fix: delete devices dir to force fresh auto-pair, skip error replies

- Delete ~/.openclaw/devices/ on startup to force fresh auto-pair
with operator.write/read scopes (fixes A2A dispatch error)
- Conversation loop now checks task state=failed and skips errors
- Force rebuild (v3.9)

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

Dockerfile

@@ -1,4 +1,4 @@
-# OpenClaw on Hugging Face Spaces — Pre-built image (v3.8)
+# OpenClaw on Hugging Face Spaces — Pre-built image (v3.9)
 # Uses official pre-built image to avoid 30+ minute builds on cpu-basic
 
 # ── Stage 1: Pull pre-built OpenClaw ─────────────────────────────────────────

scripts/conversation-loop.py

@@ -31,6 +31,13 @@ def send_a2a(url, text):
     try:
         resp = requests.post(f"{url}/a2a/jsonrpc", json=payload, timeout=90)
         data = resp.json()
+        # Check if task failed
+        state = data.get("result", {}).get("status", {}).get("state", "")
+        if state == "failed":
+            parts = data.get("result", {}).get("status", {}).get("message", {}).get("parts", [])
+            err = parts[0].get("text", "") if parts else "unknown error"
+            print(f"[error] A2A task failed: {err}", file=sys.stderr)
+            return ""
         parts = data.get("result", {}).get("status", {}).get("message", {}).get("parts", [])
         for p in parts:
             if p.get("kind") == "text" or p.get("type") == "text":

scripts/sync_hf.py

@@ -563,26 +563,12 @@ class OpenClawFullSync:
             print("[SYNC] Config patched and saved.")
 
             # Fix paired devices scopes (OpenClaw 2026.2.19+ requires operator.write/read)
-            paired_path = Path(OPENCLAW_DIR) / "devices" / "paired.json"
-            required_scopes = {"operator.admin", "operator.approvals", "operator.pairing", "operator.write", "operator.read"}
-            if paired_path.exists():
-                try:
-                    with open(paired_path, "r") as f:
-                        devices = json.load(f)
-                    changed = False
-                    if isinstance(devices, list):
-                        for dev in devices:
-                            if isinstance(dev, dict) and "scopes" in dev:
-                                existing = set(dev["scopes"])
-                                if not required_scopes.issubset(existing):
-                                    dev["scopes"] = list(required_scopes | existing)
-                                    changed = True
-                    if changed:
-                        with open(paired_path, "w") as f:
-                            json.dump(devices, f, indent=2)
-                        print(f"[SYNC] Fixed paired device scopes: added operator.write/read")
-                except Exception as e:
-                    print(f"[SYNC] Warning: could not fix paired devices: {e}")
+            # Delete old paired devices to force fresh auto-pair with correct scopes
+            devices_dir = Path(OPENCLAW_DIR) / "devices"
+            if devices_dir.exists():
+                import shutil
+                shutil.rmtree(devices_dir, ignore_errors=True)
+                print("[SYNC] Deleted devices/ dir to force fresh auto-pair with operator.write/read scopes")
 
             # Verify write
             with open(config_path, "r") as f: