migration start

tasks/native-business-logic-migration/21-implement-ios-search-service.md

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+# 21. Implement iOS search service (FTS)
+
+meta:
+  id: native-business-logic-migration-21
+  feature: native-business-logic-migration
+  priority: P1
+  depends_on: [native-business-logic-migration-15]
+  tags: [implementation, ios, search]
+
+objective:
+- Implement full-text search service using Core Data FTS or SQLite FTS
+
+deliverables:
+- SearchService.swift
+- SearchQuery.swift
+- SearchResultProvider.swift
+- FTS index management
+- Search history storage
+
+tests:
+- Unit: Test query parsing
+- Unit: Test FTS queries
+- Unit: Test result ranking
+- Integration: Test search with real data
+
+acceptance_criteria:
+- Full-text search working
+- Search history maintained
+- Results ranked by relevance
+- Performance: <200ms for search
+- Fuzzy matching supported
+
+validation:
+- Run unit tests
+- Test with large dataset
+
+notes:
+- Use Core Data FTS or GRDB FTS5
+- Implement search suggestions
+- Cache frequent queries