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_models.py

@@ -0,0 +1,110 @@
+import re
+
+with open("/home/oib/windsurf/aitbc/apps/blockchain-node/src/aitbc_chain/models.py", "r") as f:
+    content = f.read()
+
+content = content.replace(
+    "from sqlmodel import Field, Relationship, SQLModel",
+    "from sqlmodel import Field, Relationship, SQLModel\nfrom sqlalchemy import UniqueConstraint"
+)
+
+content = content.replace(
+    """class Block(SQLModel, table=True):
+    __tablename__ = "block"
+    
+    id: Optional[int] = Field(default=None, primary_key=True)
+    height: int = Field(index=True, unique=True)""",
+    """class Block(SQLModel, table=True):
+    __tablename__ = "block"
+    __table_args__ = (UniqueConstraint("chain_id", "height"),)
+    
+    id: Optional[int] = Field(default=None, primary_key=True)
+    chain_id: str = Field(index=True)
+    height: int = Field(index=True)"""
+)
+
+content = content.replace(
+    """class Transaction(SQLModel, table=True):
+    __tablename__ = "transaction"
+    
+    id: Optional[int] = Field(default=None, primary_key=True)
+    tx_hash: str = Field(index=True, unique=True)
+    block_height: Optional[int] = Field(
+        default=None,
+        index=True,
+        foreign_key="block.height",
+    )""",
+    """class Transaction(SQLModel, table=True):
+    __tablename__ = "transaction"
+    
+    id: Optional[int] = Field(default=None, primary_key=True)
+    chain_id: str = Field(index=True)
+    tx_hash: str = Field(index=True, unique=True)
+    block_height: Optional[int] = Field(
+        default=None,
+        index=True,
+    )"""
+)
+
+content = content.replace(
+    """class Receipt(SQLModel, table=True):
+    __tablename__ = "receipt"
+    
+    id: Optional[int] = Field(default=None, primary_key=True)
+    job_id: str = Field(index=True)
+    receipt_id: str = Field(index=True, unique=True)
+    block_height: Optional[int] = Field(
+        default=None,
+        index=True,
+        foreign_key="block.height",
+    )""",
+    """class Receipt(SQLModel, table=True):
+    __tablename__ = "receipt"
+    
+    id: Optional[int] = Field(default=None, primary_key=True)
+    chain_id: str = Field(index=True)
+    job_id: str = Field(index=True)
+    receipt_id: str = Field(index=True, unique=True)
+    block_height: Optional[int] = Field(
+        default=None,
+        index=True,
+    )"""
+)
+
+content = content.replace(
+    """class Account(SQLModel, table=True):
+    __tablename__ = "account"
+    
+    address: str = Field(primary_key=True)""",
+    """class Account(SQLModel, table=True):
+    __tablename__ = "account"
+    
+    chain_id: str = Field(primary_key=True)
+    address: str = Field(primary_key=True)"""
+)
+
+# Fix relationships in Transaction and Receipt to use sa_relationship_kwargs
+content = content.replace(
+    """block: Optional["Block"] = Relationship(back_populates="transactions")""",
+    """block: Optional["Block"] = Relationship(
+        back_populates="transactions",
+        sa_relationship_kwargs={
+            "primaryjoin": "and_(Transaction.block_height==Block.height, Transaction.chain_id==Block.chain_id)",
+            "foreign_keys": "[Transaction.block_height, Transaction.chain_id]"
+        }
+    )"""
+)
+
+content = content.replace(
+    """block: Optional["Block"] = Relationship(back_populates="receipts")""",
+    """block: Optional["Block"] = Relationship(
+        back_populates="receipts",
+        sa_relationship_kwargs={
+            "primaryjoin": "and_(Receipt.block_height==Block.height, Receipt.chain_id==Block.chain_id)",
+            "foreign_keys": "[Receipt.block_height, Receipt.chain_id]"
+        }
+    )"""
+)
+
+with open("/home/oib/windsurf/aitbc/apps/blockchain-node/src/aitbc_chain/models.py", "w") as f:
+    f.write(content)