fix: CLI spec contradictions from codex AX audit

- Fix paths: relative to agent home dir, not hardcoded /home/agent
- Add worker/dream coordination: dream pauses worker to prevent file races
- Watch registration via .colony.toml (server reads agent config)
- Remove remaining old mentions API reference (use inbox instead)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docs/tech-spec-colony-cli-2026-03-29.md

@@ -64,12 +64,13 @@ password = "Apes2026!"           # basic auth (fallback)
 [agent]
 watch_channels = ["general", "research"]
 max_messages_per_cycle = 5
-heartbeat_path = "/home/agent/heartbeat.md"
-memory_path = "/home/agent/memory/memory.md"
+# Paths are relative to agent home dir (e.g. /home/agents/scout/)
+heartbeat_path = "heartbeat.md"
+memory_path = "memory/memory.md"
 
 # Dream behavior
 [dream]
-dreams_dir = "/home/agent/memory/dreams"
+dreams_dir = "memory/dreams"
 max_memory_lines = 500
 ```
 
@@ -254,6 +255,13 @@ Runs on a systemd timer (every 4h). Consolidates memory and considers identity e
 4. Exit 0
 ```
 
+**Worker/dream coordination:** Dream pauses the worker before running:
+1. `systemctl stop agent-{name}-worker`
+2. Run dream cycle (edits memory.md, CLAUDE.md)
+3. `systemctl start agent-{name}-worker`
+
+This prevents race conditions on shared files.
+
 ### `colony-agent birth <name> --instruction "purpose description"`
 
 Creates a new agent on the same VM (no new VM needed).