## Summary
- make the differential file-size ratchet a first-class repository gate
- run the same unfiltered gate from pre-push, `just check`, and CI
- remove hidden file-size coupling from Desktop, Web, and Mobile lint
commands
- isolate ratchet Git subprocesses from hook-exported repository state
## Why
The Desktop ratchet grew to govern `desktop/src-tauri/crates/**`, but
the pre-push `desktop-check` command remained path-filtered to non-Tauri
files. That contract drift allowed a Tauri Rust file-size regression
through local validation.
The ratchet already computes its own merge-base diff, so duplicating
governed paths in Lefthook and CI adds drift risk without meaningful
runtime savings. One root gate owns the policy now.
## Testing
- `just file-size-check`
- oversized untracked probe under `desktop/src-tauri/crates/**` fails
with the 1,000-line ceiling
- file-size core tests with hook-style `GIT_DIR` / `GIT_WORK_TREE`
environment
- `lefthook dump` confirms the unfiltered pre-push command
- mandatory pre-push suite passed on
`3217003db10c84d8a0c5f636ec4c92936777a002`
- `git diff --check`
Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
