Simplify integration test account setup with longer retry window

Use faucet's unlockAccount=true with 60 retries (10 min window) to
wait for the daemon's keystore to be ready for key imports. Previous
approaches (ownedWallets, manual unlock) failed because the daemon
has no pre-loaded keys.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: dkijania

.github/workflows/integration.yml

@@ -44,43 +44,37 @@ jobs:
       - name: Acquire test accounts
         id: accounts
         run: |
-          # Query daemon for accounts already in its wallet (pre-loaded by lightnet)
-          WALLETS_QUERY='{ ownedWallets { publicKey locked } }'
-          for i in $(seq 1 30); do
-            RESULT=$(curl -s http://127.0.0.1:8080/graphql \
-              -H "Content-Type: application/json" \
-              -d "{\"query\": \"$WALLETS_QUERY\"}")
-            echo "Wallet query attempt $i: $RESULT"
-            WALLET_COUNT=$(echo "$RESULT" | python3 -c "
-          import sys, json
-          d = json.load(sys.stdin)
-          wallets = d.get('data', {}).get('ownedWallets') or []
-          print(len(wallets))
-          " 2>/dev/null)
-            if [ "$WALLET_COUNT" -gt "1" ] 2>/dev/null; then
+          # The faucet's unlockAccount=true imports and unlocks the key in the
+          # daemon wallet. This can fail if the daemon's keystore isn't ready yet,
+          # so retry with back-off.
+          for i in $(seq 1 60); do
+            SENDER=$(curl -sf "http://127.0.0.1:8181/acquire-account?unlockAccount=true" 2>/dev/null || true)
+            if echo "$SENDER" | python3 -c "import sys,json; d=json.load(sys.stdin); assert 'pk' in d" 2>/dev/null; then
+              echo "Sender acquired on attempt $i"
               break
             fi
+            echo "Attempt $i/60 - waiting for account faucet... Response: $SENDER"
+            # Release the failed account back if it was acquired but unlock failed
+            if echo "$SENDER" | grep -q '"code":500' 2>/dev/null; then
+              # The account wasn't returned since it errored, try fresh
+              true
+            fi
             sleep 10
           done
 
-          # Pick sender (first wallet) and receiver (second wallet), unlock sender
-          read SENDER_PK RECEIVER_PK <<< $(echo "$RESULT" | python3 -c "
-          import sys, json
-          d = json.load(sys.stdin)
-          wallets = d['data']['ownedWallets']
-          print(wallets[0]['publicKey'], wallets[1]['publicKey'])
-          ")
+          SENDER_PK=$(echo "$SENDER" | python3 -c "import sys,json; print(json.load(sys.stdin)['pk'])")
+          if [ -z "$SENDER_PK" ]; then
+            echo "::error::Failed to acquire sender account"
+            exit 1
+          fi
 
-          # Unlock sender if locked
-          UNLOCK_QUERY='mutation(\$input: UnlockInput!) { unlockAccount(input: \$input) { publicKey } }'
-          curl -s http://127.0.0.1:8080/graphql \
-            -H "Content-Type: application/json" \
-            -d "{\"query\": \"$UNLOCK_QUERY\", \"variables\": {\"input\": {\"publicKey\": \"$SENDER_PK\", \"password\": \"\"}}}"
+          RECEIVER=$(curl -s "http://127.0.0.1:8181/acquire-account")
+          RECEIVER_PK=$(echo "$RECEIVER" | python3 -c "import sys,json; print(json.load(sys.stdin)['pk'])")
 
           echo "sender_pk=$SENDER_PK" >> "$GITHUB_OUTPUT"
           echo "receiver_pk=$RECEIVER_PK" >> "$GITHUB_OUTPUT"
-          echo "Sender PK: $SENDER_PK"
-          echo "Receiver PK: $RECEIVER_PK"
+          echo "Sender: $SENDER_PK"
+          echo "Receiver: $RECEIVER_PK"
 
       - name: Run integration tests
         env: