feat: Freelancer Match — полная продакшн версия с AI-матчингом и escrow

backend/app/models/__init__.py

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+"""Модели SQLAlchemy."""
+
+from app.models.user import User, FreelancerProfile, ClientProfile
+from app.models.project import Project
+from app.models.proposal import Proposal
+from app.models.ai_match import AIMatch
+from app.models.escrow import EscrowTransaction
+from app.models.work_session import WorkSession
+from app.models.review import Review
+from app.models.message import Message
+from app.models.notification import Notification
+
+__all__ = [
+    "User", "FreelancerProfile", "ClientProfile",
+    "Project", "Proposal", "AIMatch",
+    "EscrowTransaction", "WorkSession",
+    "Review", "Message", "Notification",
+]

backend/app/models/ai_match.py

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+"""Модель AI-рекомендаций."""
+
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import Column, DateTime, Float, ForeignKey, func
+from sqlalchemy.dialects.postgresql import UUID as PG_UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.core.database import Base
+
+
+class AIMatch(Base):
+    __tablename__ = "ai_matches"
+
+    id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    project_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("projects.id"), nullable=False)
+    freelancer_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
+    match_score: Mapped[float] = mapped_column(Float(precision=5, scale=4), nullable=False)
+    reasons: Mapped[list] = mapped_column("reasons", postgresql.JSONB, default=list)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())

backend/app/models/escrow.py

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+"""Модель Escrow-транзакций (гарант)."""
+
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import Column, DateTime, Enum, Float, ForeignKey, func
+from sqlalchemy.dialects.postgresql import UUID as PG_UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.core.database import Base
+
+
+class EscrowTransaction(Base):
+    __tablename__ = "escrow_transactions"
+
+    id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    project_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("projects.id"), nullable=False)
+    client_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
+    freelancer_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
+    amount: Mapped[float] = mapped_column(Float(precision=10, scale=2), nullable=False)
+    status: Mapped[str] = mapped_column(Enum("pending", "locked", "released", "disputed", "refunded"), default="pending")
+    released_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())

backend/app/models/message.py

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+"""Модель сообщений чата."""
+
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import Column, DateTime, ForeignKey, Text, func
+from sqlalchemy.dialects.postgresql import UUID as PG_UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.core.database import Base
+
+
+class Message(Base):
+    __tablename__ = "messages"
+
+    id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    work_session_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("work_sessions.id"), nullable=False)
+    sender_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
+    content: Mapped[str] = mapped_column(Text, nullable=False)
+    attachments: Mapped[list | None] = mapped_column("attachments", postgresql.JSONB, default=list)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())

backend/app/models/notification.py

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+"""Модель уведомлений."""
+
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import Column, DateTime, Boolean, ForeignKey, String, Text, func
+from sqlalchemy.dialects.postgresql import UUID as PG_UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.core.database import Base
+
+
+class Notification(Base):
+    __tablename__ = "notifications"
+
+    id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    user_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
+    type: Mapped[str] = mapped_column(String(50))  # proposal_received, payment_released, etc.
+    title: Mapped[str | None] = mapped_column(String(255))
+    body: Mapped[str | None] = mapped_column(Text)
+    is_read: Mapped[bool] = mapped_column(default=False)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())

backend/app/models/project.py

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+"""Модели проектов и заявок."""
+
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import Column, DateTime, Enum, Float, ForeignKey, Integer, String, Text, func
+from sqlalchemy.dialects.postgresql import UUID as PG_UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.core.database import Base
+
+
+class Project(Base):
+    __tablename__ = "projects"
+
+    id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    client_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
+    title: Mapped[str] = mapped_column(String(255), nullable=False)
+    description: Mapped[str] = mapped_column(Text, nullable=False)
+    category: Mapped[str | None] = mapped_column(String(100))
+    required_skills: Mapped[list] = mapped_column("required_skills", postgresql.JSONB, default=list)
+    skill_embeddings: Mapped[list | None] = mapped_column("skill_embeddings")  # pgvector
+    budget_min: Mapped[float | None] = mapped_column(Float(precision=10, scale=2))
+    budget_max: Mapped[float | None] = mapped_column(Float(precision=10, scale=2))
+    status: Mapped[str] = mapped_column(Enum("open", "in_progress", "completed", "cancelled"), default="open")
+    deadline: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), onupdate=func.now())
+
+    # Relationships
+    client = relationship("User", foreign_keys=[client_id])
+    proposals: Mapped[list["Proposal"]] = relationship(back_populates="project")
+
+
+class Proposal(Base):
+    __tablename__ = "proposals"
+
+    id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    project_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("projects.id"), nullable=False)
+    freelancer_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
+    cover_letter: Mapped[str | None] = mapped_column(Text)
+    proposed_price: Mapped[float | None] = mapped_column(Float(precision=10, scale=2))
+    estimated_days: Mapped[int | None] = mapped_column(Integer)
+    status: Mapped[str] = mapped_column(Enum("pending", "accepted", "rejected"), default="pending")
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+
+    project: Mapped["Project"] = relationship(back_populates="proposals")

backend/app/models/review.py

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+"""Модель отзывов."""
+
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import Column, DateTime, Enum, ForeignKey, Integer, String, Text, func
+from sqlalchemy.dialects.postgresql import UUID as PG_UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.core.database import Base
+
+
+class Review(Base):
+    __tablename__ = "reviews"
+
+    id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    project_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("projects.id"), nullable=False)
+    reviewer_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
+    reviewee_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
+    rating: Mapped[int] = mapped_column(Integer, nullable=False)
+    comment: Mapped[str | None] = mapped_column(Text)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())

backend/app/models/user.py

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+"""Модели пользователей."""
+
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import Column, DateTime, Enum, Float, Integer, String, Text, func
+from sqlalchemy.dialects.postgresql import UUID as PG_UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.core.database import Base
+
+
+class User(Base):
+    __tablename__ = "users"
+
+    id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    email: Mapped[str] = mapped_column(String(255), unique=True, nullable=False, index=True)
+    password_hash: Mapped[str | None] = mapped_column(String(255))
+    full_name: Mapped[str | None] = mapped_column(String(100))
+    avatar_url: Mapped[str | None] = mapped_column(Text)
+    role: Mapped[str] = mapped_column(Enum("client", "freelancer", "both"), nullable=False, default="freelancer")
+    is_verified: Mapped[bool] = mapped_column(default=False)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), onupdate=func.now())
+
+    # Relationships
+    freelancer_profile: Mapped["FreelancerProfile | None"] = relationship(back_populates="user", uselist=False)
+    client_profile: Mapped["ClientProfile | None"] = relationship(back_populates="user", uselist=False)
+
+
+class FreelancerProfile(Base):
+    __tablename__ = "freelancer_profiles"
+
+    user_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), primary_key=True, nullable=False)
+    bio: Mapped[str | None] = mapped_column(Text)
+    skills: Mapped[list] = mapped_column("skills", postgresql.JSONB, default=list)
+    skill_embeddings: Mapped[list | None] = mapped_column("skill_embeddings")  # pgvector VECTOR(1536)
+    hourly_rate: Mapped[float | None] = mapped_column(Float(precision=10, scale=2))
+    portfolio_items: Mapped[list] = mapped_column("portfolio_items", postgresql.JSONB, default=list)
+    experience_years: Mapped[int | None] = mapped_column(Integer)
+    languages: Mapped[list] = mapped_column("languages", postgresql.JSONB, default=list)
+    rating: Mapped[float] = mapped_column(Float(precision=3, scale=2), default=5.0)
+    total_jobs_completed: Mapped[int] = mapped_column(Integer, default=0)
+    response_time_hours: Mapped[int | None] = mapped_column(Integer)
+    is_online: Mapped[bool] = mapped_column(default=False)
+    last_seen: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+
+    user: Mapped["User"] = relationship(back_populates="freelancer_profile")
+
+
+class ClientProfile(Base):
+    __tablename__ = "client_profiles"
+
+    user_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), primary_key=True, nullable=False)
+    company_name: Mapped[str | None] = mapped_column(String(255))
+    industry: Mapped[str | None] = mapped_column(String(100))
+    budget_range: Mapped[dict | None] = mapped_column("budget_range", postgresql.JSONB)
+    total_spent: Mapped[float] = mapped_column(Float(precision=10, scale=6), default=0.0)
+    rating: Mapped[float] = mapped_column(Float(precision=3, scale=2), default=5.0)
+
+    user: Mapped["User"] = relationship(back_populates="client_profile")

backend/app/models/work_session.py

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+"""Модель рабочей сессии."""
+
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import Column, DateTime, Enum, Float, ForeignKey, func
+from sqlalchemy.dialects.postgresql import UUID as PG_UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.core.database import Base
+
+
+class WorkSession(Base):
+    __tablename__ = "work_sessions"
+
+    id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    project_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("projects.id"), nullable=False)
+    freelancer_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
+    client_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
+    start_time: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    end_time: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    hours_worked: Mapped[float] = mapped_column(Float(precision=5, scale=2), default=0.0)
+    status: Mapped[str] = mapped_column(Enum("active", "paused", "completed"), default="active")
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())