fix: WIP: Update test scripts for DID verification and claim generation

- Add check-did.sh to verify DID registration using admin JWT auth
- Fix JWT signing in generate-test-claim.sh to match uport-credentials format
- Clean up DID extraction in run-deeplink-tests.sh
- Add proper error handling and response parsing

The changes improve test script reliability by:
1. Using consistent JWT signing across scripts
2. Adding ability to verify DID registration status
3. Simplifying DID info extraction
4. Adding better error messages and debug output

test-scripts/check-did.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+
+# Usage: ./check-did.sh [did]
+# If no DID provided, lists all visible DIDs
+
+API_URL=${ENDORSER_API_URL:-"https://test-api.endorser.ch/api/v2/claim"}
+ADMIN_DID="did:ethr:0x0000694B58C2cC69658993A90D3840C560f2F51F"
+ADMIN_KEY="2b6472c026ec2aa2c4235c994a63868fc9212d18b58f6cbfe861b52e71330f5b"
+
+# Create verification JWT using Python (equivalent to uport-credentials)
+jwt=$(python3 -c "
+from eth_keys import keys
+import hashlib, base64, json, time
+
+# Create header and payload
+header = {'typ': 'JWT', 'alg': 'ES256K'}
+payload = {
+    'iss': '$ADMIN_DID',
+    'exp': int(time.time()) + 300  # 5 minutes from now
+}
+
+# Base64url encode header and payload
+def b64url(data):
+    return base64.urlsafe_b64encode(json.dumps(data).encode()).decode().rstrip('=')
+
+header_b64 = b64url(header)
+payload_b64 = b64url(payload)
+message = f'{header_b64}.{payload_b64}'
+
+# Sign using admin key
+private_key = keys.PrivateKey(bytes.fromhex('$ADMIN_KEY'))
+message_hash = hashlib.sha256(message.encode()).digest()
+signature = private_key.sign_msg_hash(message_hash)
+signature_bytes = signature.r.to_bytes(32, 'big') + signature.s.to_bytes(32, 'big')
+signature_b64 = base64.urlsafe_b64encode(signature_bytes).decode().rstrip('=')
+
+# Output complete JWT
+print(f'{message}.{signature_b64}')
+")
+
+REQUEST_URL="$API_URL/report/whichDidsICanSee"
+echo "Making request to: $REQUEST_URL"
+echo "Getting visible DIDs..."
+response=$(curl -s -X GET "$REQUEST_URL" \
+     -H "Authorization: Bearer $jwt" \
+     -H "Content-Type: application/json")
+
+echo -e "\nResponse:"
+echo "$response" | jq '.'
+
+# If specific DID provided, check if it's in the list
+if [ -n "$1" ]; then
+    echo -e "\nChecking if DID $1 is visible..."
+    if echo "$response" | jq -e --arg did "$1" '.[] | select(. == $did)' > /dev/null; then
+        echo "✅ DID is registered and visible"
+    else
+        echo "❌ DID not found in visible list"
+    fi
+fi