Feature/code improvements#4

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ricardohsmello merged 15 commits into

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feature/code-improvements

May 11, 2026

Commits on Apr 30, 2026

Including sl4j import for removing unnecessary log
ricardohsmello
committed

Commits on May 8, 2026

chore: upgrade MongoDB Java driver and remove unnecessary SLF4J logs
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Simplify $match aggregation example using exact title filter
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Add $limit and $project aggregation example
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Add dedicated $project aggregation example and explanation
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refactor: simplify aggregation limit examples and improve descriptions
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refactor: improve aggregation sort example and description
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refactor: simplify challenge boilerplate so learners can focus on pipeline stages
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Including simple comments
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refactor: improve array aggregation examples and explanatory notes
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refactor: improve unwind example readability and projection style
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Including books collection
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refactor: improve lookup challenge scaffolding and notebook guidance
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refactor: improve group example wording and formatting
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refactor: improve group challenges and add clearer aggregation hints
ricardohsmello
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