refactor: migrate database to SQLModel and implement modular DB structure

decnet/web/db/models.py

@@ -0,0 +1,75 @@
+from datetime import datetime
+from typing import Optional, Any, List
+from sqlmodel import SQLModel, Field, Column, JSON
+from pydantic import BaseModel, Field as PydanticField
+
+# --- Database Tables (SQLModel) ---
+
+class User(SQLModel, table=True):
+    __tablename__ = "users"
+    uuid: str = Field(primary_key=True)
+    username: str = Field(index=True, unique=True)
+    password_hash: str
+    role: str = Field(default="viewer")
+    must_change_password: bool = Field(default=False)
+
+class Log(SQLModel, table=True):
+    __tablename__ = "logs"
+    id: Optional[int] = Field(default=None, primary_key=True)
+    timestamp: datetime = Field(default_factory=datetime.utcnow, index=True)
+    decky: str = Field(index=True)
+    service: str = Field(index=True)
+    event_type: str = Field(index=True)
+    attacker_ip: str = Field(index=True)
+    raw_line: str
+    fields: str 
+    msg: Optional[str] = None
+
+class Bounty(SQLModel, table=True):
+    __tablename__ = "bounty"
+    id: Optional[int] = Field(default=None, primary_key=True)
+    timestamp: datetime = Field(default_factory=datetime.utcnow, index=True)
+    decky: str = Field(index=True)
+    service: str = Field(index=True)
+    attacker_ip: str = Field(index=True)
+    bounty_type: str = Field(index=True)
+    payload: str
+
+# --- API Request/Response Models (Pydantic) ---
+
+class Token(BaseModel):
+    access_token: str
+    token_type: str
+    must_change_password: bool = False
+
+class LoginRequest(BaseModel):
+    username: str
+    password: str = PydanticField(..., max_length=72)
+
+class ChangePasswordRequest(BaseModel):
+    old_password: str = PydanticField(..., max_length=72)
+    new_password: str = PydanticField(..., max_length=72)
+
+class LogsResponse(BaseModel):
+    total: int
+    limit: int
+    offset: int
+    data: List[dict[str, Any]]
+
+class BountyResponse(BaseModel):
+    total: int
+    limit: int
+    offset: int
+    data: List[dict[str, Any]]
+
+class StatsResponse(BaseModel):
+    total_logs: int
+    unique_attackers: int
+    active_deckies: int
+    deployed_deckies: int
+
+class MutateIntervalRequest(BaseModel):
+    mutate_interval: Optional[int] = None
+
+class DeployIniRequest(BaseModel):
+    ini_content: str = PydanticField(..., min_length=5, max_length=512 * 1024)