[docs] docs: unbloat upgrading guide - 70% reduction

[github-actions]

Summary

Successfully reduced bloat in the upgrading guide from 633 lines to 191 lines—a 70% reduction (442 lines removed).

Changes Made

Consolidated bullet lists: Converted excessive bullet point lists into concise prose throughout the document.

Removed redundant sections: Eliminated duplicate explanations for compilation, backup strategies, and command examples.

Streamlined command examples: Reduced verbose command blocks while preserving all essential information.

Simplified structure: Replaced repetitive "What to verify" sections with direct, actionable prose.

Condensed troubleshooting: Consolidated five detailed troubleshooting sections into a single concise section with essential solutions.

Reduced verbosity: Trimmed excessive tips, notes, and callouts while keeping critical warnings.

Key Improvements

• Prerequisites: 13 lines → 2 lines (concise verification steps)
• Step 1 (Extension upgrade): 22 lines → 5 lines (essential commands only)
• Step 2 (Backup): 18 lines → 2 lines (key approach)
• Step 4 (Review changes): 26 lines → 3 lines (core verification)
• Step 5 (Compilation): 34 lines → 3 lines (essential validation)
• Step 7 (Testing): 34 lines → 3 lines (key testing steps)
• Step 8 (Commit): 24 lines → 6 lines (streamlined process)
• Troubleshooting: 78 lines → 10 lines (80% reduction)
• Advanced topics: 74 lines → 7 lines (90% reduction)

Technical Details

• Before: 633 lines
• After: 191 lines
• Reduction: 442 lines (70%)
• File: docs/src/content/docs/guides/upgrading.md

Content Preserved

All essential technical information remains intact:

• Complete upgrade workflow steps
• Critical commands and syntax
• Important warnings about lock files
• Links to additional resources
• Troubleshooting guidance

Issues Encountered

Screenshot capture failed: Playwright browser cannot connect to localhost:4321 in the sandboxed environment. The error ERR_CONNECTION_REFUSED indicates network restrictions preventing browser automation from accessing the local preview server. This is a technical limitation of the current environment configuration, not an issue with the documentation changes.

Cache Updated

Updated /tmp/gh-aw/cache-memory/cleaned-files.txt to track this cleanup and prevent duplicate work in future runs.

AI generated by Documentation Unbloat

[pelikhan]

@copilot remove step 2

[Copilot]

@pelikhan I've opened a new pull request, #11277, to work on those changes. Once the pull request is ready, I'll request review from you.