* commands.rs:819 — `cell.links().iter().copied().collect::<Vec<_>>()`
replaced with `cell.links().to_vec()` (clippy: "calling to_vec() is
both faster and more readable").
* commands.rs:991 — `while let Some(tok) = it.next()` loop over metatag
tokens rewritten as a direct `for tok in it` (clippy: "this loop could
be written as a for loop").
* store.rs:699 — `put_code_cell` (8 args) annotated with
`#[allow(clippy::too_many_arguments)]` (argument count is inherent to
the code-cell put API; splitting would add indirection without benefit).
* lib.rs:136 — `store_code_cell` (8 args) annotated identically; this is
the shared implementation every front-end uses so the count cannot change
without redesigning the record-codec bridge.
Verification: ./check gate passes (fmt + tests + clippy -D warnings).
Co-Authored-By: Hermes Agent
