# DX003 — Developer Experience Dashboard

You are continuing the INVEETAIRE project.

DX001, DX002A and DX002B have been completed.

DO NOT redesign the existing architecture.

DO NOT modify synchronization logic.

DO NOT change any business modules.

Your task is ONLY to improve the Developer Experience (DX).

=========================================================
OBJECTIVE
=========================================================

Transform the current Developer Console into a production-grade Developer Dashboard.

This sprint focuses entirely on:

- Dashboard
- Monitoring
- Health
- Logs
- Navigation
- UX
- Status Visualization

No new synchronization features.

No architecture redesign.

=========================================================
FEATURE 1
DEVELOPER DASHBOARD
=========================================================

Create a dashboard page displaying developer information.

Show cards for:

• Application Version
• Environment
• PHP Version
• MySQL Version
• Supabase Status
• Mirror Status
• Total Database Tables
• Total Routes
• Total Modules
• Storage Usage
• Last Synchronization
• System Health

Use clear status colors:

Healthy

Warning

Error

=========================================================
FEATURE 2
SYSTEM HEALTH
=========================================================

Create a System Health page.

Display:

• Database Connection
• Supabase Connection
• Storage Permission
• Log Directory
• Cache Directory
• PHP Extensions
• PHP Memory Limit
• Upload Limit
• Execution Time

Every item should display:

Healthy

Warning

Error

Include recommendations when unhealthy.

=========================================================
FEATURE 3
APPLICATION INFORMATION
=========================================================

Create an About / Information page.

Display:

Project Name

INVEETAIRE

Version

Developer Console Version

Environment

PHP

Framework

Database

Supabase

Build Date

Developer Mode

Documentation Version

=========================================================
FEATURE 4
LOG CENTER
=========================================================

Create a centralized log page.

Display:

Synchronization Logs

Application Logs

PHP Errors (if available)

Recent Activity

Newest first.

Allow:

Refresh

Clear Log (confirmation required)

Download Log

=========================================================
FEATURE 5
DATABASE OVERVIEW
=========================================================

Improve Database page.

Display:

Total Tables

Total Columns

Total Foreign Keys

Database Size

Character Set

Collation

Storage Engine

Documentation Version

Last Documentation Generated

=========================================================
FEATURE 6
SIDEBAR
=========================================================

Improve Developer Sidebar.

Suggested navigation:

Dashboard

Database

Schema

Supabase

Synchronization

Inspector

Mapping

System Health

Logs

Information

The sidebar must only appear when:

DEVELOPER_MODE=true

Otherwise hide Developer Console completely.

=========================================================
FEATURE 7
STATUS BADGES
=========================================================

Use consistent badges.

Healthy

Warning

Error

Connected

Disconnected

Ready

Busy

Disabled

Developer Only

=========================================================
FEATURE 8
UI IMPROVEMENTS
=========================================================

Improve overall UI consistency.

Requirements:

• Responsive
• Clean cards
• Better spacing
• Empty states
• Loading states
• Icons
• Consistent typography

Do NOT introduce new UI frameworks.

Reuse existing project styling.

=========================================================
FEATURE 9
QUICK ACTIONS
=========================================================

Dashboard should provide quick actions:

Test Supabase Connection

Compare Schema

Verify Mirror

Open Sync Center

Open Database Inspector

Open Mapping Reference

=========================================================
FEATURE 10
DEVELOPER SUMMARY
=========================================================

Create a summary panel showing:

Application Status

Database Status

Mirror Status

Documentation Status

Synchronization Status

Overall System Health

=========================================================
FEATURE 11
PERFORMANCE
=========================================================

Avoid duplicated queries.

Reuse existing services.

Keep controllers thin.

Do not duplicate business logic.

=========================================================
FEATURE 12
SECURITY
=========================================================

Maintain existing security.

Never expose:

Service Role Key

Access Token

Environment secrets

Credentials

Developer Console must remain accessible only when:

DEVELOPER_MODE=true

=========================================================
VALIDATION
=========================================================

Before finishing:

✓ Run php -l on every modified PHP file

✓ Preserve DX001

✓ Preserve DX002A

✓ Preserve DX002B

✓ No architecture changes

✓ No synchronization changes

✓ Responsive layout

✓ Clean navigation

✓ Consistent UI

✓ No duplicated code

=========================================================
EXPECTED RESULT
=========================================================

After DX003 the Developer Console should feel like a professional administration dashboard.

The synchronization engine from DX002B should remain unchanged.

Only the developer experience should be significantly improved.

Finally:

1. Summarize every created and modified file.
2. Explain the new Developer Console structure.
3. Report PHP lint results for every modified PHP file.