Fix: how-to guide builder edge case

[yashrastogi019-cell]

Fixes: #242

issue occurred when workflow.get('ai_analysis') returned None and code attempted to call get() without checking if it was None first

"workflow.get('ai_analysis', {})"
providing the default value {} only works when key is None but there was no handling when key value is None

• added isinstance at 897 to check ex must be a dictionary

TEST CASES

[yusufkaraaslan]

Thank you @yashrastogi019-cell for this excellent bug fix! 🎉

Your solution correctly handles the edge case where ai_analysis is None instead of a dictionary. The code changes are:

• ✅ Safe and well-designed
• ✅ Follows best practices (DRY principle)
• ✅ Fixes the real crash reported in [BUG] C3.3 How-To Guide generation fails with 'NoneType' object has no attribute 'get' #242
• ✅ Uses proper defensive programming patterns

However, this PR has merge conflicts with the latest development branch due to code formatting changes from PR #251 (ruff/mypy formatting applied to entire codebase).

Could you please rebase your branch?

# Add upstream remote if you haven't already
git remote add upstream https://github.com/yusufkaraaslan/Skill_Seekers.git

# Fetch latest changes
git fetch upstream

# Rebase your branch onto latest development
git checkout fix-how-to-guide-builder
git rebase upstream/development

# Resolve any conflicts (likely just formatting)
# Then force push (safe because it's your branch)
git push --force-with-lease

Conflict Resolution Tips:

• The conflicts will be formatting-only (line wrapping, quote changes)
• Accept the newer formatted version and keep your logic changes
• Your or {} and isinstance() changes should remain

Once rebased, I'll merge this immediately! The fix is solid. 👍

Questions? Feel free to ask if you need help with the rebase process.

[yashrastogi019-cell]

Hi @yusufkaraaslan 👋
I’ve rebased the branch onto the latest development and force-pushed the updated commits.

Thanks!