Feature: Complete CloudKit API Coverage - Missing Operations & Types

[leogdion]

Description

This parent issue tracks the completion of several CloudKit Web Services operations and type definitions that are currently missing from MistKit's public API. While the OpenAPI-generated client code includes these operations, they lack public-facing wrappers and supporting Swift types.

Overview

MistKit's OpenAPI specification includes these operations in the generated code, but they need:

• Public API wrappers with proper Swift types
• Error handling and response processing
• Integration with existing MistKit patterns (logging, middleware, etc.)
• Documentation and examples
• Unit tests

Child Issues

Operations (API Wrappers Needed)

Issue	Operation	Description	Priority	Estimate
#30	assets/upload	Upload asset files to CloudKit	Medium-High	4-6 hours
#46	changes/database	Fetch database-level changes	Medium	3-4 hours
#44	zones/lookup	Fetch zones by identifier	Low-Medium	2-3 hours

Subtotal Operations: 9-13 hours

Type Definitions (Swift Types Needed)

Issue	Type	Description	Priority	Estimate
#25	System Fields	CloudKit system fields (created, modified, createdBy, modifiedBy)	Medium	3-4 hours
#26	Name Components	User name components (given, family, nickname, etc.)	Low-Medium	2-3 hours

Subtotal Types: 5-7 hours

Total Estimate

13-18 hours (approximately 2-3 working days)

Benefits

1. API Completeness: Exposes all CloudKit Web Services operations documented in the OpenAPI spec
2. User Experience: Developers can access full CloudKit functionality without workarounds
3. Type Safety: Proper Swift types for system fields and user data improve code quality
4. Consistency: All operations follow established MistKit patterns

Acceptance Criteria

• All 3 operations have public API wrappers in CloudKitService extensions
• System fields integrated into RecordInfo or separate SystemFields type
• Name component types defined with proper Codable conformance
• All new APIs follow async/await patterns
• Error handling consistent with existing MistKit error types
• Unit tests for all new APIs (minimum 80% coverage)
• Documentation comments for all public APIs
• Examples added to CLAUDE.md or separate documentation

Implementation Notes

Assets Upload (#30)

• Needs special handling for multipart file upload
• Consider Data, URL, and AsyncSequence<UInt8> input types
• Should support progress tracking for large files

Database Changes (#46)

• Similar to zone changes but at database level
• Returns change tokens for incremental sync
• Important for server-to-server sync scenarios

Zones Lookup (#44)

• Batch lookup of zones by identifier
• Complementary to existing listZones() operation

System Fields (#25)

• recordChangeTag, created, modified, deleted (for tombstones)
• Consider adding to RecordInfo vs. separate type

Name Components (#26)

• Used by user discovery APIs
• givenName, familyName, nickname, middleName, namePrefix, nameSuffix
• Should conform to Codable, Sendable

Related Issues

• Update README roadmap to reflect actual implementation status #182 - README roadmap update (mentions these as "implemented but not exposed")
• Part of v1.0.0-alpha.4 milestone completion

Priority Justification

Medium-High Priority - While these are not blocking core functionality, completing them:

1. Closes the gap between generated code and public API
2. Enables advanced CloudKit features (assets, database sync)
3. Provides full API coverage expected in a 1.0 release
4. Removes confusion about what's "implemented" vs. "exposed"