feat(db): all domain models, initial Alembic migration (32 tables), seed script (8 districts, 89 regions, roles)

backend/app/models/enums.py

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+"""Перечисления предметной области."""
+from enum import StrEnum
+
+
+class MessengerType(StrEnum):
+    TELEGRAM = "telegram"
+    MAX = "max"
+
+
+class UserStatus(StrEnum):
+    ACTIVE = "active"
+    BLOCKED = "blocked"
+    PENDING = "pending"
+
+
+class RoleCode(StrEnum):
+    ADMIN = "admin"
+    COORDINATOR = "coordinator"
+    REGION_HEAD = "region_head"
+    MEMBER = "member"
+    DEPUTY = "deputy"
+
+
+class LoginTokenStatus(StrEnum):
+    ACTIVE = "active"
+    USED = "used"
+    EXPIRED = "expired"
+    REVOKED = "revoked"
+
+
+class SnapshotKind(StrEnum):
+    POINT0 = "point0"
+    CURRENT = "current"
+    HISTORY = "history"
+
+
+class MemberType(StrEnum):
+    MEMBER = "member"
+    RESIDENT = "resident"
+
+
+class TaskStatus(StrEnum):
+    NEW = "new"
+    IN_PROGRESS = "in_progress"
+    REVIEW = "review"
+    DONE = "done"
+
+
+class TaskPriority(StrEnum):
+    LOW = "low"
+    MEDIUM = "medium"
+    HIGH = "high"
+
+
+class RequestType(StrEnum):
+    JOIN = "join"
+    ACCESS = "access"
+    EVENT = "event"
+    SUPPORT = "support"
+
+
+class RequestStatus(StrEnum):
+    NEW = "new"
+    IN_PROGRESS = "in_progress"
+    CLOSED = "closed"
+
+
+class BroadcastType(StrEnum):
+    INFO = "info"
+    EDUCATION = "education"
+    RATING = "rating"
+
+
+class BroadcastStatus(StrEnum):
+    DRAFT = "draft"
+    SCHEDULED = "scheduled"
+    SENDING = "sending"
+    SENT = "sent"
+    FAILED = "failed"
+
+
+class RecipientStatus(StrEnum):
+    PENDING = "pending"
+    SENT = "sent"
+    FAILED = "failed"
+
+
+class ActorType(StrEnum):
+    USER = "user"
+    ASSISTANT = "assistant"
+    SYSTEM = "system"
+
+
+class LinkType(StrEnum):
+    COMMUNITY = "community"
+    CHAT = "chat"