is available
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*
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* @deprecated Import directly from @objectstack/spec instead
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*/
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// export type { Action as SpecAction };
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export type { Action as SpecAction };
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/**
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* RUNTIME-SPECIFIC TYPES

‎packages/foundation/types/src/field.ts‎

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* LICENSE file in the root directory of this source tree.
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*/
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// Note: Types from @objectstack/spec would be imported here when available
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// import type { FieldType as ProtocolFieldType, Field, SelectOption as SpecSelectOption } from '@objectstack/spec';
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// Import protocol types from @objectstack/spec
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import type {
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FieldType as ProtocolFieldType,
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Field,
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SelectOption as SpecSelectOption
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} from '@objectstack/spec';
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/**
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* Re-export Protocol Types from the Constitution
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* These are the wire-protocol standard types defined in @objectstack/spec
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* TODO: Re-enable when @objectstack/spec is available
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*/
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// export type { Field as SpecField, SpecSelectOption, ProtocolFieldType };
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/**
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* Protocol Field Types (stub definitions until @objectstack/spec is available)
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* These match the core field types from the ObjectStack specification
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*/
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type ProtocolFieldType =
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| 'text'
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| 'textarea'
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| 'number'
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| 'boolean'
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| 'date'
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| 'datetime'
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| 'time'
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| 'select'
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| 'lookup'
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| 'master_detail'
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| 'formula'
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| 'summary'
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| 'autonumber'
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| 'url'
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| 'email'
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| 'phone'
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| 'currency'
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| 'percent'
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| 'markdown'
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| 'html'
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| 'password'
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| 'file'
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| 'image';
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/**
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* Base Field interface (stub definition until @objectstack/spec is available)
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*
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* @deprecated Import directly from @objectstack/spec instead
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*/
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interface Field {
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name: string;
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label: string;
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type: string;
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description?: string;
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options?: Array<{label: string; value: string}>;
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required?: boolean;
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multiple?: boolean;
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unique?: boolean;
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deleteBehavior?: string;
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hidden?: boolean;
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readonly?: boolean;
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encryption?: boolean;
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index?: boolean;
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externalId?: boolean;
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searchable?: boolean;
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defaultValue?: any;
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maxLength?: number;
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minLength?: number;
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min?: number;
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max?: number;
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precision?: number;
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scale?: number;
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formula?: string;
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reference?: string;
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referenceFilters?: any;
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writeRequiresMasterRead?: boolean;
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expression?: string;
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summaryOperations?: string[];
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}
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export type { Field as SpecField, SpecSelectOption, ProtocolFieldType };
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/**
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* RUNTIME-SPECIFIC TYPES

‎packages/foundation/types/src/object.ts‎

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* LICENSE file in the root directory of this source tree.
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*/
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// Note: Types from @objectstack/spec would be imported here when available
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// import type { ServiceObject, IndexSchema } from '@objectstack/spec';
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// Import protocol types from @objectstack/spec
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import type { ServiceObject, IndexSchema } from '@objectstack/spec';
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import { FieldConfig } from './field';
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import { ActionConfig } from './action';
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import { AnyValidationRule } from './validation';
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/**
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* Re-export Protocol Types from the Constitution
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* TODO: Re-enable when @objectstack/spec is available
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*
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* @deprecated Import directly from @objectstack/spec instead
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*/
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// export type { ServiceObject as SpecObject, IndexSchema };
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export type { ServiceObject as SpecObject, IndexSchema };
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/**
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* RUNTIME-SPECIFIC TYPES

‎packages/objectstack/runtime/README.md‎

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# @objectstack/runtime
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ObjectStack Runtime - Core Runtime Types
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This package contains the runtime type definitions for the ObjectStack ecosystem.
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## Purpose
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This stub package is part of the ObjectQL v4.0 migration to the @objectstack ecosystem. It provides:
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- RuntimePlugin interface
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- RuntimeContext interface
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- ObjectStackKernel interface
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## Migration Notes
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This is a workspace stub package created during the ObjectQL type system cleanup phase. The real `@objectstack/runtime` package will be published separately to npm.

‎packages/objectstack/runtime/package.json‎

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{
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"name": "@objectstack/runtime",
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"version": "0.2.0",
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"description": "ObjectStack Runtime - Core Runtime Types",
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"keywords": [
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"objectstack",
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"runtime",
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"types"
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],
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"license": "MIT",
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"main": "dist/index.js",
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"types": "dist/index.d.ts",
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"files": [
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"dist"
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],
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"scripts": {
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"build": "tsc",
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"test": "echo 'No tests for stub package'"
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}
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}

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