Add /tasks skill for Google Tasks

- New gtasks skill with thin wrapper around morning-report collector
- Register /tasks command with /todo, /todos aliases
- Design doc at docs/plans/2026-01-05-gtasks-skill-design.md

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

skills/gtasks/scripts/list.py

@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+"""List Google Tasks - thin wrapper around morning-report collector."""
+
+import sys
+from pathlib import Path
+
+# Import from morning-report collector
+sys.path.insert(0, str(Path.home() / ".claude/skills/morning-report/scripts/collectors"))
+
+from gtasks import fetch_tasks, format_tasks
+
+
+def main():
+    max_display = int(sys.argv[1]) if len(sys.argv) > 1 else 10
+    tasks = fetch_tasks(max_results=max_display + 5)
+
+    if not tasks:
+        print("No pending tasks.")
+        return
+
+    # Check for error response
+    if len(tasks) == 1 and "error" in tasks[0]:
+        print(f"Error: {tasks[0]['error']}")
+        return
+
+    print(format_tasks(tasks, max_display))
+
+
+if __name__ == "__main__":
+    main()