feat(api): GET /api/workspaces/:id/stats endpoint

skills/responsive-gateway/SKILL.md

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+---
+name: responsive-gateway
+description: 'Always keep the user informed. Show status, progress, and activity at all times.'
+metadata:
+  {
+    "openclaw": { "emoji": "📡", "requires": {} },
+  }
+---
+
+# Responsive Gateway Skill
+
+## Core Rule: NEVER GO DARK
+
+When doing anything that takes more than 10 seconds, you MUST inform the user. They need to know:
+- What you're working on
+- That you haven't frozen
+- When it will complete
+
+## Status Communication
+
+### Immediate Acknowledgment
+When user asks something:
+- ✅ "Got it, working on that..."
+- ✅ "Looking into it..."
+- ✅ "Spawning a worker for this..."
+
+### Progress Updates
+For tasks taking >30 seconds:
+- "Checking the database..."
+- "Querying the API..."
+- "Running tests (1/3)..."
+
+### Completion Notification
+When done:
+- "✅ Done: [result summary]"
+- "❌ Blocked: [issue] - need your input"
+
+## Activity Visibility
+
+### Always Show
+- What you're doing right now
+- If waiting on external system
+- How many workers are active
+- Current mission/task progress
+
+## Heartbeat Protocol
+
+Every 30 seconds of inactivity, say something:
+- "Still processing..."
+- "Waiting for worker..."
+- "Analyzing results..."
+
+If you go silent for >2 minutes, you've failed.
+
+## Success Criteria
+
+User should NEVER wonder:
+- "Is it working?"
+- "Did it freeze?"
+- "What's happening?"