feat: add multi-chain support to agent daemon and improve fork detection logging

- Add chain_id parameter to agent daemon with default "ait-mainnet"
- Filter transactions by chain_id in daemon polling
- Update agent daemon wrapper to support multiple chains via AGENT_DAEMON_CHAINS env var
- Add chain_id validation in fork detection to reject incompatible chains
- Improve logging in sync module with more detailed fork and import failure messages

scripts/wrappers/aitbc-agent-daemon-wrapper.py

@@ -1,11 +1,12 @@
 #!/usr/bin/env python3
 """
 Wrapper script for aitbc-agent-daemon service
-Uses centralized aitbc utilities for path configuration
+Supports multichain by spawning daemon instances for each configured chain
 """
 
 import sys
 import os
+import subprocess
 from pathlib import Path
 
 # Add aitbc to path
@@ -21,18 +22,62 @@ os.environ["PYTHONPATH"] = f"{REPO_DIR}:{REPO_DIR}/packages/py/aitbc-agent-sdk/s
 os.environ["DATA_DIR"] = str(DATA_DIR)
 os.environ["LOG_DIR"] = str(LOG_DIR)
 
-# Execute the actual service
-exec_cmd = [
-    "/opt/aitbc/venv/bin/python",
-    f"{REPO_DIR}/apps/agent-coordinator/scripts/agent_daemon.py",
+# Get chain configuration from environment
+# Support both single chain (CHAIN_ID) and multiple chains (AGENT_DAEMON_CHAINS)
+chains_str = os.getenv("AGENT_DAEMON_CHAINS", "")
+if chains_str:
+    chains = [c.strip() for c in chains_str.split(",")]
+else:
+    chains = [os.getenv("CHAIN_ID", "ait-mainnet")]
+
+# Spawn daemon processes for each chain
+daemon_script = f"{REPO_DIR}/apps/agent-coordinator/scripts/agent_daemon.py"
+base_args = [
     "--wallet", "temp-agent",
     "--address", "ait1d18e286fc0c12888aca94732b5507c8787af71a5",
     "--password-file", str(KEYSTORE_DIR / ".agent_daemon_password"),
     "--keystore-dir", str(KEYSTORE_DIR),
-    "--db-path", "/var/lib/aitbc/data/chain.db",
     "--rpc-url", "http://localhost:8006",
     "--poll-interval", "2",
     "--reply-message", "pong",
     "--trigger-message", "ping"
 ]
-os.execvp(exec_cmd[0], exec_cmd)
+
+if len(chains) == 1:
+    # Single chain: exec directly (replaces wrapper process)
+    chain_id = chains[0]
+    db_path = f"/var/lib/aitbc/data/{chain_id}/chain.db"
+    exec_cmd = [
+        "/opt/aitbc/venv/bin/python",
+        daemon_script,
+        *base_args,
+        "--db-path", db_path,
+        "--chain-id", chain_id
+    ]
+    os.execvp(exec_cmd[0], exec_cmd)
+else:
+    # Multiple chains: spawn subprocesses and wait
+    processes = []
+    for chain_id in chains:
+        db_path = f"/var/lib/aitbc/data/{chain_id}/chain.db"
+        cmd = [
+            "/opt/aitbc/venv/bin/python",
+            daemon_script,
+            *base_args,
+            "--db-path", db_path,
+            "--chain-id", chain_id
+        ]
+        print(f"Starting agent daemon for chain: {chain_id}")
+        proc = subprocess.Popen(cmd)
+        processes.append(proc)
+    
+    # Wait for all processes
+    try:
+        for proc in processes:
+            proc.wait()
+    except KeyboardInterrupt:
+        print("Shutting down agent daemons...")
+        for proc in processes:
+            proc.terminate()
+        for proc in processes:
+            proc.wait()