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_poa_genesis.py

@@ -0,0 +1,43 @@
+with open("/home/oib/windsurf/aitbc/apps/blockchain-node/src/aitbc_chain/consensus/poa.py", "r") as f:
+    content = f.read()
+
+content = content.replace(
+    """    def _ensure_genesis_block(self) -> None:
+        with self._session_factory() as session:
+            head = session.exec(select(Block).order_by(Block.height.desc()).limit(1)).first()
+            if head is not None:
+                return
+
+            timestamp = datetime.utcnow()
+            block_hash = self._compute_block_hash(0, "0x00", timestamp)
+            genesis = Block(
+                height=0,
+                hash=block_hash,
+                parent_hash="0x00",
+                proposer="genesis",
+                timestamp=timestamp,
+                tx_count=0,
+                state_root=None,
+            )""",
+    """    def _ensure_genesis_block(self) -> None:
+        with self._session_factory() as session:
+            head = session.exec(select(Block).where(Block.chain_id == self._config.chain_id).order_by(Block.height.desc()).limit(1)).first()
+            if head is not None:
+                return
+
+            timestamp = datetime.utcnow()
+            block_hash = self._compute_block_hash(0, "0x00", timestamp)
+            genesis = Block(
+                chain_id=self._config.chain_id,
+                height=0,
+                hash=block_hash,
+                parent_hash="0x00",
+                proposer="genesis",
+                timestamp=timestamp,
+                tx_count=0,
+                state_root=None,
+            )"""
+)
+
+with open("/home/oib/windsurf/aitbc/apps/blockchain-node/src/aitbc_chain/consensus/poa.py", "w") as f:
+    f.write(content)