prose: document ant node dismiss and node status health/eviction output

[JimCollinson]

Draft prose PR from the daily upstream-drift sweep. ant-client added a node-management command and expanded the ant node status output; this documents both on the CLI command reference. This revision corrects the default data-directory root in the JSON example.

Upstream

• ant-client: 95a23be → bcab72a (audited at bcab72ae72f72abcc47bdae1387ebc1deeea6106)

Source artifacts inspected

• ant-cli/src/commands/node/status.rs, ant-cli/src/commands/node/dismiss.rs
• ant-core/src/config.rs (data_dir() → Linux ~/.local/share/ant)
• ant-core/src/node/registry.rs (add → service_name = format!("node{id}")), ant-core/src/node/mod.rs (node_data_dir → <data>/nodes/node-{id})
• ant-core/src/node/types.rs, ant-core/src/node/daemon/health.rs, ant-core/src/node/daemon/disk.rs, ant-core/src/node/daemon/supervisor.rs (evict_node)

Files changed in this PR

• docs/cli/command-reference.md only.

Review findings addressed in this revision

1. Default data_dir root (High) — config::data_dir() resolves to ~/.local/share/ant on Linux (config.rs:8,23, test data_dir_ends_with_ant), so the CLI-generated default is <data>/ant/nodes/node-{id}. The example candidate data_dir is now /home/alice/.local/share/ant/nodes/node-2 (corrected from .../autonomi/nodes/node-2).

Earlier rounds (still in place): CLI-generated identifiers node1/node2/node3 and the .../nodes/node-{id} path shape (registry.rs:88, mod.rs:260-266); the audited dismiss output ✓ Dismissed node 3 (node3); reclaimed_bytes framed as the recorded pre-deletion estimate (not proof of current free space), with readers directed to check actual free disk space before adding a replacement; "node daemon" terminology throughout the new prose; the source-consistent example state (two running nodes sharing a partition so a candidate is valid, plus one evicted node; total_running: 2, total_stopped: 1); health-null semantics; the dismiss safety warning; field optionality; the outcome-oriented dismiss heading with a **Command:** line; the bcab72a / 2026-07-13 verification stamp; and the one-file scope.

Verification run

• python3 scripts/sweep_poll.py: status: "ok"; docs/cli/command-reference.md not drifted on this branch.
• JSON example re-validated with json.loads; candidate data_dir asserted equal to /home/alice/.local/share/ant/nodes/node-2; no share/autonomi residue.
• Path root cross-checked against config.rs at the pinned SHA.
• No #### headings; no prohibited words in the additions.
• markdownlint / link-check: skipped — not installed/configured in-repo.
• Only docs/cli/command-reference.md changed; no skill body change, so no linked release is included.

Uncertainties
None. Illustrative values (byte counts, timestamps, PIDs, the /home/alice home prefix) are examples; the data-root segment (ant), identifiers, path shape, field names, types, wire values, count semantics, and the reason/summary/output strings are taken from source.