final feature set

tasks/config-persistence/26-config-file-validation.md

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+# 26. Add Config File Validation and Migration
+
+meta:
+  id: config-persistence-26
+  feature: config-persistence
+  priority: P1
+  depends_on: [config-persistence-24, config-persistence-25]
+  tags: [validation, migration, data-integrity]
+
+objective:
+- Validate config file structure and data integrity
+- Migrate data from localStorage to file
+- Provide migration on first run
+- Handle config file corruption
+
+deliverables:
+- Config file validation function
+- Migration utility from localStorage
+- Error handling for corrupted files
+
+steps:
+1. Create config file schema validation
+2. Implement migration from localStorage to file
+3. Add config file backup before migration
+4. Handle corrupted JSON files
+5. Test migration scenarios
+
+tests:
+- Unit: Test validation function
+- Integration: Test migration from localStorage
+- Error: Test corrupted file handling
+
+acceptance_criteria:
+- Config files are validated before use
+- Migration from localStorage works seamlessly
+- Corrupted files are handled gracefully
+
+validation:
+- Start app with localStorage data
+- Verify migration to file
+- Corrupt file and verify handling
+- Test migration on app restart
+
+notes:
+- Validate Feed type structure
+- Validate theme structure
+- Create backup before migration
+- Log migration events
+- Provide error messages for corrupted files
+- Add config file versioning
+- Test with both new and old data formats