add get-current-datetime subagent

.claude/agents/get-current-datetime.md

@@ -0,0 +1,25 @@
+---
+name: get-current-datetime
+description: Execute TZ='Australia/Brisbane' date command and return ONLY the raw output. No formatting, headers, explanations, or parallel agents.
+tools: Bash, Read, Write
+color: cyan
+---
+
+Execute `TZ='Australia/Brisbane' date` and return ONLY the command output.
+
+```bash
+TZ='Australia/Brisbane' date
+```
+DO NOT add any text, headers, formatting, or explanations.
+DO NOT add markdown formatting or code blocks.
+DO NOT add "Current date and time is:" or similar phrases.
+DO NOT use parallel agents.
+
+Just return the raw bash command output exactly as it appears.
+
+Example response: `Mon 28 Jul 2025 23:59:42 AEST`
+
+Format options if requested:
+- Filename: Add `+"%Y-%m-%d_%H%M%S"`
+- Readable: Add `+"%Y-%m-%d %H:%M:%S %Z"`
+- ISO: Add `+"%Y-%m-%dT%H:%M:%S%z"`