simplify

# Simplify Post-implementation simplification pass. Review recently changed code and actively simplify it while preserving all behavior. ## Planner Entry Run `/simplify` only on explicit request or when an actionable PR finding calls for it. It is not a default post-implementation or pre-PR pass. The best code is code you don't have to write. The second best is code anyone can read. ## Steps ### 1. Identify what to simplify Run `git diff --name-only` (or `git diff origin/<base>...HEAD --name-only` for a branch) to get the changed files. Read each one. ### 2. Apply simplifications Work through each changed file. Preserve behavior by inspection; defer broad test suites, lint, typecheck, and full verification until after this pass. Report any verification concerns and the focused task check to run next. **Inline one-off abstractions:** - Helper functions with a single call site — inline them - Wrapper types that add no behavior — remove the wrapper - Interfaces with a single implementation and no test mock — remove the interface **Remove speculative code:** - Unused function parameters or return values - Config options that are parsed but never read - "Reserved for future" scaffolding, empty extension points - Feature flags with no toggle mechanism **Reduce nesting:** - Replace nested if/else with early returns (guard clauses) - Replace nested ternaries with if/else or switch - Extract deeply nested blocks into named functions **Replace cleverness with clarity:** - ...