refactor: slim system prompt — SOUL.md+STATUS.md only, fix duplicate time injection

agentclaw/app/agent_claw_main/main.py

@@ -527,16 +527,8 @@ async def main(payload: dict, context):
     if ltm_block:
         system_prompt = system_prompt + '\n\n---\n\n' + ltm_block
 
-    # Inject current datetime so the model always has accurate time context
-    from datetime import datetime
-    from zoneinfo import ZoneInfo
-    _tz = ZoneInfo('America/Chicago')
-    _now = datetime.now(_tz)
-    _time_str = _now.strftime('%A, %B %d, %Y %I:%M %p %Z')
-    system_prompt = system_prompt + f'\n\nCurrent date/time: {_time_str}'
-    system_prompt += 'AWS tools available: call_aws (any AWS API via AWS MCP Server), aws_list_lambda_functions, aws_get_cost_and_usage, aws_describe_service. Use call_aws directly for AWS API calls — do NOT say you lack AWS access.'
+    system_prompt += '\nAWS tools available: call_aws (any AWS API via AWS MCP Server), aws_list_lambda_functions, aws_get_cost_and_usage, aws_describe_service. Use call_aws directly for AWS API calls — do NOT say you lack AWS access.'
     system_prompt += '\n\nSubagents available — use them aggressively to save cost and improve quality:\n- aws_agent: all AWS infrastructure, cost, resource, IAM, CloudWatch queries\n- coding_agent: code writing, builds, deployments, CodeBuild/AppRunner/ECR\n- document_agent: summarize URLs, extract data from documents, process long text\nDefault to delegating; only answer directly for simple conversational responses or tasks that don\'t fit a subagent.'
-    print(f'[main] System prompt time injection: {_time_str}')
 
     # Model: claude-sonnet-4-6 via cross-region inference
     # NOTE: extended thinking disabled — causes retry/duplicate issues with streaming