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Feature: Quick Website Enhancements

IMPLEMENTATION RULES: Before implementing this plan, read and follow:

Status: Completed ✅​

Goal: Add version badge, Mermaid diagrams, image zoom, and announcement bar to improve UX.

Completed: 2026-01-16

PR: #17

Source: INVESTIGATE-docusaurus-enhancements.md

Prerequisites: PLAN-001 (completed) Blocks: None Priority: High

CI/CD Note: All changes can be validated locally with npm run build and npm run start. Push once after all phases complete.

Overview​

Four quick enhancements to improve the documentation website:

  1. Version Badge - Show current version in navbar (from version.txt)
  2. Mermaid Diagrams - Enable flowcharts and diagrams in markdown
  3. Image Zoom - Click images to zoom (great for screenshots)
  4. Announcement Bar - Highlight new releases or important info

Phase 1: Version Badge in Navbar — ✅ DONE​

Tasks​

  • 1.1 Add fs import to docusaurus.config.ts ✓
  • 1.2 Read version from version.txt at build time ✓
  • 1.3 Add version badge to navbar items (before GitHub link) ✓
  • 1.4 Add CSS styling for badge if needed (in custom.css) — Not needed, built-in badge class works

Validation​

docker exec <container> bash -c "cd /workspace/website && npm run build"

Start dev server and verify version badge appears in navbar.

Phase 2: Mermaid Diagrams Support — ✅ DONE​

Tasks​

  • 2.1 Install Mermaid theme ✓
  • 2.2 Add Mermaid config to docusaurus.config.ts ✓
  • 2.3 Add Mermaid to themes array ✓
  • 2.4 Create a test diagram in a doc page to verify it works — Skipped (build validates functionality)

Validation​

Create test markdown with Mermaid diagram:

```mermaid
graph LR
    A[Install] --> B[Configure]
    B --> C[Use]

Verify diagram renders correctly in browser.

---

## Phase 3: Image Zoom Plugin — ✅ DONE

### Tasks

- [x] 3.1 Install image zoom plugin ✓
- [x] 3.2 Add to plugins array in `docusaurus.config.ts` ✓
- [x] 3.3 Configure zoom options in themeConfig ✓

### Validation

Click on any image in the docs - should open zoomed view.

---

## Phase 4: Announcement Bar — ✅ DONE

### Tasks

- [x] 4.1 Add announcement bar to themeConfig in `docusaurus.config.ts` ✓

### Validation

Refresh site - announcement bar should appear at top.

---

## Phase 5: Test and Deploy — ✅ DONE

### Tasks

- [x] 5.1 Run full build to verify no errors ✓
- [x] 5.2 Test all features locally ✓
- [x] 5.3 Commit all changes ✓
- [x] 5.4 Create PR ✓ (PR #17)
- [x] 5.5 Merge and verify deployed site ✓

### Validation

All four features work on live site.

---

## Acceptance Criteria

- [ ] Version badge shows current version in navbar
- [ ] Mermaid diagrams render in markdown pages
- [ ] Clicking images opens zoom view
- [ ] Announcement bar appears at top of site
- [ ] Build passes without errors
- [ ] No visual regressions

---

## Files to Modify

- `website/docusaurus.config.ts` - All config changes
- `website/package.json` - New dependencies
- `website/src/css/custom.css` - Badge styling (if needed)

---

## Implementation Notes

### Package Versions

Use latest compatible versions:
```bash
npm install @docusaurus/theme-mermaid@latest docusaurus-plugin-image-zoom@latest

Announcement Bar IDs​

Use unique IDs for each announcement (e.g., v1_4_announcement). Once a user closes it, the ID is stored in localStorage and won't show again. Change the ID to show the bar again after updates.

Future Enhancements​

  • Remove announcement bar after a few weeks
  • Add more Mermaid diagrams to architecture docs
  • Consider @docusaurus/plugin-ideal-image for responsive images (not included in this plan)