Modernize lab guides and update migration workflow

[manojgowda-spektra]

🧪 PR Summary

---

🔄 Type of Change (Select at least one)

• Azure Portal UI change
• Step / instruction update
• Content improvement (clarity/typos)
• Screenshot update
• Broken link fix
• Service rename / feature deprecation
• Dependency failure/ version conflict
• Lab flow change
• Validation fix
• Optimization / better experience

---

📌 Reason for Change

Why was this update needed?

• Azure UI/Workflow changed
• Learners reported issue
• Internal QA finding
• Service behavior changed
• Optimization / better experience
• Security / compliance update

Brief explanation:

Conducted a comprehensive, repository-wide review to elevate the English language quality to production standards. Additionally, addressed a critical technical deprecation (DMA retirement) and resolved formatting glitches, hardcoded variables, and numbering sequence errors discovered during QA to ensure a flawless learner experience.

---

📝 What Was Modified

Describe EXACTLY what changed from learner perspective:

• Files modified: 1.md, 2.md, 3.md, 4.md, 5.md, 6.md, 7.md, 8.md, 9.md, 10.md (Located in the Hands-on lab/ directory)

• Old behavior / text:

• Technical: 4.md utilized the Data Migration Assistant (DMA) for schema migration, which is a retired capability.
• Formatting & Typos: 2.md contained a broken header (## OverviAzure) and duplicated text artifacts at the end of the file. 10.md was incorrectly labeled as "Exercise 8".
• Variables: 10.md contained hardcoded placeholders (e.g., partsxxxx) instead of dynamic lab injection keys.
• Language: Across all guides, there were inconsistent UI labels, run-on sentences, grammatical errors, and unprofessional phrasing that detracted from the premium feel of the lab.

• New behavior / text:

• Technical Overhaul (4.md): Completely rewrote the schema migration workflow to utilize the fully supported SSMS Generate Scripts wizard, including clear instructions for learners to clean up unsupported T-SQL statements prior to target execution.
• Error Corrections: Fixed the broken header and removed duplicated lines in 2.md. Corrected the sequential numbering in 10.md from Exercise 8 to Exercise 10.
• Dynamic Variables: Replaced all hardcoded xxxx strings in 10.md with standard <inject key="DeploymentID" enableCopy="false"/> tags to ensure seamless deployment tracking.
• Comprehensive Language Polish: Normalized technical terminology, tightened sentence punctuation for clarity, and improved instructional tone across all 10 guides. Strictly preserved all technical content, injection tags, and screenshot paths.

---

🧪 Validation Done

• Followed the lab end-to-end after changes
• Steps are in correct sequence
• Screenshots match current Azure UI
• All links tested
• No copy-paste or formatting issues
• All injection keys strictly preserved and verified

---

🔗 References

• Support ticket / issue: N/A
• Azure announcement link: [DMA Schema Migration Retirement]
• Learner feedback link: N/A

---

🧠 Reviewer Notes

Anything reviewers should double-check?

• Lab 4 (4.md): Please verify the new SSMS Generate Scripts workflow. It is functionally accurate and acts as a direct, supported drop-in replacement for the retired DMA schema process.
• Lab 10 (10.md): Confirm that the dynamic injection tags added to replace the old xxxx placeholders render correctly in your lab platform environment.
• General Review: Spot-check the grammatical enhancements across the guides. The intent was to achieve a highly professional, native-English instructional tone while leaving the core lab flow entirely untouched.