docs: add Playwright screenshots to visualizer lab instructions

[gamaware]

Add 7 screenshots taken from live EC2 deployment via Playwright to LAB-VISUALIZER.md task instructions.

Summary by CodeRabbit

• Documentation
  • Enhanced lab instructions with visual screenshots for Tasks 1–4 to illustrate key UI states and results during the replication workflow, including Replication tab and sidebar views.
  • Added SQL Console interface screenshot in Task 5 before example queries for clearer visual guidance.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: c960eaec-6ae1-44b0-bce1-e088efae3f8b

📥 Commits

Reviewing files that changed from the base of the PR and between b8a6e53 and 27c2021.

⛔ Files ignored due to path filters (7)

• 10-databases/visualizer/screenshots/01-replication-tab.png is excluded by !**/*.png, !**/screenshots/**, !**/*.png
• 10-databases/visualizer/screenshots/02-sidebar-state.png is excluded by !**/*.png, !**/screenshots/**, !**/*.png
• 10-databases/visualizer/screenshots/03-replication-result.png is excluded by !**/*.png, !**/screenshots/**, !**/*.png
• 10-databases/visualizer/screenshots/04-consistency-committed.png is excluded by !**/*.png, !**/screenshots/**, !**/*.png
• 10-databases/visualizer/screenshots/05-schema-no-index.png is excluded by !**/*.png, !**/screenshots/**, !**/*.png
• 10-databases/visualizer/screenshots/06-schema-with-index.png is excluded by !**/*.png, !**/screenshots/**, !**/*.png
• 10-databases/visualizer/screenshots/07-sql-console.png is excluded by !**/*.png, !**/screenshots/**, !**/*.png

📒 Files selected for processing (1)

• 10-databases/visualizer/LAB-VISUALIZER.md

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📝 Walkthrough

Walkthrough

The lab documentation now includes additional screenshot embeds throughout Tasks 1–4 to visually confirm UI states and results. Task 5 is expanded with a screenshot of the SQL Console before listing example queries, providing clearer visual guidance during the lab exercises.

Changes

Cohort / File(s)	Summary
Lab Documentation Screenshots 10-databases/visualizer/LAB-VISUALIZER.md	Added screenshot references to confirm Replication tab states, sidebar behavior, query results (REPLICATED, COMMITTED, index scans), and SQL Console interface during Tasks 1–5.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 Screenshots bloom like carrots bright,
Visual guides to show what's right,
From Replication tabs to SQL views,
Each image helps learners see what's true!
Lab instructions shine, now crystal clear. ✨

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/visualizer-screenshots

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_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[Copilot]

Pull request overview

Adds Playwright-captured screenshots to the Visualizer lab instructions so students can visually confirm they’re on the right screen and seeing the expected states during each task.

Changes:

• Inserted 7 screenshots into relevant steps in LAB-VISUALIZER.md (Replication tab, sidebar state, results, indexing, SQL console).
• Added screenshot assets under 10-databases/visualizer/screenshots/ and referenced them with relative Markdown links.

Reviewed changes

Copilot reviewed 1 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
10-databases/visualizer/LAB-VISUALIZER.md	Embeds screenshots at key checkpoints to make the lab steps easier to follow/verify.
10-databases/visualizer/screenshots/01-replication-tab.png	Screenshot asset for Replication tab checkpoint.
10-databases/visualizer/screenshots/02-sidebar-state.png	Screenshot asset for sidebar state checkpoint.
10-databases/visualizer/screenshots/03-replication-result.png	Screenshot asset for replicated result checkpoint.
10-databases/visualizer/screenshots/04-consistency-committed.png	Screenshot asset for committed transfer checkpoint.
10-databases/visualizer/screenshots/05-schema-no-index.png	Screenshot asset for “no index / full scan” checkpoint.
10-databases/visualizer/screenshots/06-schema-with-index.png	Screenshot asset for “with index” checkpoint.
10-databases/visualizer/screenshots/07-sql-console.png	Screenshot asset for SQL console section.