chore: remove configuration files and enhance blockchain explorer with advanced search, analytics, and export features

- Delete .aitbc.yaml.example CLI configuration template
- Delete .lycheeignore link checker exclusion rules
- Delete .nvmrc Node.js version specification
- Add advanced search panel with filters for address, amount range, transaction type, time range, and validator
- Add analytics dashboard with transaction volume, active addresses, and block time metrics
- Add Chart.js integration

dev/scripts/patch_sync.py

@@ -0,0 +1,122 @@
+with open("/home/oib/windsurf/aitbc/apps/blockchain-node/src/aitbc_chain/sync.py", "r") as f:
+    content = f.read()
+
+# Update _append_block
+content = content.replace(
+    """        block = Block(
+            height=block_data["height"],
+            hash=block_data["hash"],
+            parent_hash=block_data["parent_hash"],
+            proposer=block_data.get("proposer", "unknown"),
+            timestamp=timestamp,
+            tx_count=tx_count,
+            state_root=block_data.get("state_root"),
+        )""",
+    """        block = Block(
+            chain_id=self._chain_id,
+            height=block_data["height"],
+            hash=block_data["hash"],
+            parent_hash=block_data["parent_hash"],
+            proposer=block_data.get("proposer", "unknown"),
+            timestamp=timestamp,
+            tx_count=tx_count,
+            state_root=block_data.get("state_root"),
+        )"""
+)
+
+content = content.replace(
+    """                tx = Transaction(
+                    tx_hash=tx_data.get("tx_hash", ""),
+                    block_height=block_data["height"],
+                    sender=tx_data.get("sender", ""),
+                    recipient=tx_data.get("recipient", ""),
+                    payload=tx_data,
+                )""",
+    """                tx = Transaction(
+                    chain_id=self._chain_id,
+                    tx_hash=tx_data.get("tx_hash", ""),
+                    block_height=block_data["height"],
+                    sender=tx_data.get("sender", ""),
+                    recipient=tx_data.get("recipient", ""),
+                    payload=tx_data,
+                )"""
+)
+
+# Update query in import_block
+content = content.replace(
+    """            # Check if block already exists
+            existing = session.exec(
+                select(Block).where(Block.hash == block_hash)
+            ).first()""",
+    """            # Check if block already exists
+            existing = session.exec(
+                select(Block).where(Block.chain_id == self._chain_id).where(Block.hash == block_hash)
+            ).first()"""
+)
+
+content = content.replace(
+    """            # Get our chain head
+            our_head = session.exec(
+                select(Block).order_by(Block.height.desc()).limit(1)
+            ).first()""",
+    """            # Get our chain head
+            our_head = session.exec(
+                select(Block).where(Block.chain_id == self._chain_id).order_by(Block.height.desc()).limit(1)
+            ).first()"""
+)
+
+content = content.replace(
+    """                parent_exists = session.exec(
+                    select(Block).where(Block.hash == parent_hash)
+                ).first()""",
+    """                parent_exists = session.exec(
+                    select(Block).where(Block.chain_id == self._chain_id).where(Block.hash == parent_hash)
+                ).first()"""
+)
+
+content = content.replace(
+    """                existing_at_height = session.exec(
+                    select(Block).where(Block.height == height)
+                ).first()""",
+    """                existing_at_height = session.exec(
+                    select(Block).where(Block.chain_id == self._chain_id).where(Block.height == height)
+                ).first()"""
+)
+
+# Update get_sync_status
+content = content.replace(
+    """            head = session.exec(
+                select(Block).order_by(Block.height.desc()).limit(1)
+            ).first()
+
+            total_blocks = session.exec(select(Block)).all()
+            total_txs = session.exec(select(Transaction)).all()""",
+    """            head = session.exec(
+                select(Block).where(Block.chain_id == self._chain_id).order_by(Block.height.desc()).limit(1)
+            ).first()
+
+            total_blocks = session.exec(select(Block).where(Block.chain_id == self._chain_id)).all()
+            total_txs = session.exec(select(Transaction).where(Transaction.chain_id == self._chain_id)).all()"""
+)
+
+# Update _resolve_fork queries
+content = content.replace(
+    """        blocks_to_remove = session.exec(
+            select(Block).where(Block.height >= fork_height).order_by(Block.height.desc())
+        ).all()""",
+    """        blocks_to_remove = session.exec(
+            select(Block).where(Block.chain_id == self._chain_id).where(Block.height >= fork_height).order_by(Block.height.desc())
+        ).all()"""
+)
+
+content = content.replace(
+    """            old_txs = session.exec(
+                select(Transaction).where(Transaction.block_height == old_block.height)
+            ).all()""",
+    """            old_txs = session.exec(
+                select(Transaction).where(Transaction.chain_id == self._chain_id).where(Transaction.block_height == old_block.height)
+            ).all()"""
+)
+
+with open("/home/oib/windsurf/aitbc/apps/blockchain-node/src/aitbc_chain/sync.py", "w") as f:
+    f.write(content)