[Repo Assist] chore: cargo update + fix missing s keybinding in help overlay

[github-actions]

🤖 This PR was created by Repo Assist, an automated AI assistant.

What

Two small maintenance changes in one commit:

1. cargo update — patch dependency bumps

Crate	Before	After
libc	0.2.185	0.2.186
typenum	1.19.0	1.20.0
wasip2	1.0.2+wasi-0.2.9	1.0.3+wasi-0.2.9
wit-bindgen	(new)	0.57.1

All are indirect / build-tool dependencies; no production behaviour changes.

2. Fix missing s key in help overlay

handler.rs has always accepted both / and s to enter search or local-filter mode (same key match arm, documented in AGENTS.md), but the ? help screen only showed /. Updated the label from / to / or s to match the actual implementation.

Why

• Dependency freshness reduces exposure to known-fixed bugs in indirect deps.
• The help overlay inconsistency could confuse users who read AGENTS.md (which documents s) but can't find it in the built-in help.

Test Status

cargo check --all-targets  → clean
cargo fmt -- --check       → clean
cargo clippy -- -D warnings → clean
cargo test                 → 230 passed, 0 failed

No behaviour changes; no new/modified production logic.

Note

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[github-actions]

🤖 Repo Assist here.

This PR has a Cargo.lock conflict with the v0.10.0 release commit (both changed Cargo.lock). Rather than force-rebasing (which doesn't work well in the CI's shallow-clone environment), I've created a fresh replacement PR with the identical changes rebased on main:

→ See the replacement PR (created in this run)

You can close this one once the replacement is reviewed.

Generated by Repo Assist · ● 5.1M · ◷

To install this agentic workflow, run

gh aw add githubnext/agentics/workflows/repo-assist.md@cbb46ab386962aa371045839fc9998ee4e97ca64