# Journal - Zzzz (Part 1)

> AI development session journal
> Started: 2026-04-27

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## Session 1: Bootstrap Guidelines

**Date**: 2026-04-27
**Task**: Bootstrap Guidelines

### Summary

Populated Trellis backend/frontend specs for the JSP + Servlet + MySQL + Tomcat library management system and archived the bootstrap task.

### Main Changes

# Project Requirements From Developer

## Source

Captured on 2026-04-27 during the Trellis bootstrap-guidelines task from
developer-provided project facts.

## Architecture And Stack

- The system uses B/S architecture with a typical layered design.
- The application stack is JSP + Servlet, MySQL, Tomcat, developed in IDEA.
- The layers are presentation, controller, business/service, DAO, and data.

## Data Layer

MySQL is the data layer and stores:

- Book information.
- Book category information.
- Reader information.
- Borrowing records.
- Administrator information.
- Role and permission information.
- System logs.

Core entity tables should include book information, book categories, reader
information, borrowing records, administrators, role permissions, and system
logs. Use primary keys and foreign keys to preserve data integrity.

## DAO Layer

The data access layer uses DAO classes to perform database CRUD. DAOs should own
SQL/database access concerns and should not contain presentation or business
workflow logic.

## Business And Service Layer

The service layer handles:

- Book warehousing/intake.
- Borrowing and returning.
- Inventory status updates.
- Overdue statistics.
- Permission checks.

## Controller Layer

Servlet controllers handle request dispatch, parameter validation, and result
return. Controllers should coordinate request/response flow and call services
for business behavior.

## Presentation Layer

JSP/CSS pages handle page display and user interaction.

The frontend approach is image-first: UI should be designed or generated as
images first, then JSP/CSS pages should restore and implement the image
faithfully.

## Core Modules

- Login and permission management for administrator, librarian, and reader
  roles.
- Book information management for create, update, delete, category
  maintenance, and inventory status.
- Reader information management for profiles, borrowing eligibility, and
  contact information.
- Borrowing and return management for borrow, return, renew, overdue handling,
  and automatic collection status updates.
- Book search and statistics for combined search by title, author, category,
  and ID, plus borrowing rankings, inventory reports, and overdue reports.
- System maintenance and logs for key operation logs, data backup support, and
  exception tracing.


### Git Commits

(No commits - planning session)

### Testing

- [OK] (Add test results)

### Status

[OK] **Completed**

### Next Steps

- None - task complete


## Session 2: Initial Java Web scaffold and login skeleton

**Date**: 2026-04-27
**Task**: Initial Java Web scaffold and login skeleton
**Branch**: `master`

### Summary

Built the initial JSP Servlet MySQL project scaffold, login and permission skeleton, schema guidance, and updated Trellis specs after verification.

### Main Changes

(Add details)

### Git Commits

| Hash | Message |
|------|---------|
| `a297d7a` | (see git log) |

### Testing

- [OK] (Add test results)

### Status

[OK] **Completed**

### Next Steps

- None - task complete


## Session 3: Book catalog and management slice

**Date**: 2026-04-27
**Task**: Book catalog and management slice
**Branch**: `master`

### Summary

Added book catalog search, basic book management, schema updates, JSP pages, service checks, and Trellis spec updates.

### Main Changes

(Add details)

### Git Commits

| Hash | Message |
|------|---------|
| `763830f` | (see git log) |

### Testing

- [OK] (Add test results)

### Status

[OK] **Completed**

### Next Steps

- None - task complete


## Session 4: Reader information management slice

**Date**: 2026-04-27
**Task**: Reader information management slice
**Branch**: `master`

### Summary

Implemented and verified reader profile management with reader schema, DAO/service/Servlet/JSP UI, MANAGE_READERS authorization, service checks, and database spec updates. Maven package remains unavailable in this environment because mvn is not installed.

### Main Changes

(Add details)

### Git Commits

| Hash | Message |
|------|---------|
| `eff118e` | (see git log) |

### Testing

- [OK] (Add test results)

### Status

[OK] **Completed**

### Next Steps

- None - task complete


## Session 5: Borrowing circulation management

**Date**: 2026-04-27
**Task**: Borrowing circulation management
**Branch**: `master`

### Summary

Implemented borrowing circulation management: borrow, return, renew, overdue filtering, reader loan history, schema/contracts, permission hardening, and service checks.

### Main Changes

(Add details)

### Git Commits

| Hash | Message |
|------|---------|
| `7502890` | (see git log) |

### Testing

- [OK] (Add test results)

### Status

[OK] **Completed**

### Next Steps

- None - task complete


## Session 6: 完成报表中心

**Date**: 2026-04-27
**Task**: 完成报表中心
**Branch**: `master`

### Summary

Implemented the staff report center with inventory, borrowing, overdue, and popular-book summaries; added protected /reports route, JSP navigation, service checks, and report code-spec updates.

### Main Changes

(Add details)

### Git Commits

| Hash | Message |
|------|---------|
| `f9a9c630c29e1aebd623a640411c0124c7c0b0db` | (see git log) |

### Testing

- [OK] (Add test results)

### Status

[OK] **Completed**

### Next Steps

- None - task complete


## Session 7: Admin user management and system logs

**Date**: 2026-04-27
**Task**: Admin user management and system logs
**Branch**: `master`

### Summary

Implemented administrator user/account management, read-only system-log viewing, Maven packaging verification, and Maven target gitignore coverage.

### Main Changes

(Add details)

### Git Commits

| Hash | Message |
|------|---------|
| `934ea1f` | (see git log) |
| `f99002e` | (see git log) |

### Testing

- [OK] (Add test results)

### Status

[OK] **Completed**

### Next Steps

- None - task complete


## Session 8: Core Function Gap Check

**Date**: 2026-04-27
**Task**: Core Function Gap Check
**Branch**: `master`

### Summary

Checked core library-management functionality, completed book category maintenance, documented Maven workspace path, and verified package build.

### Main Changes

(Add details)

### Git Commits

| Hash | Message |
|------|---------|
| `d917a62` | (see git log) |

### Testing

- [OK] (Add test results)

### Status

[OK] **Completed**

### Next Steps

- None - task complete


## Session 9: Frontend Chinese UI

**Date**: 2026-04-28
**Task**: Frontend Chinese UI
**Branch**: `master`

### Summary

Localized JSP frontend UI and displayed backend messages to Simplified Chinese, updated display helpers/tests, recorded the Chinese UI copy convention in Trellis specs, and verified the Maven build plus service checks.

### Main Changes

(Add details)

### Git Commits

| Hash | Message |
|------|---------|
| `ff044e6` | (see git log) |

### Testing

- [OK] (Add test results)

### Status

[OK] **Completed**

### Next Steps

- None - task complete


## Session 10: 中文详细 README

**Date**: 2026-04-28
**Task**: 中文详细 README
**Branch**: `master`

### Summary

将 README 重写为简体中文详细文档，覆盖项目概述、功能模块、技术栈、目录结构、数据库初始化、本地配置、构建部署、路由、角色权限、测试检查和常见问题；trellis-check 已通过 Maven 测试、自检类和打包验证。

### Main Changes

(Add details)

### Git Commits

| Hash | Message |
|------|---------|
| `2d4a7e2` | (see git log) |

### Testing

- [OK] (Add test results)

### Status

[OK] **Completed**

### Next Steps

- None - task complete


## Session 11: Frontend Reference Redesign

**Date**: 2026-04-28
**Task**: Frontend Reference Redesign
**Branch**: `master`

### Summary

Refactored the JSP frontend to match the provided library dashboard reference image, including shared sidebar/topbar layout, dashboard panels, role-aware visibility fixes, Maven verification, and spec context updates.

### Main Changes

(Add details)

### Git Commits

| Hash | Message |
|------|---------|
| `89b6dd1` | (see git log) |

### Testing

- [OK] (Add test results)

### Status

[OK] **Completed**

### Next Steps

- None - task complete


## Session 12: Windows login diagnostics and demo credentials

**Date**: 2026-04-28
**Task**: Windows login diagnostics and demo credentials
**Branch**: `master`

### Summary

Added safe login/database diagnostic logs, documented local demo credentials, updated seed hashes, verified Maven build.

### Main Changes

(Add details)

### Git Commits

| Hash | Message |
|------|---------|
| `781ce46` | (see git log) |

### Testing

- [OK] (Add test results)

### Status

[OK] **Completed**

### Next Steps

- None - task complete


## Session 13: Frontend workbench display fix

**Date**: 2026-04-28
**Task**: Frontend workbench display fix
**Branch**: `master`

### Summary

Replaced hard-coded dashboard data with service-backed workbench data, simplified sidebar/workbench UI, kept sidebar persistent, updated frontend specs, and verified with Maven/service checks.

### Main Changes

(Add details)

### Git Commits

| Hash | Message |
|------|---------|
| `0a386b8` | (see git log) |

### Testing

- [OK] (Add test results)

### Status

[OK] **Completed**

### Next Steps

- None - task complete


## Session 14: Sidebar layout and management UX cleanup

**Date**: 2026-04-28
**Task**: Sidebar layout and management UX cleanup
**Branch**: `master`

### Summary

Fixed sidebar active-state routing and navigation order, corrected management page hero layouts, removed dashboard technical copy, clarified reader profile versus user account UI, updated frontend navigation spec, and verified Maven package build.

### Main Changes

(Add details)

### Git Commits

| Hash | Message |
|------|---------|
| `d0e71f2` | (see git log) |

### Testing

- [OK] (Add test results)

### Status

[OK] **Completed**

### Next Steps

- None - task complete