storkit: create 441_refactor_deduplicate_get_project_root_wrappers_in_io_modules

.storkit/work/1_backlog/441_refactor_deduplicate_get_project_root_wrappers_in_io_modules.md

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+---
+name: "Deduplicate get_project_root wrappers in io modules"
+---
+
+# Refactor 441: Deduplicate get_project_root wrappers in io modules
+
+## Current State
+
+- TBD
+
+## Desired State
+
+Both `io/shell.rs` and `io/search.rs` contain identical private one-liner wrappers around `state.get_project_root()`. Either inline the call at each usage site or create a single shared helper, then delete the duplicate wrappers.
+
+## Acceptance Criteria
+
+- [ ] No duplicate private get_project_root wrappers in io/shell.rs and io/search.rs
+- [ ] All call sites use the canonical version or inline the call
+
+## Out of Scope
+
+- TBD