{"file": ".trellis/spec/backend/index.md", "reason": "Backend architecture overview and pre-development checklist for Servlet -> Service -> DAO -> MySQL work."}
{"file": ".trellis/spec/backend/directory-structure.md", "reason": "Required backend package and class placement conventions for new entity, DAO, service, and servlet files."}
{"file": ".trellis/spec/backend/database-guidelines.md", "reason": "Required MySQL schema, DAO CRUD, transaction, and data-integrity conventions for borrowing records."}
{"file": ".trellis/spec/backend/error-handling.md", "reason": "Required Servlet validation and ServiceResult-style failure handling for borrow/return/renew workflows."}
{"file": ".trellis/spec/backend/logging-guidelines.md", "reason": "Guidance for operation logging and exception tracing for circulation actions."}
{"file": ".trellis/spec/backend/quality-guidelines.md", "reason": "Layer boundary and review constraints for backend implementation."}
{"file": ".trellis/spec/frontend/index.md", "reason": "Frontend JSP/CSS conventions and pre-development checklist for new circulation screens."}
{"file": ".trellis/spec/frontend/directory-structure.md", "reason": "Required JSP and static asset placement conventions."}
{"file": ".trellis/spec/frontend/component-guidelines.md", "reason": "Existing JSP fragments, forms, tables, and reusable UI conventions."}
{"file": ".trellis/spec/frontend/state-management.md", "reason": "Server-rendered request/session/form state conventions for validation messages and filters."}
{"file": ".trellis/spec/frontend/type-safety.md", "reason": "JSP/Servlet validation and JavaBean display contracts."}
{"file": ".trellis/spec/frontend/quality-guidelines.md", "reason": "UI quality checks for JSP/CSS changes."}
{"file": ".trellis/spec/guides/cross-layer-thinking-guide.md", "reason": "Borrowing spans schema, DAO, service, servlet, JSP, and permissions."}
{"file": ".trellis/spec/guides/code-reuse-thinking-guide.md", "reason": "Feature should reuse existing patterns for search criteria, ServiceResult, DAOs, forms, and JSP tables."}
{"file": ".trellis/tasks/archive/2026-04/00-bootstrap-guidelines/research/project-requirements.md", "reason": "Original project requirements include borrowing/return management in the overall library system scope."}