hive-forge: fix stale ci-rerun CLI variant doc

The clap subcommand doc in main.rs still described the old web-route
implementation (--job, 'POSTs the rerun web action'), which surfaces in
hive-forge --help. Update it to match the workflow-dispatch rework.

hive-forge/src/main.rs

@@ -165,9 +165,10 @@ enum Verb {
     /// [--step i]`). Uses Forgejo's web run-view streamer (no REST
     /// endpoint exists); reliable for live + recently-finished runs.
     CiLog(verbs::ci_log::Args),
-    /// Re-run a CI Actions run without an empty commit (`--run <n>
-    /// [--job i]`, or `--pr <n>` to resolve the head run). POSTs the
-    /// rerun web action; re-runs all jobs unless `--job` is given.
+    /// Re-run CI without an empty commit: dispatches a fresh run via the
+    /// workflow-dispatch API. Pass one of `--pr <n>` (the PR head branch),
+    /// `--run <n>` (branch + workflow resolved from that run), or
+    /// `--branch <name>`; `--workflow <file>` defaults to `ci.yml`.
     CiRerun(verbs::ci_rerun::Args),
 }