refactor(cmd): split commands.rs into per-domain modules

[duyet]

Why

src/commands.rs held every command plus TUI plumbing in one 4,271-line file. Concurrent features collided there, and reviews mixed unrelated domains. The internal seams were already run_* per command, so this is a mechanical split with no behavior change.

Closes #24.

Scope

• Add src/cmd/ with auth, login, models, usage, config_tui, launch, account, keys, menu, and dispatch.
• src/commands.rs is a 154-line shim: run(), dispatch(), and the cmd imports. Target was ≤ 300 lines.
• pub mod cmd; in src/lib.rs (alphabetically between channel and commands). Public entry stays commands::run.
• Unit tests moved with their code: persist_login_tests in login.rs, picker catalog tests in models.rs, launcher tests in dispatch.rs.
• No function renames. No command behavior change. Version stays 0.1.x.

Tradeoffs

Shared helpers that would cycle menu ↔ config_tui or models ↔ launch live in dispatch.rs as a leaf: config_path, CreditsCache, catalog_lookup_enabled, tool_command_for, persist_tool_command, launcher_last_tool. RoutingField lives next to toggle_agent_routing_field in models.rs. pub(crate) on moved items is the crate-internal surface; nothing new is public outside the crate.

Blast Radius

Every CLI command still enters through commands::run. Callers in src/main.rs are unchanged. Reviewers should spot-check a few function bodies against main (ignore pub(crate) and rustfmt wraps on longer signatures). Do not merge release-please #15.

Verification

• wc -l src/commands.rs → 154

• cargo test --locked --all-targets → 186 lib + 68 cli + 7 release_lock

• cargo fmt --check → exit 0

• cargo clippy --locked --all-targets -- -D warnings → no new hits under src/cmd/ or src/commands.rs (baseline warnings remain in upgrade.rs / spawn.rs / http.rs, owned by chore(dx): enforce clippy and rustfmt in CI #45)

• cargo build --locked --target wasm32-unknown-unknown --no-default-features → exit 0

• control-anyr launch + doctor → all ok

• Driven isolated anyr --help, --version, whoami, menu --dump-tui, config --dump-tui, auth --help → exit 0; help still lists CORE COMMANDS / LAUNCH; whoami masks the fixture key; menu dump shows LAUNCH / claude / CONFIGURE; config dump shows ACCOUNT / MODEL / AGENT / GENERAL

• Version stays on 0.1.x (do not introduce 0.2 / 1.0)

• Do not auto-merge release-please PRs

  

[github-actions]

anyr size and startup

Startup is wall time for a cold anyr --version / anyr --help (median of 21 runs). Size is the stripped release binary, or the .wasm for the browser demo.

Size budget: anyr-linux-x86_64 must stay ≤ 4.0 MiB (4194304 bytes) stripped.

Asset	Kind	Size	--version median	--help median
anyr-darwin-arm64	native	2.8 MiB	4.41 ms	3.9 ms
anyr-darwin-x86_64	native	3.0 MiB	53.54 ms	50.88 ms
anyr-linux-arm64	native	2.8 MiB	0.7 ms	0.74 ms
anyr-linux-x86_64	native	3.1 MiB	1.03 ms	1.02 ms
anyr-windows-x86_64.exe	native	2.5 MiB	9.47 ms	9.74 ms
anyr.wasm	wasm	178.7 KiB	—	—

Budget check: ok

raw timings

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