Add complete OAuth token refresh and sync solution

- Setup wizard with auto-detection of OpenClaw paths and Claude CLI
- Token sync watcher (inotifywait) for real-time credential updates
- Auto-refresh trigger timer that runs Claude CLI every 30 min
- Supports Claude CLI in Docker container or on host
- Temporary ANTHROPIC_BASE_URL override for container environments
- Anthropic model configuration for OpenClaw
- Auth profile management (fixes key vs access field)
- Systemd services and timers for both sync and trigger
- Comprehensive documentation and troubleshooting guides
- Re-authentication notification system

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

templates/oauth.json.template

@@ -0,0 +1,10 @@
+{
+  "anthropic": {
+    "access": "sk-ant-oat01-YOUR_ACCESS_TOKEN_HERE",
+    "refresh": "sk-ant-ort01-YOUR_REFRESH_TOKEN_HERE",
+    "expires": 1772120060006,
+    "scopes": ["user:inference", "user:mcp_servers", "user:profile", "user:sessions:claude_code"],
+    "subscriptionType": "max",
+    "rateLimitTier": "default_claude_max_5x"
+  }
+}

templates/refresh-claude-token.service

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+[Unit]
+Description=Refresh Claude OAuth Token (one-shot)
+
+[Service]
+Type=oneshot
+ExecStart=@@REFRESH_SCRIPT_PATH@@
+StandardOutput=journal
+StandardError=journal
+SyslogIdentifier=refresh-claude-token

templates/refresh-claude-token.timer

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+[Unit]
+Description=Refresh Claude OAuth Token every 6 hours
+
+[Timer]
+OnBootSec=5min
+OnUnitActiveSec=6h
+Persistent=true
+
+[Install]
+WantedBy=timers.target

templates/sync-oauth-token.service

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+[Unit]
+Description=Sync Claude OAuth Token to OpenClaw
+After=docker.service
+Requires=docker.service
+
+[Service]
+Type=simple
+ExecStart=@@SYNC_SCRIPT_PATH@@
+Restart=always
+RestartSec=10
+StandardOutput=journal
+StandardError=journal
+SyslogIdentifier=sync-oauth-token
+
+[Install]
+WantedBy=multi-user.target

templates/trigger-claude-refresh.service

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+[Unit]
+Description=Trigger Claude CLI OAuth token refresh
+After=docker.service
+Requires=docker.service
+
+[Service]
+Type=oneshot
+ExecStart=@@TRIGGER_SCRIPT_PATH@@
+StandardOutput=journal
+StandardError=journal
+
+[Install]
+WantedBy=multi-user.target

templates/trigger-claude-refresh.timer

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+[Unit]
+Description=Trigger Claude CLI OAuth token refresh every 30 minutes
+
+[Timer]
+OnBootSec=5min
+OnUnitActiveSec=30min
+AccuracySec=1min
+
+[Install]
+WantedBy=timers.target