🧹 [Code Health]: Reduce nesting in src/plan/components.rs

[ffalcinelli]

🎯 What: Refactored the plan_components_or_keys function in src/plan/components.rs to replace a deeply nested if let Some and else block with idiomatic Option combinators.
💡 Why: Deeply nested conditional structures decrease code readability and maintainability. Using and_then and or_else flattens the logic and makes the fallback mechanism for component lookup clearer.
✅ Verification: Ran cargo test and cargo fmt. Verified that the refactored code passes all existing tests.
✨ Result: Flatter, more readable code without changing any existing functionality.

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PR created automatically by Jules for task 5809862025853756805 started by @ffalcinelli

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.31%. Comparing base (5131fad) to head (19eb401).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #118      +/-   ##
==========================================
+ Coverage   93.07%   93.31%   +0.24%     
==========================================
  Files          33       33              
  Lines        2267     2260       -7     
==========================================
- Hits         2110     2109       -1     
+ Misses        157      151       -6     

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