docs: split combined hive-agent/hive-agent-mcp/hive-agent-wake bullet into three

CLAUDE.md

@@ -41,14 +41,16 @@ hand-maintained per-file tree drifts out of sync with the code.
 - **`hive-agent/`**, **`hive-agent-mcp/`**, **`hive-agent-wake/`** —
   in-container harness, three sibling crates for every agent (not a
   single `hive-ag3nt/` dir — that's the runtime/binary-family nickname,
-  not a directory). `hive-agent` is the serve-loop binary: turn-loop
-  *policy* layer (`turn.rs`) over the `hive-claude` driver, per-agent web
-  UI (`web_ui/` module dir), event + turn-stats sqlite sinks, login flow,
-  system-prompt renderer, forge-notify subscriber. `hive-agent-mcp` is
-  the embedded MCP server (long-lived streamable-http listener,
-  `hive-mcp-http` systemd unit) + its claude launch-config layer
-  (tool-group/capability → `--allowedTools`, `--mcp-config` render).
-  `hive-agent-wake` is a small external wake CLI for extra MCP
+  not a directory).
+- **`hive-agent/`** — the serve-loop binary: turn-loop *policy* layer
+  (`turn.rs`) over the `hive-claude` driver, per-agent web UI (`web_ui/`
+  module dir), event + turn-stats sqlite sinks, login flow, system-prompt
+  renderer, forge-notify subscriber.
+- **`hive-agent-mcp/`** — the embedded MCP server (long-lived
+  streamable-http listener, `hive-mcp-http` systemd unit) + its claude
+  launch-config layer (tool-group/capability → `--allowedTools`,
+  `--mcp-config` render).
+- **`hive-agent-wake/`** — small external wake CLI for extra MCP
   servers/helpers to nudge claude on external events.
 - **`hive-claude/`** — reusable, app-agnostic driver for headless
   `claude --print`: spawns the CLI, streams + classifies stream-json,