feat: update .gitignore to include flows directory and adjust clawteam templates exclusion; enhance LEARNINGS.md and RULES.md with critical spawn method guidelines; revise TOOLS.md to emphasize tmux usage; modify SKILL.md files to prohibit subprocess backend; increase memory limit in docker-compose.yml

.openclaw/workspace/skills/clawteam-dev/SKILL.md

@@ -214,9 +214,9 @@ ls ~/.clawteam/workspaces/ 2>&1 | grep -q "No such file" && echo "OK: no workspa
 
 Add `--transport p2p` and `export CLAWTEAM_TRANSPORT=p2p` before Step 3 to test ZeroMQ direct messaging with file fallback. The rest of the steps remain the same.
 
-### With subprocess Backend
+### ⚠️ Do NOT use subprocess backend
 
-Replace `clawteam spawn` with `clawteam spawn subprocess claude` to test the subprocess backend instead of tmux. Note: `board attach` and tmux verification steps won't apply.
+The `subprocess` backend causes agents to die immediately after the shell exits. **Always use the tmux backend** for persistent agent sessions.
 
 ## What This Test Validates
 
@@ -224,7 +224,7 @@ Replace `clawteam spawn` with `clawteam spawn subprocess claude` to test the sub
 |-----------|-----------|
 | `team spawn-team` | Team creation with leader |
 | `task create --blocked-by` | Task dependency chains |
-| `spawn` (tmux backend) | Agent process launch with worktree isolation |
+| `spawn` (tmux backend only) | Agent process launch with worktree isolation |
 | Identity propagation | Env vars passed to sub-agents |
 | Agent coordination | Workers update task status and send messages to leader |
 | Auto-unblock | Blocked task unblocked when dependencies complete |