fix(config): correct working_dir for non-Kiro agents in example (#756)

Only kiro-cli and cursor-agent use /home/agent (their Dockerfiles create
an agent user). All other backends (codex, gemini, copilot, claude,
opencode) use Node.js base images with /home/node as the home directory.

Co-authored-by: 超渡法師 <chaodu@openab.dev>

Author: chaodu-agent

config.toml.example

@@ -53,7 +53,7 @@ working_dir = "/home/agent"
 # [agent]
 # command = "claude"
 # args = ["--acp"]
-# working_dir = "/home/agent"
+# working_dir = "/home/node"
 # ⚠️ SECURITY WARNING: Any env var listed here is accessible to the agent.
 # A user could trick the agent into leaking these values via prompt injection.
 # All supported backends support OAuth login — prefer that over env var API keys.
@@ -71,19 +71,19 @@ working_dir = "/home/agent"
 # [agent]
 # command = "codex"
 # args = ["--acp"]
-# working_dir = "/home/agent"
+# working_dir = "/home/node"
 # env = { OPENAI_API_KEY = "${OPENAI_API_KEY}" }
 
 # [agent]
 # command = "gemini"
 # args = ["--acp"]
-# working_dir = "/home/agent"
+# working_dir = "/home/node"
 # env = { GEMINI_API_KEY = "${GEMINI_API_KEY}" }
 
 # [agent]
 # command = "copilot"
 # args = ["--acp", "--stdio"]
-# working_dir = "/home/agent"
+# working_dir = "/home/node"
 # env = {}  # Auth via: kubectl exec -it <pod> -- gh auth login -p https -w
 
 # [agent]

docs/config-reference.md

@@ -107,28 +107,28 @@ working_dir = "/home/agent"
 [agent]
 command = "claude"
 args = ["--acp"]
-working_dir = "/home/agent"
+working_dir = "/home/node"
 env = { ANTHROPIC_API_KEY = "${ANTHROPIC_API_KEY}" }
 
 # Codex
 [agent]
 command = "codex"
 args = ["--acp"]
-working_dir = "/home/agent"
+working_dir = "/home/node"
 env = { OPENAI_API_KEY = "${OPENAI_API_KEY}" }
 
 # Gemini CLI
 [agent]
 command = "gemini"
 args = ["--acp"]
-working_dir = "/home/agent"
+working_dir = "/home/node"
 env = { GEMINI_API_KEY = "${GEMINI_API_KEY}" }
 
 # GitHub Copilot
 [agent]
 command = "copilot"
 args = ["--acp", "--stdio"]
-working_dir = "/home/agent"
+working_dir = "/home/node"
 
 # opencode
 [agent]