docs: move hive-forge cli reference to docs/tools/forge.md

CLAUDE.md

@@ -363,7 +363,7 @@ docs/
                        inbox, live view, per-agent endpoints, stats)
   turn-loop.md         claude invocation, wake prompt, MCP tool surface
   tools/               per-group tool docs (bash.md, lifecycle.md,
-                         scheduling.md, matrix.md)
+                         scheduling.md, matrix.md, forge.md)
   approvals.md         approval flow, manager policy, helper events
   persistence.md       sqlite dbs, retention, state dir layout
   terminal-rendering.md  per-agent terminal row taxonomy (as built)
@@ -417,6 +417,9 @@ read them à la carte.
 - **"How do per-agent forge accounts work? What does forge_notify
   poll + how does it format wake messages?"** →
   [`docs/forge.md`](docs/forge.md).
+- **"What verbs does `hive-forge` support? How do I post a comment,
+  upload an attachment, manage subscriptions?"** →
+  [`docs/tools/forge.md`](docs/tools/forge.md).
 - **"How does the matrix-tuwunel container work? What about
   fluffychat-web and per-agent matrix accounts?"** →
   [`docs/matrix.md`](docs/matrix.md).