Code Simplifier

Built specifically for the RTK project, this reviews Rust code for verbose patterns and applies idiomatic simplifications without breaking behavior. It knows RTK's non-negotiable constraints (lazy_static regexes, mandatory context() chains, fallback handlers) and won't touch them. Instead it targets the usual suspects: manual loops that should be iterator chains, nested matches that need flattening, unnecessary clones and allocations. The simplifications are standard Rust idioms, nothing clever. Useful when you've been heads-down implementing features and the code works but reads like you were thinking in Python. Runs clippy and tests after changes to verify no regressions.