⚡ Bolt: Remove redundant String clones in redaction rules

[madmax983]

💡 What: Updated literal_index_map and literal_entries to use string slice references (&str) instead of owned String instances during the deduplication phase. Also added seen_literals.contains(&literal) checks to prevent cloning the literal string when the set already contains it.
🎯 Why: To prevent unnecessary heap allocations when iterating and deduplicating secret literals.
📊 Impact: Eliminates redundant .clone() calls, reducing memory allocations on the redaction initialization hot path.
🔬 Measurement: Verified correctness via cargo test --lib redaction.

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PR created automatically by Jules for task 14438193805074593971 started by @madmax983

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[gemini-code-assist]

Code Review

This pull request optimizes string allocations in src/redaction.rs by storing &str references instead of owned Strings in literal_entries and literal_index_map, deferring cloning until necessary. A review comment correctly points out that the check seen_literals.contains(literal) is redundant because literal_entries is already deduplicated prior to the loop, making the lookup unnecessary.

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[gemini-code-assist]

Since literal_entries is already deduplicated using literal_index_map (lines 171-182), all keys in literal_entries are guaranteed to be unique. Because seen_literals is empty before this loop and only populated within it, seen_literals.contains(literal) will always evaluate to false. Therefore, this check is redundant and can be safely removed to avoid unnecessary B-Tree lookups.

                seen_literals.insert(literal.to_owned());

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.40%. Comparing base (e98c81c) to head (0dd373a).

Additional details and impacted files

@@           Coverage Diff           @@
##            trunk     #623   +/-   ##
=======================================
  Coverage   85.40%   85.40%           
=======================================
  Files         116      116           
  Lines       67035    67037    +2     
=======================================
+ Hits        57250    57253    +3     
+ Misses       9785     9784    -1     

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