feat: paginated commands endpoint for attacker profiles

New GET /attackers/{uuid}/commands?limit=&offset=&service= endpoint
serves commands with server-side pagination and optional service filter.
AttackerDetail frontend fetches commands from this endpoint with
page controls. Service badge filter now drives both the API query
and the local fingerprint filter.

decnet/web/db/sqlite/repository.py

@@ -514,3 +514,26 @@ class SQLiteRepository(BaseRepository):
         async with self.session_factory() as session:
             result = await session.execute(statement)
             return result.scalar() or 0
+
+    async def get_attacker_commands(
+        self,
+        uuid: str,
+        limit: int = 50,
+        offset: int = 0,
+        service: Optional[str] = None,
+    ) -> dict[str, Any]:
+        async with self.session_factory() as session:
+            result = await session.execute(
+                select(Attacker.commands).where(Attacker.uuid == uuid)
+            )
+            raw = result.scalar_one_or_none()
+            if raw is None:
+                return {"total": 0, "data": []}
+
+            commands: list = json.loads(raw) if isinstance(raw, str) else raw
+            if service:
+                commands = [c for c in commands if c.get("service") == service]
+
+            total = len(commands)
+            page = commands[offset: offset + limit]
+            return {"total": total, "data": page}